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From yjzhan...@apache.org
Subject [1/3] hadoop git commit: HDFS-6694. TestPipelinesFailover.testPipelineRecoveryStress tests fail intermittently with various symptoms - debugging patch (Contributed by Yongjun Zhang)
Date Wed, 25 Nov 2015 16:58:03 GMT
Repository: hadoop
Updated Branches:
  refs/heads/branch-2 425799125 -> 48b294c58


HDFS-6694. TestPipelinesFailover.testPipelineRecoveryStress tests fail intermittently with
various symptoms - debugging patch (Contributed by Yongjun Zhang)

(cherry picked from commit c5d9a4a91e4e0faae3a8530408da35b591396060)

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/566ceac1
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/566ceac1
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/566ceac1

Branch: refs/heads/branch-2
Commit: 566ceac1ff07ac1ebb4286853416c1426b17fc04
Parents: 4257991
Author: arp <arp@apache.org>
Authored: Wed Aug 27 09:52:33 2014 -0700
Committer: Yongjun Zhang <yzhang@cloudera.com>
Committed: Wed Nov 25 08:45:59 2015 -0800

----------------------------------------------------------------------
 .../namenode/ha/TestPipelinesFailover.java      | 28 ++++++++++++++++++++
 1 file changed, 28 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/566ceac1/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestPipelinesFailover.java
----------------------------------------------------------------------
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestPipelinesFailover.java
b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestPipelinesFailover.java
index e988a7e..76a62ff 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestPipelinesFailover.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestPipelinesFailover.java
@@ -55,6 +55,7 @@ import org.apache.hadoop.test.GenericTestUtils;
 import org.apache.hadoop.test.GenericTestUtils.DelayAnswer;
 import org.apache.hadoop.test.MultithreadedTestUtil.RepeatingTestThread;
 import org.apache.hadoop.test.MultithreadedTestUtil.TestContext;
+import org.apache.hadoop.util.Shell.ShellCommandExecutor;
 import org.apache.log4j.Level;
 import org.junit.Test;
 import org.mockito.Mockito;
@@ -414,6 +415,33 @@ public class TestPipelinesFailover {
    */
   @Test(timeout=STRESS_RUNTIME*3)
   public void testPipelineRecoveryStress() throws Exception {
+
+    // The following section of code is to help debug HDFS-6694 about
+    // this test that fails from time to time due to "too many open files".
+    //
+    String[] scmd = new String[] {"/bin/sh", "-c", "ulimit -a"};
+    ShellCommandExecutor sce = new ShellCommandExecutor(scmd);
+    sce.execute();
+
+    System.out.println("HDFS-6694 Debug Data BEGIN===");
+    System.out.println("'ulimit -a' output:\n" + sce.getOutput());
+
+    scmd = new String[] {"hostname"};
+    sce = new ShellCommandExecutor(scmd);
+    sce.execute();
+    System.out.println("'hostname' output:\n" + sce.getOutput());
+
+    scmd = new String[] {"ifconfig"};
+    sce = new ShellCommandExecutor(scmd);
+    sce.execute();
+    System.out.println("'ifconfig' output:\n" + sce.getOutput());
+
+    scmd = new String[] {"whoami"};
+    sce = new ShellCommandExecutor(scmd);
+    sce.execute();
+    System.out.println("'whoami' output:\n" + sce.getOutput());
+    System.out.println("===HDFS-6694 Debug Data END");
+
     HAStressTestHarness harness = new HAStressTestHarness();
     // Disable permissions so that another user can recover the lease.
     harness.conf.setBoolean(


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