HDFS-6694. TestPipelinesFailover.testPipelineRecoveryStress tests fail intermittently with various symptoms - debugging patch (Contributed by Yongjun Zhang)
(cherry picked from commit c5d9a4a91e
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Conflicts:
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -55,6 +55,7 @@ import org.apache.hadoop.test.GenericTestUtils;
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import org.apache.hadoop.test.GenericTestUtils.DelayAnswer;
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import org.apache.hadoop.test.MultithreadedTestUtil.RepeatingTestThread;
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import org.apache.hadoop.test.MultithreadedTestUtil.TestContext;
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import org.apache.hadoop.util.Shell.ShellCommandExecutor;
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import org.apache.log4j.Level;
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import org.junit.Test;
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import org.mockito.Mockito;
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@ -414,6 +415,33 @@ public class TestPipelinesFailover {
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*/
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@Test(timeout=STRESS_RUNTIME*3)
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public void testPipelineRecoveryStress() throws Exception {
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// The following section of code is to help debug HDFS-6694 about
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// this test that fails from time to time due to "too many open files".
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//
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String[] scmd = new String[] {"/bin/sh", "-c", "ulimit -a"};
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ShellCommandExecutor sce = new ShellCommandExecutor(scmd);
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sce.execute();
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System.out.println("HDFS-6694 Debug Data BEGIN===");
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System.out.println("'ulimit -a' output:\n" + sce.getOutput());
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scmd = new String[] {"hostname"};
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sce = new ShellCommandExecutor(scmd);
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sce.execute();
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System.out.println("'hostname' output:\n" + sce.getOutput());
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scmd = new String[] {"ifconfig"};
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sce = new ShellCommandExecutor(scmd);
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sce.execute();
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System.out.println("'ifconfig' output:\n" + sce.getOutput());
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scmd = new String[] {"whoami"};
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sce = new ShellCommandExecutor(scmd);
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sce.execute();
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System.out.println("'whoami' output:\n" + sce.getOutput());
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System.out.println("===HDFS-6694 Debug Data END");
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HAStressTestHarness harness = new HAStressTestHarness();
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// Disable permissions so that another user can recover the lease.
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harness.conf.setBoolean(
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