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https://issues.apache.org/jira/browse/HDFS-9347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15138262#comment-15138262
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Hudson commented on HDFS-9347:
------------------------------
FAILURE: Integrated in Hadoop-trunk-Commit #9265 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/9265/])
Move HDFS-9347 from 2.8.0 to 2.6.5 in CHANGES.txt. (waltersu4549: rev
acac72911e59a54414cc72c788626792b24af2f3)
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
> Invariant assumption in TestQuorumJournalManager.shutdown() is wrong
> --------------------------------------------------------------------
>
> Key: HDFS-9347
> URL: https://issues.apache.org/jira/browse/HDFS-9347
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: test
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Fix For: 2.8.0
>
> Attachments: HDFS-9347.001.patch, HDFS-9347.002.patch,
> HDFS-9347.003.patch, HDFS-9347.004.patch, HDFS-9347.005.patch,
> HDFS-9347.006.patch
>
>
> The code
> {code:title=TestTestQuorumJournalManager.java|borderStyle=solid}
> @After
> public void shutdown() throws IOException {
> IOUtils.cleanup(LOG, toClose.toArray(new Closeable[0]));
>
> // Should not leak clients between tests -- this can cause flaky tests.
> // (See HDFS-4643)
> GenericTestUtils.assertNoThreadsMatching(".*IPC Client.*");
>
> if (cluster != null) {
> cluster.shutdown();
> }
> }
> {code}
> implicitly assumes when the call returns from IOUtils.cleanup() (which calls
> close() on QuorumJournalManager object), all IPC client connection threads
> are terminated. However, there is no internal implementation that enforces
> this assumption. Even if the bug reported in HADOOP-12532 is fixed, the
> internal code still only ensures IPC connections are terminated, but not the
> thread.
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