[HDFS-6083] TestQuorumJournalManager#testChangeWritersLogsOutOfSync2 occasionally fails

• Type: Test
• Status: Resolved
• Priority: Minor
• Resolution: Cannot Reproduce
• Assignee: Unassigned
• Reporter: Ted Yu
• Created: 10/Mar/14 04:27
• Updated: 11/May/14 16:00
• Resolved: 11/May/14 16:00

Description

From https://builds.apache.org/job/Hadoop-Hdfs-trunk/1695/testReport/junit/org.apache.hadoop.hdfs.qjournal.client/TestQuorumJournalManager/testChangeWritersLogsOutOfSync2/ :

Leaked thread: "IPC Client (26533782) connection to /127.0.0.1:57898 from jenkins" Id=590 RUNNABLE
 at java.lang.System.arraycopy(Native Method)
 at java.lang.ThreadGroup.remove(ThreadGroup.java:885)
 at java.lang.Thread.exit(Thread.java:672)

The following check should give more time for the threads to shutdown:

    // Should not leak clients between tests -- this can cause flaky tests.
    // (See HDFS-4643)
    GenericTestUtils.assertNoThreadsMatching(".*IPC Client.*");