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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-9863) Intermittently TestZooKeeper#testRegionAssignmentAfterMasterRecoveryDueToZKExpiry hangs
Date Wed, 30 Oct 2013 19:43:26 GMT
Ted Yu created HBASE-9863:
-----------------------------

             Summary: Intermittently TestZooKeeper#testRegionAssignmentAfterMasterRecoveryDueToZKExpiry
hangs
                 Key: HBASE-9863
                 URL: https://issues.apache.org/jira/browse/HBASE-9863
             Project: HBase
          Issue Type: Bug
            Reporter: Ted Yu


TestZooKeeper#testRegionAssignmentAfterMasterRecoveryDueToZKExpiry sometimes hung.
Here were two recent occurrences:
https://builds.apache.org/job/PreCommit-HBASE-Build/7676/console
https://builds.apache.org/job/PreCommit-HBASE-Build/7671/console

There were 9 occurrences of the following in both stack traces:
{code}
"FifoRpcScheduler.handler1-thread-5" daemon prio=10 tid=0x09df8800 nid=0xc17 waiting for monitor
entry [0x6fdf8000]
   java.lang.Thread.State: BLOCKED (on object monitor)
  at org.apache.hadoop.hbase.master.TableNamespaceManager.isTableAvailableAndInitialized(TableNamespaceManager.java:250)
  - waiting to lock <0x7f69b5f0> (a org.apache.hadoop.hbase.master.TableNamespaceManager)
  at org.apache.hadoop.hbase.master.HMaster.isTableNamespaceManagerReady(HMaster.java:3146)
  at org.apache.hadoop.hbase.master.HMaster.getNamespaceDescriptor(HMaster.java:3105)
  at org.apache.hadoop.hbase.master.HMaster.createTable(HMaster.java:1743)
  at org.apache.hadoop.hbase.master.HMaster.createTable(HMaster.java:1782)
  at org.apache.hadoop.hbase.protobuf.generated.MasterProtos$MasterService$2.callBlockingMethod(MasterProtos.java:38221)
  at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:1983)
  at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:92)
{code}
The test hung here:
{code}
"pool-1-thread-1" prio=10 tid=0x74f7b800 nid=0x5aa5 in Object.wait() [0x74efe000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
  at java.lang.Object.wait(Native Method)
  - waiting on <0xcc848348> (a org.apache.hadoop.hbase.ipc.RpcClient$Call)
  at org.apache.hadoop.hbase.ipc.RpcClient.call(RpcClient.java:1436)
  - locked <0xcc848348> (a org.apache.hadoop.hbase.ipc.RpcClient$Call)
  at org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1654)
  at org.apache.hadoop.hbase.ipc.RpcClient$BlockingRpcChannelImplementation.callBlockingMethod(RpcClient.java:1712)
  at org.apache.hadoop.hbase.protobuf.generated.MasterProtos$MasterService$BlockingStub.createTable(MasterProtos.java:40372)
  at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$5.createTable(HConnectionManager.java:1931)
  at org.apache.hadoop.hbase.client.HBaseAdmin$2.call(HBaseAdmin.java:598)
  at org.apache.hadoop.hbase.client.HBaseAdmin$2.call(HBaseAdmin.java:594)
  at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:116)
  - locked <0x7faa26d0> (a org.apache.hadoop.hbase.client.RpcRetryingCaller)
  at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:94)
  - locked <0x7faa26d0> (a org.apache.hadoop.hbase.client.RpcRetryingCaller)
  at org.apache.hadoop.hbase.client.HBaseAdmin.executeCallable(HBaseAdmin.java:3124)
  at org.apache.hadoop.hbase.client.HBaseAdmin.createTableAsync(HBaseAdmin.java:594)
  at org.apache.hadoop.hbase.client.HBaseAdmin.createTable(HBaseAdmin.java:485)
  at org.apache.hadoop.hbase.TestZooKeeper.testRegionAssignmentAfterMasterRecoveryDueToZKExpiry(TestZooKeeper.java:486)
{code}



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