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From Apache Jenkins Server <jenk...@builds.apache.org>
Subject [JENKINS] Lucene-Solr-NightlyTests-8.1 - Build # 28 - Unstable
Date Tue, 07 May 2019 09:49:15 GMT
Build: https://builds.apache.org/job/Lucene-Solr-NightlyTests-8.1/28/

2 tests failed.
FAILED:  org.apache.lucene.index.TestDemoParallelLeafReader.testRandom

Error Message:
/x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/index/_dx.fnm: Too many open files

Stack Trace:
java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/index/_dx.fnm: Too many open files
	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
	at org.apache.lucene.mockfile.HandleTrackingFS.newByteChannel(HandleTrackingFS.java:271)
	at org.apache.lucene.mockfile.FilterFileSystemProvider.newByteChannel(FilterFileSystemProvider.java:212)
	at java.nio.file.Files.newByteChannel(Files.java:361)
	at java.nio.file.Files.newByteChannel(Files.java:407)
	at org.apache.lucene.store.SimpleFSDirectory.openInput(SimpleFSDirectory.java:77)
	at org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2820)
	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:747)
	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:156)
	at org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1069)
	at org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:84)
	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:177)
	at org.apache.lucene.index.BufferedUpdatesStream$SegmentState.<init>(BufferedUpdatesStream.java:271)
	at org.apache.lucene.index.FrozenBufferedUpdates.openSegmentStates(FrozenBufferedUpdates.java:329)
	at org.apache.lucene.index.FrozenBufferedUpdates.forceApply(FrozenBufferedUpdates.java:222)
	at org.apache.lucene.index.FrozenBufferedUpdates.tryApply(FrozenBufferedUpdates.java:160)
	at org.apache.lucene.index.IndexWriter.lambda$publishFrozenUpdates$3(IndexWriter.java:2591)
	at org.apache.lucene.index.IndexWriter.processEvents(IndexWriter.java:5115)
	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1597)
	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1213)
	at org.apache.lucene.index.TestDemoParallelLeafReader.testRandom(TestDemoParallelLeafReader.java:1242)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1750)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:938)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:974)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:988)
	at org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
	at org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:817)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:468)
	at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:947)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:832)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:883)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:894)
	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
	at org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
	at java.lang.Thread.run(Thread.java:748)


FAILED:  org.apache.solr.cloud.autoscaling.HdfsAutoAddReplicasIntegrationTest.testSimple

Error Message:
Waiting for collection testSimple2 Timeout waiting to see state for collection=testSimple2 :DocCollection(testSimple2//collections/testSimple2/state.json/21)={   "pullReplicas":"0",   "replicationFactor":"2",   "shards":{     "shard1":{       "range":"80000000-ffffffff",       "state":"active",       "replicas":{         "core_node3":{           "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node3/data/",           "base_url":"https://127.0.0.1:32771/solr",           "node_name":"127.0.0.1:32771_solr",           "type":"NRT",           "force_set_state":"false",           "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node3/data/tlog",           "core":"testSimple2_shard1_replica_n1",           "shared_storage":"true",           "state":"active",           "leader":"true"},         "core_node5":{           "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node5/data/",           "base_url":"https://127.0.0.1:43815/solr",           "node_name":"127.0.0.1:43815_solr",           "type":"NRT",           "force_set_state":"false",           "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node5/data/tlog",           "core":"testSimple2_shard1_replica_n2",           "shared_storage":"true",           "state":"down"}}},     "shard2":{       "range":"0-7fffffff",       "state":"active",       "replicas":{         "core_node7":{           "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node7/data/",           "base_url":"https://127.0.0.1:32771/solr",           "node_name":"127.0.0.1:32771_solr",           "type":"NRT",           "force_set_state":"false",           "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node7/data/tlog",           "core":"testSimple2_shard2_replica_n4",           "shared_storage":"true",           "state":"active",           "leader":"true"},         "core_node8":{           "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node8/data/",           "base_url":"https://127.0.0.1:43815/solr",           "node_name":"127.0.0.1:43815_solr",           "type":"NRT",           "force_set_state":"false",           "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node8/data/tlog",           "core":"testSimple2_shard2_replica_n6",           "shared_storage":"true",           "state":"down"}}}},   "router":{"name":"compositeId"},   "maxShardsPerNode":"2",   "autoAddReplicas":"true",   "nrtReplicas":"2",   "tlogReplicas":"0"} Live Nodes: [127.0.0.1:32771_solr, 127.0.0.1:42912_solr] Last available state: DocCollection(testSimple2//collections/testSimple2/state.json/21)={   "pullReplicas":"0",   "replicationFactor":"2",   "shards":{     "shard1":{       "range":"80000000-ffffffff",       "state":"active",       "replicas":{         "core_node3":{           "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node3/data/",           "base_url":"https://127.0.0.1:32771/solr",           "node_name":"127.0.0.1:32771_solr",           "type":"NRT",           "force_set_state":"false",           "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node3/data/tlog",           "core":"testSimple2_shard1_replica_n1",           "shared_storage":"true",           "state":"active",           "leader":"true"},         "core_node5":{           "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node5/data/",           "base_url":"https://127.0.0.1:43815/solr",           "node_name":"127.0.0.1:43815_solr",           "type":"NRT",           "force_set_state":"false",           "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node5/data/tlog",           "core":"testSimple2_shard1_replica_n2",           "shared_storage":"true",           "state":"down"}}},     "shard2":{       "range":"0-7fffffff",       "state":"active",       "replicas":{         "core_node7":{           "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node7/data/",           "base_url":"https://127.0.0.1:32771/solr",           "node_name":"127.0.0.1:32771_solr",           "type":"NRT",           "force_set_state":"false",           "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node7/data/tlog",           "core":"testSimple2_shard2_replica_n4",           "shared_storage":"true",           "state":"active",           "leader":"true"},         "core_node8":{           "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node8/data/",           "base_url":"https://127.0.0.1:43815/solr",           "node_name":"127.0.0.1:43815_solr",           "type":"NRT",           "force_set_state":"false",           "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node8/data/tlog",           "core":"testSimple2_shard2_replica_n6",           "shared_storage":"true",           "state":"down"}}}},   "router":{"name":"compositeId"},   "maxShardsPerNode":"2",   "autoAddReplicas":"true",   "nrtReplicas":"2",   "tlogReplicas":"0"}

Stack Trace:
java.lang.AssertionError: Waiting for collection testSimple2
Timeout waiting to see state for collection=testSimple2 :DocCollection(testSimple2//collections/testSimple2/state.json/21)={
  "pullReplicas":"0",
  "replicationFactor":"2",
  "shards":{
    "shard1":{
      "range":"80000000-ffffffff",
      "state":"active",
      "replicas":{
        "core_node3":{
          "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node3/data/",
          "base_url":"https://127.0.0.1:32771/solr",
          "node_name":"127.0.0.1:32771_solr",
          "type":"NRT",
          "force_set_state":"false",
          "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node3/data/tlog",
          "core":"testSimple2_shard1_replica_n1",
          "shared_storage":"true",
          "state":"active",
          "leader":"true"},
        "core_node5":{
          "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node5/data/",
          "base_url":"https://127.0.0.1:43815/solr",
          "node_name":"127.0.0.1:43815_solr",
          "type":"NRT",
          "force_set_state":"false",
          "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node5/data/tlog",
          "core":"testSimple2_shard1_replica_n2",
          "shared_storage":"true",
          "state":"down"}}},
    "shard2":{
      "range":"0-7fffffff",
      "state":"active",
      "replicas":{
        "core_node7":{
          "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node7/data/",
          "base_url":"https://127.0.0.1:32771/solr",
          "node_name":"127.0.0.1:32771_solr",
          "type":"NRT",
          "force_set_state":"false",
          "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node7/data/tlog",
          "core":"testSimple2_shard2_replica_n4",
          "shared_storage":"true",
          "state":"active",
          "leader":"true"},
        "core_node8":{
          "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node8/data/",
          "base_url":"https://127.0.0.1:43815/solr",
          "node_name":"127.0.0.1:43815_solr",
          "type":"NRT",
          "force_set_state":"false",
          "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node8/data/tlog",
          "core":"testSimple2_shard2_replica_n6",
          "shared_storage":"true",
          "state":"down"}}}},
  "router":{"name":"compositeId"},
  "maxShardsPerNode":"2",
  "autoAddReplicas":"true",
  "nrtReplicas":"2",
  "tlogReplicas":"0"}
Live Nodes: [127.0.0.1:32771_solr, 127.0.0.1:42912_solr]
Last available state: DocCollection(testSimple2//collections/testSimple2/state.json/21)={
  "pullReplicas":"0",
  "replicationFactor":"2",
  "shards":{
    "shard1":{
      "range":"80000000-ffffffff",
      "state":"active",
      "replicas":{
        "core_node3":{
          "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node3/data/",
          "base_url":"https://127.0.0.1:32771/solr",
          "node_name":"127.0.0.1:32771_solr",
          "type":"NRT",
          "force_set_state":"false",
          "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node3/data/tlog",
          "core":"testSimple2_shard1_replica_n1",
          "shared_storage":"true",
          "state":"active",
          "leader":"true"},
        "core_node5":{
          "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node5/data/",
          "base_url":"https://127.0.0.1:43815/solr",
          "node_name":"127.0.0.1:43815_solr",
          "type":"NRT",
          "force_set_state":"false",
          "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node5/data/tlog",
          "core":"testSimple2_shard1_replica_n2",
          "shared_storage":"true",
          "state":"down"}}},
    "shard2":{
      "range":"0-7fffffff",
      "state":"active",
      "replicas":{
        "core_node7":{
          "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node7/data/",
          "base_url":"https://127.0.0.1:32771/solr",
          "node_name":"127.0.0.1:32771_solr",
          "type":"NRT",
          "force_set_state":"false",
          "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node7/data/tlog",
          "core":"testSimple2_shard2_replica_n4",
          "shared_storage":"true",
          "state":"active",
          "leader":"true"},
        "core_node8":{
          "dataDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node8/data/",
          "base_url":"https://127.0.0.1:43815/solr",
          "node_name":"127.0.0.1:43815_solr",
          "type":"NRT",
          "force_set_state":"false",
          "ulogDir":"hdfs://localhost:43235/solr_hdfs_home/testSimple2/core_node8/data/tlog",
          "core":"testSimple2_shard2_replica_n6",
          "shared_storage":"true",
          "state":"down"}}}},
  "router":{"name":"compositeId"},
  "maxShardsPerNode":"2",
  "autoAddReplicas":"true",
  "nrtReplicas":"2",
  "tlogReplicas":"0"}
	at __randomizedtesting.SeedInfo.seed([CF6745BDCFCA034:344550A5FB0F74E5]:0)
	at org.junit.Assert.fail(Assert.java:88)
	at org.apache.solr.cloud.SolrCloudTestCase.waitForState(SolrCloudTestCase.java:310)
	at org.apache.solr.cloud.autoscaling.AutoAddReplicasIntegrationTest.testSimple(AutoAddReplicasIntegrationTest.java:169)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1750)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:938)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:974)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:988)
	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
	at org.apache.lucene.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:49)
	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
	at org.apache.lucene.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:48)
	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:817)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:468)
	at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:947)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:832)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:883)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:894)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:45)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:41)
	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:47)
	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:64)
	at org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:54)
	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:368)
	at java.lang.Thread.run(Thread.java:748)




Build Log:
[...truncated 1160 lines...]
   [junit4] Suite: org.apache.lucene.index.TestDemoParallelLeafReader
   [junit4]   2> Μαϊ 06, 2019 11:14:46 ΜΜ com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
   [junit4]   2> WARNING: Uncaught exception in thread: Thread[Lucene Merge Thread #17,5,TGRP-TestDemoParallelLeafReader]
   [junit4]   2> org.apache.lucene.index.MergePolicy$MergeException: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34egsy_0/_0_Direct_0.dvdd: Too many open files
   [junit4]   2> 	at __randomizedtesting.SeedInfo.seed([4F343B901BA2BE6F]:0)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:704)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:684)
   [junit4]   2> Caused by: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34egsy_0/_0_Direct_0.dvdd: Too many open files
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.newOutputStream(HandleTrackingFS.java:160)
   [junit4]   2> 	at org.apache.lucene.mockfile.FilterFileSystemProvider.newOutputStream(FilterFileSystemProvider.java:197)
   [junit4]   2> 	at java.nio.file.Files.newOutputStream(Files.java:216)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:411)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:407)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:255)
   [junit4]   2> 	at org.apache.lucene.store.MockDirectoryWrapper.createOutput(MockDirectoryWrapper.java:667)
   [junit4]   2> 	at org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:44)
   [junit4]   2> 	at org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesConsumer.<init>(DirectDocValuesConsumer.java:55)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesFormat.fieldsConsumer(DirectDocValuesFormat.java:71)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:224)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:160)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.addNumericField(PerFieldDocValuesFormat.java:109)
   [junit4]   2> 	at org.apache.lucene.index.NumericDocValuesWriter.flush(NumericDocValuesWriter.java:122)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.writeDocValues(DefaultIndexingChain.java:263)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.flush(DefaultIndexingChain.java:138)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:468)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:554)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:719)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3590)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3565)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1959)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1939)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$1.reindex(TestDemoParallelLeafReader.java:679)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:405)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:163)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ReindexingMergePolicy$ReindexingOneMerge.wrapForMerge(TestDemoParallelLeafReader.java:533)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4416)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4056)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:625)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:662)
   [junit4]   2> 
   [junit4]   2> Μαϊ 06, 2019 11:14:46 ΜΜ com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
   [junit4]   2> WARNING: Uncaught exception in thread: Thread[Lucene Merge Thread #28,5,TGRP-TestDemoParallelLeafReader]
   [junit4]   2> org.apache.lucene.index.MergePolicy$MergeException: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34eh30_0/_0_Direct_0.dvdm: Too many open files
   [junit4]   2> 	at __randomizedtesting.SeedInfo.seed([4F343B901BA2BE6F]:0)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:704)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:684)
   [junit4]   2> Caused by: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34eh30_0/_0_Direct_0.dvdm: Too many open files
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.newOutputStream(HandleTrackingFS.java:160)
   [junit4]   2> 	at org.apache.lucene.mockfile.FilterFileSystemProvider.newOutputStream(FilterFileSystemProvider.java:197)
   [junit4]   2> 	at java.nio.file.Files.newOutputStream(Files.java:216)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:411)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:407)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:255)
   [junit4]   2> 	at org.apache.lucene.store.MockDirectoryWrapper.createOutput(MockDirectoryWrapper.java:667)
   [junit4]   2> 	at org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:44)
   [junit4]   2> 	at org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesConsumer.<init>(DirectDocValuesConsumer.java:58)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesFormat.fieldsConsumer(DirectDocValuesFormat.java:71)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:224)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:160)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.addNumericField(PerFieldDocValuesFormat.java:109)
   [junit4]   2> 	at org.apache.lucene.index.NumericDocValuesWriter.flush(NumericDocValuesWriter.java:122)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.writeDocValues(DefaultIndexingChain.java:263)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.flush(DefaultIndexingChain.java:138)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:468)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:554)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:719)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3590)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3565)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1959)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1939)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$1.reindex(TestDemoParallelLeafReader.java:679)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:405)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:163)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ReindexingMergePolicy$ReindexingOneMerge.wrapForMerge(TestDemoParallelLeafReader.java:533)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4416)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4056)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:625)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:662)
   [junit4]   2> 
   [junit4]   2> Μαϊ 06, 2019 11:14:46 ΜΜ com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
   [junit4]   2> WARNING: Uncaught exception in thread: Thread[Lucene Merge Thread #29,5,TGRP-TestDemoParallelLeafReader]
   [junit4]   2> org.apache.lucene.index.MergePolicy$MergeException: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34eh5d_0/_0.fdt: Too many open files
   [junit4]   2> 	at __randomizedtesting.SeedInfo.seed([4F343B901BA2BE6F]:0)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:704)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:684)
   [junit4]   2> Caused by: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34eh5d_0/_0.fdt: Too many open files
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.newOutputStream(HandleTrackingFS.java:160)
   [junit4]   2> 	at org.apache.lucene.mockfile.FilterFileSystemProvider.newOutputStream(FilterFileSystemProvider.java:197)
   [junit4]   2> 	at java.nio.file.Files.newOutputStream(Files.java:216)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:411)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:407)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:255)
   [junit4]   2> 	at org.apache.lucene.store.MockDirectoryWrapper.createOutput(MockDirectoryWrapper.java:667)
   [junit4]   2> 	at org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:44)
   [junit4]   2> 	at org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
   [junit4]   2> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.<init>(CompressingStoredFieldsWriter.java:115)
   [junit4]   2> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsFormat.fieldsWriter(CompressingStoredFieldsFormat.java:128)
   [junit4]   2> 	at org.apache.lucene.codecs.lucene50.Lucene50StoredFieldsFormat.fieldsWriter(Lucene50StoredFieldsFormat.java:183)
   [junit4]   2> 	at org.apache.lucene.codecs.asserting.AssertingStoredFieldsFormat.fieldsWriter(AssertingStoredFieldsFormat.java:48)
   [junit4]   2> 	at org.apache.lucene.index.StoredFieldsConsumer.initStoredFieldsWriter(StoredFieldsConsumer.java:39)
   [junit4]   2> 	at org.apache.lucene.index.StoredFieldsConsumer.startDocument(StoredFieldsConsumer.java:46)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.startStoredFields(DefaultIndexingChain.java:367)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.processDocument(DefaultIndexingChain.java:403)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriterPerThread.updateDocument(DocumentsWriterPerThread.java:250)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:494)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1594)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1213)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$1.reindex(TestDemoParallelLeafReader.java:676)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:405)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:163)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ReindexingMergePolicy$ReindexingOneMerge.wrapForMerge(TestDemoParallelLeafReader.java:533)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4416)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4056)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:625)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:662)
   [junit4]   2> 
   [junit4]   2> Μαϊ 06, 2019 11:14:46 ΜΜ com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
   [junit4]   2> WARNING: Uncaught exception in thread: Thread[Lucene Merge Thread #26,5,TGRP-TestDemoParallelLeafReader]
   [junit4]   2> org.apache.lucene.index.MergePolicy$MergeException: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34eh1a_0/_0_Direct_0.dvdm: Too many open files
   [junit4]   2> 	at __randomizedtesting.SeedInfo.seed([4F343B901BA2BE6F]:0)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:704)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:684)
   [junit4]   2> Caused by: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34eh1a_0/_0_Direct_0.dvdm: Too many open files
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.newOutputStream(HandleTrackingFS.java:160)
   [junit4]   2> 	at org.apache.lucene.mockfile.FilterFileSystemProvider.newOutputStream(FilterFileSystemProvider.java:197)
   [junit4]   2> 	at java.nio.file.Files.newOutputStream(Files.java:216)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:411)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:407)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:255)
   [junit4]   2> 	at org.apache.lucene.store.MockDirectoryWrapper.createOutput(MockDirectoryWrapper.java:667)
   [junit4]   2> 	at org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:44)
   [junit4]   2> 	at org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesConsumer.<init>(DirectDocValuesConsumer.java:58)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesFormat.fieldsConsumer(DirectDocValuesFormat.java:71)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:224)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:160)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.addNumericField(PerFieldDocValuesFormat.java:109)
   [junit4]   2> 	at org.apache.lucene.index.NumericDocValuesWriter.flush(NumericDocValuesWriter.java:122)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.writeDocValues(DefaultIndexingChain.java:263)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.flush(DefaultIndexingChain.java:138)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:468)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:554)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:719)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3590)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3565)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1959)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1939)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$1.reindex(TestDemoParallelLeafReader.java:679)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:405)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:163)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ReindexingMergePolicy$ReindexingOneMerge.wrapForMerge(TestDemoParallelLeafReader.java:533)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4416)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4056)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:625)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:662)
   [junit4]   2> 
   [junit4]   2> Μαϊ 06, 2019 11:14:46 ΜΜ com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
   [junit4]   2> WARNING: Uncaught exception in thread: Thread[Lucene Merge Thread #21,5,TGRP-TestDemoParallelLeafReader]
   [junit4]   2> org.apache.lucene.index.MergePolicy$MergeException: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34egw1_0/_0_Direct_0.dvdd: Too many open files
   [junit4]   2> 	at __randomizedtesting.SeedInfo.seed([4F343B901BA2BE6F]:0)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:704)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:684)
   [junit4]   2> Caused by: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34egw1_0/_0_Direct_0.dvdd: Too many open files
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.newOutputStream(HandleTrackingFS.java:160)
   [junit4]   2> 	at org.apache.lucene.mockfile.FilterFileSystemProvider.newOutputStream(FilterFileSystemProvider.java:197)
   [junit4]   2> 	at java.nio.file.Files.newOutputStream(Files.java:216)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:411)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:407)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:255)
   [junit4]   2> 	at org.apache.lucene.store.MockDirectoryWrapper.createOutput(MockDirectoryWrapper.java:667)
   [junit4]   2> 	at org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:44)
   [junit4]   2> 	at org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesConsumer.<init>(DirectDocValuesConsumer.java:55)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesFormat.fieldsConsumer(DirectDocValuesFormat.java:71)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:224)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:160)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.addNumericField(PerFieldDocValuesFormat.java:109)
   [junit4]   2> 	at org.apache.lucene.index.NumericDocValuesWriter.flush(NumericDocValuesWriter.java:122)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.writeDocValues(DefaultIndexingChain.java:263)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.flush(DefaultIndexingChain.java:138)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:468)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:554)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:719)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3590)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3565)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1959)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1939)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$1.reindex(TestDemoParallelLeafReader.java:679)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:405)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:163)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ReindexingMergePolicy$ReindexingOneMerge.wrapForMerge(TestDemoParallelLeafReader.java:533)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4416)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4056)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:625)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:662)
   [junit4]   2> 
   [junit4]   2> Μαϊ 06, 2019 11:14:46 ΜΜ com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
   [junit4]   2> WARNING: Uncaught exception in thread: Thread[Lucene Merge Thread #18,5,TGRP-TestDemoParallelLeafReader]
   [junit4]   2> org.apache.lucene.index.MergePolicy$MergeException: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34egtm_0/_0_Direct_0.dvdd: Too many open files
   [junit4]   2> 	at __randomizedtesting.SeedInfo.seed([4F343B901BA2BE6F]:0)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:704)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:684)
   [junit4]   2> Caused by: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34egtm_0/_0_Direct_0.dvdd: Too many open files
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.newOutputStream(HandleTrackingFS.java:160)
   [junit4]   2> 	at org.apache.lucene.mockfile.FilterFileSystemProvider.newOutputStream(FilterFileSystemProvider.java:197)
   [junit4]   2> 	at java.nio.file.Files.newOutputStream(Files.java:216)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:411)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:407)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:255)
   [junit4]   2> 	at org.apache.lucene.store.MockDirectoryWrapper.createOutput(MockDirectoryWrapper.java:667)
   [junit4]   2> 	at org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:44)
   [junit4]   2> 	at org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesConsumer.<init>(DirectDocValuesConsumer.java:55)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesFormat.fieldsConsumer(DirectDocValuesFormat.java:71)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:224)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:160)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.addNumericField(PerFieldDocValuesFormat.java:109)
   [junit4]   2> 	at org.apache.lucene.index.NumericDocValuesWriter.flush(NumericDocValuesWriter.java:122)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.writeDocValues(DefaultIndexingChain.java:263)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.flush(DefaultIndexingChain.java:138)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:468)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:554)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:719)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3590)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3565)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1959)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1939)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$1.reindex(TestDemoParallelLeafReader.java:679)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:405)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:163)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ReindexingMergePolicy$ReindexingOneMerge.wrapForMerge(TestDemoParallelLeafReader.java:533)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4416)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4056)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:625)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:662)
   [junit4]   2> 
   [junit4]   2> Μαϊ 06, 2019 11:14:46 ΜΜ com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
   [junit4]   2> WARNING: Uncaught exception in thread: Thread[Lucene Merge Thread #25,5,TGRP-TestDemoParallelLeafReader]
   [junit4]   2> org.apache.lucene.index.MergePolicy$MergeException: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34eh00_0/_4.cfe: Too many open files
   [junit4]   2> 	at __randomizedtesting.SeedInfo.seed([4F343B901BA2BE6F]:0)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:704)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:684)
   [junit4]   2> Caused by: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34eh00_0/_4.cfe: Too many open files
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.newByteChannel(HandleTrackingFS.java:271)
   [junit4]   2> 	at org.apache.lucene.mockfile.FilterFileSystemProvider.newByteChannel(FilterFileSystemProvider.java:212)
   [junit4]   2> 	at java.nio.file.Files.newByteChannel(Files.java:361)
   [junit4]   2> 	at java.nio.file.Files.newByteChannel(Files.java:407)
   [junit4]   2> 	at org.apache.lucene.store.SimpleFSDirectory.openInput(SimpleFSDirectory.java:77)
   [junit4]   2> 	at org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2820)
   [junit4]   2> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:747)
   [junit4]   2> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:156)
   [junit4]   2> 	at org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1069)
   [junit4]   2> 	at org.apache.lucene.codecs.lucene50.Lucene50CompoundReader.readEntries(Lucene50CompoundReader.java:106)
   [junit4]   2> 	at org.apache.lucene.codecs.lucene50.Lucene50CompoundReader.<init>(Lucene50CompoundReader.java:70)
   [junit4]   2> 	at org.apache.lucene.codecs.lucene50.Lucene50CompoundFormat.getCompoundReader(Lucene50CompoundFormat.java:70)
   [junit4]   2> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:101)
   [junit4]   2> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:84)
   [junit4]   2> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:177)
   [junit4]   2> 	at org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:716)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4399)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4056)
   [junit4]   2> 	at org.apache.lucene.index.SerialMergeScheduler.merge(SerialMergeScheduler.java:40)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.maybeMerge(IndexWriter.java:2157)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.processEvents(IndexWriter.java:5119)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1597)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1213)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$1.reindex(TestDemoParallelLeafReader.java:676)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:405)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:163)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ReindexingMergePolicy$ReindexingOneMerge.wrapForMerge(TestDemoParallelLeafReader.java:533)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4416)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4056)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:625)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:662)
   [junit4]   2> 
   [junit4]   2> Μαϊ 06, 2019 11:14:46 ΜΜ com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
   [junit4]   2> WARNING: Uncaught exception in thread: Thread[Lucene Merge Thread #19,5,TGRP-TestDemoParallelLeafReader]
   [junit4]   2> org.apache.lucene.index.MergePolicy$MergeException: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34egum_0/_0_Direct_0.dvdm: Too many open files
   [junit4]   2> 	at __randomizedtesting.SeedInfo.seed([4F343B901BA2BE6F]:0)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:704)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:684)
   [junit4]   2> Caused by: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34egum_0/_0_Direct_0.dvdm: Too many open files
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.newOutputStream(HandleTrackingFS.java:160)
   [junit4]   2> 	at org.apache.lucene.mockfile.FilterFileSystemProvider.newOutputStream(FilterFileSystemProvider.java:197)
   [junit4]   2> 	at java.nio.file.Files.newOutputStream(Files.java:216)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:411)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:407)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:255)
   [junit4]   2> 	at org.apache.lucene.store.MockDirectoryWrapper.createOutput(MockDirectoryWrapper.java:667)
   [junit4]   2> 	at org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:44)
   [junit4]   2> 	at org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesConsumer.<init>(DirectDocValuesConsumer.java:58)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesFormat.fieldsConsumer(DirectDocValuesFormat.java:71)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:224)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:160)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.addNumericField(PerFieldDocValuesFormat.java:109)
   [junit4]   2> 	at org.apache.lucene.index.NumericDocValuesWriter.flush(NumericDocValuesWriter.java:122)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.writeDocValues(DefaultIndexingChain.java:263)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.flush(DefaultIndexingChain.java:138)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:468)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:554)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:719)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3590)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3565)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1959)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1939)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$1.reindex(TestDemoParallelLeafReader.java:679)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:405)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:163)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ReindexingMergePolicy$ReindexingOneMerge.wrapForMerge(TestDemoParallelLeafReader.java:533)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4416)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4056)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:625)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:662)
   [junit4]   2> 
   [junit4]   2> Μαϊ 06, 2019 11:14:46 ΜΜ com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
   [junit4]   2> WARNING: Uncaught exception in thread: Thread[Lucene Merge Thread #23,5,TGRP-TestDemoParallelLeafReader]
   [junit4]   2> org.apache.lucene.index.MergePolicy$MergeException: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34egxf_0/_0_Direct_0.dvdd: Too many open files
   [junit4]   2> 	at __randomizedtesting.SeedInfo.seed([4F343B901BA2BE6F]:0)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:704)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:684)
   [junit4]   2> Caused by: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34egxf_0/_0_Direct_0.dvdd: Too many open files
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.newOutputStream(HandleTrackingFS.java:160)
   [junit4]   2> 	at org.apache.lucene.mockfile.FilterFileSystemProvider.newOutputStream(FilterFileSystemProvider.java:197)
   [junit4]   2> 	at java.nio.file.Files.newOutputStream(Files.java:216)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:411)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:407)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:255)
   [junit4]   2> 	at org.apache.lucene.store.MockDirectoryWrapper.createOutput(MockDirectoryWrapper.java:667)
   [junit4]   2> 	at org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:44)
   [junit4]   2> 	at org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesConsumer.<init>(DirectDocValuesConsumer.java:55)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesFormat.fieldsConsumer(DirectDocValuesFormat.java:71)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:224)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:160)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.addNumericField(PerFieldDocValuesFormat.java:109)
   [junit4]   2> 	at org.apache.lucene.index.NumericDocValuesWriter.flush(NumericDocValuesWriter.java:122)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.writeDocValues(DefaultIndexingChain.java:263)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.flush(DefaultIndexingChain.java:138)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:468)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:554)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:719)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3590)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3565)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1959)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1939)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$1.reindex(TestDemoParallelLeafReader.java:679)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:405)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:163)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ReindexingMergePolicy$ReindexingOneMerge.wrapForMerge(TestDemoParallelLeafReader.java:533)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4416)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4056)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:625)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:662)
   [junit4]   2> 
   [junit4]   2> Μαϊ 06, 2019 11:14:46 ΜΜ com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
   [junit4]   2> WARNING: Uncaught exception in thread: Thread[Lucene Merge Thread #30,5,TGRP-TestDemoParallelLeafReader]
   [junit4]   2> org.apache.lucene.index.MergePolicy$MergeException: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34eh5t_0/_0.fdt: Too many open files
   [junit4]   2> 	at __randomizedtesting.SeedInfo.seed([4F343B901BA2BE6F]:0)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:704)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:684)
   [junit4]   2> Caused by: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34eh5t_0/_0.fdt: Too many open files
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.newOutputStream(HandleTrackingFS.java:160)
   [junit4]   2> 	at org.apache.lucene.mockfile.FilterFileSystemProvider.newOutputStream(FilterFileSystemProvider.java:197)
   [junit4]   2> 	at java.nio.file.Files.newOutputStream(Files.java:216)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:411)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:407)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:255)
   [junit4]   2> 	at org.apache.lucene.store.MockDirectoryWrapper.createOutput(MockDirectoryWrapper.java:667)
   [junit4]   2> 	at org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:44)
   [junit4]   2> 	at org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
   [junit4]   2> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.<init>(CompressingStoredFieldsWriter.java:115)
   [junit4]   2> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsFormat.fieldsWriter(CompressingStoredFieldsFormat.java:128)
   [junit4]   2> 	at org.apache.lucene.codecs.lucene50.Lucene50StoredFieldsFormat.fieldsWriter(Lucene50StoredFieldsFormat.java:183)
   [junit4]   2> 	at org.apache.lucene.codecs.asserting.AssertingStoredFieldsFormat.fieldsWriter(AssertingStoredFieldsFormat.java:48)
   [junit4]   2> 	at org.apache.lucene.index.StoredFieldsConsumer.initStoredFieldsWriter(StoredFieldsConsumer.java:39)
   [junit4]   2> 	at org.apache.lucene.index.StoredFieldsConsumer.startDocument(StoredFieldsConsumer.java:46)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.startStoredFields(DefaultIndexingChain.java:367)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.processDocument(DefaultIndexingChain.java:403)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriterPerThread.updateDocument(DocumentsWriterPerThread.java:250)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:494)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1594)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1213)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$1.reindex(TestDemoParallelLeafReader.java:676)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:405)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:163)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ReindexingMergePolicy$ReindexingOneMerge.wrapForMerge(TestDemoParallelLeafReader.java:533)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4416)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4056)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:625)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:662)
   [junit4]   2> 
   [junit4]   2> Μαϊ 06, 2019 11:14:46 ΜΜ com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
   [junit4]   2> WARNING: Uncaught exception in thread: Thread[Lucene Merge Thread #27,5,TGRP-TestDemoParallelLeafReader]
   [junit4]   2> org.apache.lucene.index.MergePolicy$MergeException: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34eh25_0/_0_Direct_0.dvdm: Too many open files
   [junit4]   2> 	at __randomizedtesting.SeedInfo.seed([4F343B901BA2BE6F]:0)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:704)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:684)
   [junit4]   2> Caused by: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34eh25_0/_0_Direct_0.dvdm: Too many open files
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.newOutputStream(HandleTrackingFS.java:160)
   [junit4]   2> 	at org.apache.lucene.mockfile.FilterFileSystemProvider.newOutputStream(FilterFileSystemProvider.java:197)
   [junit4]   2> 	at java.nio.file.Files.newOutputStream(Files.java:216)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:411)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:407)
   [junit4]   2> 	at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:255)
   [junit4]   2> 	at org.apache.lucene.store.MockDirectoryWrapper.createOutput(MockDirectoryWrapper.java:667)
   [junit4]   2> 	at org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:44)
   [junit4]   2> 	at org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesConsumer.<init>(DirectDocValuesConsumer.java:58)
   [junit4]   2> 	at org.apache.lucene.codecs.memory.DirectDocValuesFormat.fieldsConsumer(DirectDocValuesFormat.java:71)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:224)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:160)
   [junit4]   2> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.addNumericField(PerFieldDocValuesFormat.java:109)
   [junit4]   2> 	at org.apache.lucene.index.NumericDocValuesWriter.flush(NumericDocValuesWriter.java:122)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.writeDocValues(DefaultIndexingChain.java:263)
   [junit4]   2> 	at org.apache.lucene.index.DefaultIndexingChain.flush(DefaultIndexingChain.java:138)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:468)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:554)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:413)
   [junit4]   2> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:514)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1594)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1213)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$1.reindex(TestDemoParallelLeafReader.java:676)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:405)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:163)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ReindexingMergePolicy$ReindexingOneMerge.wrapForMerge(TestDemoParallelLeafReader.java:533)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4416)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4056)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:625)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:662)
   [junit4]   2> 
   [junit4]   2> Μαϊ 06, 2019 11:14:46 ΜΜ com.carrotsearch.randomizedtesting.RandomizedRunner$QueueUncaughtExceptionsHandler uncaughtException
   [junit4]   2> WARNING: Uncaught exception in thread: Thread[Lucene Merge Thread #24,5,TGRP-TestDemoParallelLeafReader]
   [junit4]   2> org.apache.lucene.index.MergePolicy$MergeException: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34egxy_0/_4.cfe: Too many open files
   [junit4]   2> 	at __randomizedtesting.SeedInfo.seed([4F343B901BA2BE6F]:0)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:704)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:684)
   [junit4]   2> Caused by: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34egxy_0/_4.cfe: Too many open files
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
   [junit4]   2> 	at org.apache.lucene.mockfile.HandleTrackingFS.newByteChannel(HandleTrackingFS.java:271)
   [junit4]   2> 	at org.apache.lucene.mockfile.FilterFileSystemProvider.newByteChannel(FilterFileSystemProvider.java:212)
   [junit4]   2> 	at java.nio.file.Files.newByteChannel(Files.java:361)
   [junit4]   2> 	at java.nio.file.Files.newByteChannel(Files.java:407)
   [junit4]   2> 	at org.apache.lucene.store.SimpleFSDirectory.openInput(SimpleFSDirectory.java:77)
   [junit4]   2> 	at org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2820)
   [junit4]   2> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:747)
   [junit4]   2> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:156)
   [junit4]   2> 	at org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1069)
   [junit4]   2> 	at org.apache.lucene.codecs.lucene50.Lucene50CompoundReader.readEntries(Lucene50CompoundReader.java:106)
   [junit4]   2> 	at org.apache.lucene.codecs.lucene50.Lucene50CompoundReader.<init>(Lucene50CompoundReader.java:70)
   [junit4]   2> 	at org.apache.lucene.codecs.lucene50.Lucene50CompoundFormat.getCompoundReader(Lucene50CompoundFormat.java:70)
   [junit4]   2> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:101)
   [junit4]   2> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:84)
   [junit4]   2> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:177)
   [junit4]   2> 	at org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:716)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4399)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4056)
   [junit4]   2> 	at org.apache.lucene.index.SerialMergeScheduler.merge(SerialMergeScheduler.java:40)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.maybeMerge(IndexWriter.java:2157)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.processEvents(IndexWriter.java:5119)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1597)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1213)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$1.reindex(TestDemoParallelLeafReader.java:676)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:405)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:163)
   [junit4]   2> 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ReindexingMergePolicy$ReindexingOneMerge.wrapForMerge(TestDemoParallelLeafReader.java:533)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4416)
   [junit4]   2> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4056)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:625)
   [junit4]   2> 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:662)
   [junit4]   2> 
   [junit4]   2> NOTE: download the large Jenkins line-docs file by running 'ant get-jenkins-line-docs' in the lucene directory.
   [junit4]   2> NOTE: reproduce with: ant test  -Dtestcase=TestDemoParallelLeafReader -Dtests.method=testRandom -Dtests.seed=4F343B901BA2BE6F -Dtests.multiplier=2 -Dtests.nightly=true -Dtests.slow=true -Dtests.linedocsfile=/home/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/test-data/enwiki.random.lines.txt -Dtests.locale=el-GR -Dtests.timezone=America/Costa_Rica -Dtests.asserts=true -Dtests.file.encoding=UTF-8
   [junit4] ERROR   54.6s J2 | TestDemoParallelLeafReader.testRandom <<<
   [junit4]    > Throwable #1: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/index/_dx.fnm: Too many open files
   [junit4]    > 	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
   [junit4]    > 	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
   [junit4]    > 	at org.apache.lucene.mockfile.HandleTrackingFS.newByteChannel(HandleTrackingFS.java:271)
   [junit4]    > 	at org.apache.lucene.mockfile.FilterFileSystemProvider.newByteChannel(FilterFileSystemProvider.java:212)
   [junit4]    > 	at java.nio.file.Files.newByteChannel(Files.java:361)
   [junit4]    > 	at java.nio.file.Files.newByteChannel(Files.java:407)
   [junit4]    > 	at org.apache.lucene.store.SimpleFSDirectory.openInput(SimpleFSDirectory.java:77)
   [junit4]    > 	at org.apache.lucene.util.LuceneTestCase.slowFileExists(LuceneTestCase.java:2820)
   [junit4]    > 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:747)
   [junit4]    > 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:156)
   [junit4]    > 	at org.apache.lucene.store.MockDirectoryWrapper.openChecksumInput(MockDirectoryWrapper.java:1069)
   [junit4]    > 	at org.apache.lucene.codecs.lucene60.Lucene60FieldInfosFormat.read(Lucene60FieldInfosFormat.java:113)
   [junit4]    > 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
   [junit4]    > 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:84)
   [junit4]    > 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:177)
   [junit4]    > 	at org.apache.lucene.index.BufferedUpdatesStream$SegmentState.<init>(BufferedUpdatesStream.java:271)
   [junit4]    > 	at org.apache.lucene.index.FrozenBufferedUpdates.openSegmentStates(FrozenBufferedUpdates.java:329)
   [junit4]    > 	at org.apache.lucene.index.FrozenBufferedUpdates.forceApply(FrozenBufferedUpdates.java:222)
   [junit4]    > 	at org.apache.lucene.index.FrozenBufferedUpdates.tryApply(FrozenBufferedUpdates.java:160)
   [junit4]    > 	at org.apache.lucene.index.IndexWriter.lambda$publishFrozenUpdates$3(IndexWriter.java:2591)
   [junit4]    > 	at org.apache.lucene.index.IndexWriter.processEvents(IndexWriter.java:5115)
   [junit4]    > 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1597)
   [junit4]    > 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1213)
   [junit4]    > 	at org.apache.lucene.index.TestDemoParallelLeafReader.testRandom(TestDemoParallelLeafReader.java:1242)
   [junit4]    > 	at java.lang.Thread.run(Thread.java:748)Throwable #2: com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an uncaught exception in thread: Thread[id=11908, name=Lucene Merge Thread #17, state=RUNNABLE, group=TGRP-TestDemoParallelLeafReader]
   [junit4]    > Caused by: org.apache.lucene.index.MergePolicy$MergeException: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34egsy_0/_0_Direct_0.dvdd: Too many open files
   [junit4]    > 	at __randomizedtesting.SeedInfo.seed([4F343B901BA2BE6F]:0)
   [junit4]    > 	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:704)
   [junit4]    > 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:684)
   [junit4]    > Caused by: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34egsy_0/_0_Direct_0.dvdd: Too many open files
   [junit4]    > 	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
   [junit4]    > 	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
   [junit4]    > 	at org.apache.lucene.mockfile.HandleTrackingFS.newOutputStream(HandleTrackingFS.java:160)
   [junit4]    > 	at org.apache.lucene.mockfile.FilterFileSystemProvider.newOutputStream(FilterFileSystemProvider.java:197)
   [junit4]    > 	at java.nio.file.Files.newOutputStream(Files.java:216)
   [junit4]    > 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:411)
   [junit4]    > 	at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:407)
   [junit4]    > 	at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:255)
   [junit4]    > 	at org.apache.lucene.store.MockDirectoryWrapper.createOutput(MockDirectoryWrapper.java:667)
   [junit4]    > 	at org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:44)
   [junit4]    > 	at org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
   [junit4]    > 	at org.apache.lucene.codecs.memory.DirectDocValuesConsumer.<init>(DirectDocValuesConsumer.java:55)
   [junit4]    > 	at org.apache.lucene.codecs.memory.DirectDocValuesFormat.fieldsConsumer(DirectDocValuesFormat.java:71)
   [junit4]    > 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:224)
   [junit4]    > 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:160)
   [junit4]    > 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.addNumericField(PerFieldDocValuesFormat.java:109)
   [junit4]    > 	at org.apache.lucene.index.NumericDocValuesWriter.flush(NumericDocValuesWriter.java:122)
   [junit4]    > 	at org.apache.lucene.index.DefaultIndexingChain.writeDocValues(DefaultIndexingChain.java:263)
   [junit4]    > 	at org.apache.lucene.index.DefaultIndexingChain.flush(DefaultIndexingChain.java:138)
   [junit4]    > 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:468)
   [junit4]    > 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:554)
   [junit4]    > 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:719)
   [junit4]    > 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3590)
   [junit4]    > 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3565)
   [junit4]    > 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1959)
   [junit4]    > 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1939)
   [junit4]    > 	at org.apache.lucene.index.TestDemoParallelLeafReader$1.reindex(TestDemoParallelLeafReader.java:679)
   [junit4]    > 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getParallelLeafReader(TestDemoParallelLeafReader.java:405)
   [junit4]    > 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader.getCurrentReader(TestDemoParallelLeafReader.java:163)
   [junit4]    > 	at org.apache.lucene.index.TestDemoParallelLeafReader$ReindexingReader$ReindexingMergePolicy$ReindexingOneMerge.wrapForMerge(TestDemoParallelLeafReader.java:533)
   [junit4]    > 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4416)
   [junit4]    > 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4056)
   [junit4]    > 	at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:625)
   [junit4]    > 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:662)Throwable #3: com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an uncaught exception in thread: Thread[id=11922, name=Lucene Merge Thread #28, state=RUNNABLE, group=TGRP-TestDemoParallelLeafReader]
   [junit4]    > Caused by: org.apache.lucene.index.MergePolicy$MergeException: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34eh30_0/_0_Direct_0.dvdm: Too many open files
   [junit4]    > 	at __randomizedtesting.SeedInfo.seed([4F343B901BA2BE6F]:0)
   [junit4]    > 	at org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:704)
   [junit4]    > 	at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:684)
   [junit4]    > Caused by: java.nio.file.FileSystemException: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/build/core/test/J2/temp/lucene.index.TestDemoParallelLeafReader_4F343B901BA2BE6F-001/tempDir-003/segs/6dqscbl6r3queduy0ze34eh30_0/_0_Direct_0.dvdm: Too many open files
   [junit4]    > 	at org.apache.lucene.mockfile.HandleLimitFS.onOpen(HandleLimitFS.java:48)
   [junit4]    > 	at org.apache.lucene.mockfile.HandleTrackingFS.callOpenHook(HandleTrackingFS.java:81)
   [junit4]    > 	at org.apache.lucene.mockfil

[...truncated too long message...]

-ivy-fail-disallowed-ivy-version:

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ivy-configure:
[ivy:configure] :: loading settings :: file = /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/top-level-ivy-settings.xml

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[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

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[ivy:configure] :: loading settings :: file = /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/top-level-ivy-settings.xml

resolve:

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[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

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ivy-configure:
[ivy:configure] :: loading settings :: file = /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/top-level-ivy-settings.xml

resolve:

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[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

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ivy-configure:
[ivy:configure] :: loading settings :: file = /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/top-level-ivy-settings.xml

resolve:

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[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

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ivy-configure:
[ivy:configure] :: loading settings :: file = /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

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ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

ivy-fail:

ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

ivy-fail:

ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

ivy-fail:

ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

ivy-fail:

ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

ivy-fail:

ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

ivy-fail:

ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/top-level-ivy-settings.xml

resolve:

ivy-availability-check:
[loadresource] Do not set property disallowed.ivy.jars.list as its length is 0.

-ivy-fail-disallowed-ivy-version:

ivy-fail:

ivy-fail:

ivy-configure:
[ivy:configure] :: loading settings :: file = /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/lucene/top-level-ivy-settings.xml

resolve:

jar-checksums:
    [mkdir] Created dir: /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/solr/null932529284
     [copy] Copying 239 files to /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/solr/null932529284
   [delete] Deleting directory /x1/jenkins/jenkins-slave/workspace/Lucene-Solr-NightlyTests-8.1/checkout/solr/null932529284

check-working-copy:
[ivy:cachepath] :: resolving dependencies :: #;working@lucene1-us-west
[ivy:cachepath] 	confs: [default]
[ivy:cachepath] 	found org.eclipse.jgit#org.eclipse.jgit;5.3.0.201903130848-r in public
[ivy:cachepath] 	found com.jcraft#jsch;0.1.54 in public
[ivy:cachepath] 	found com.jcraft#jzlib;1.1.1 in public
[ivy:cachepath] 	found com.googlecode.javaewah#JavaEWAH;1.1.6 in public
[ivy:cachepath] 	found org.slf4j#slf4j-api;1.7.2 in public
[ivy:cachepath] 	found org.bouncycastle#bcpg-jdk15on;1.60 in public
[ivy:cachepath] 	found org.bouncycastle#bcprov-jdk15on;1.60 in public
[ivy:cachepath] 	found org.bouncycastle#bcpkix-jdk15on;1.60 in public
[ivy:cachepath] 	found org.slf4j#slf4j-nop;1.7.2 in public
[ivy:cachepath] :: resolution report :: resolve 65ms :: artifacts dl 13ms
	---------------------------------------------------------------------
	|                  |            modules            ||   artifacts   |
	|       conf       | number| search|dwnlded|evicted|| number|dwnlded|
	---------------------------------------------------------------------
	|      default     |   9   |   0   |   0   |   0   ||   9   |   0   |
	---------------------------------------------------------------------
[wc-checker] Initializing working copy...
[wc-checker] Checking working copy status...

-jenkins-base:

BUILD SUCCESSFUL
Total time: 319 minutes 2 seconds
Archiving artifacts
java.lang.InterruptedException: no matches found within 10000
	at hudson.FilePath$ValidateAntFileMask.hasMatch(FilePath.java:2847)
	at hudson.FilePath$ValidateAntFileMask.invoke(FilePath.java:2726)
	at hudson.FilePath$ValidateAntFileMask.invoke(FilePath.java:2707)
	at hudson.FilePath$FileCallableWrapper.call(FilePath.java:3086)
Also:   hudson.remoting.Channel$CallSiteStackTrace: Remote call to lucene
		at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1741)
		at hudson.remoting.UserRequest$ExceptionResponse.retrieve(UserRequest.java:357)
		at hudson.remoting.Channel.call(Channel.java:955)
		at hudson.FilePath.act(FilePath.java:1072)
		at hudson.FilePath.act(FilePath.java:1061)
		at hudson.FilePath.validateAntFileMask(FilePath.java:2705)
		at hudson.tasks.ArtifactArchiver.perform(ArtifactArchiver.java:243)
		at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:81)
		at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
		at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:744)
		at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:690)
		at hudson.model.Build$BuildExecution.post2(Build.java:186)
		at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:635)
		at hudson.model.Run.execute(Run.java:1835)
		at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
		at hudson.model.ResourceController.execute(ResourceController.java:97)
		at hudson.model.Executor.run(Executor.java:429)
Caused: hudson.FilePath$TunneledInterruptedException
	at hudson.FilePath$FileCallableWrapper.call(FilePath.java:3088)
	at hudson.remoting.UserRequest.perform(UserRequest.java:212)
	at hudson.remoting.UserRequest.perform(UserRequest.java:54)
	at hudson.remoting.Request$2.run(Request.java:369)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:748)
Caused: java.lang.InterruptedException: java.lang.InterruptedException: no matches found within 10000
	at hudson.FilePath.act(FilePath.java:1074)
	at hudson.FilePath.act(FilePath.java:1061)
	at hudson.FilePath.validateAntFileMask(FilePath.java:2705)
	at hudson.tasks.ArtifactArchiver.perform(ArtifactArchiver.java:243)
	at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:81)
	at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
	at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:744)
	at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:690)
	at hudson.model.Build$BuildExecution.post2(Build.java:186)
	at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:635)
	at hudson.model.Run.execute(Run.java:1835)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
	at hudson.model.ResourceController.execute(ResourceController.java:97)
	at hudson.model.Executor.run(Executor.java:429)
No artifacts found that match the file pattern "**/*.events,heapdumps/**,**/hs_err_pid*". Configuration error?
Recording test results
Build step 'Publish JUnit test result report' changed build result to UNSTABLE
Email was triggered for: Unstable (Test Failures)
Sending email for trigger: Unstable (Test Failures)

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