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https://issues.apache.org/jira/browse/ZOOKEEPER-3040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16471222#comment-16471222
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Patrick Hunt commented on ZOOKEEPER-3040:
-----------------------------------------
Looks like the test code is assuming the follower is up to date, which without
a sync call might not be the case. Hence flakey. Please also verify that the
zk.close is synchronous.
{noformat}
// close the session and newly created ephemeral node should be deleted
zk.close();
nodeAtFollower = followerZK.exists(nodePath, false);
// Problem 2: Before fix, after session close the ephemeral node
// was not getting deleted. But now after the fix after session close
// ephemeral node is getting deleted.
assertNull("After session close ephemeral node must be deleted",
nodeAtFollower);
{noformat}
> flaky test EphemeralNodeDeletionTest
> ------------------------------------
>
> Key: ZOOKEEPER-3040
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3040
> Project: ZooKeeper
> Issue Type: Bug
> Components: tests
> Affects Versions: 3.5.4, 3.6.0, 3.4.12
> Reporter: Patrick Hunt
> Priority: Major
> Fix For: 3.6.0, 3.4.13, 3.5.5
>
>
> Flakey test EphemeralNodeDeletionTest
> {noformat}
> java.lang.AssertionError: After session close ephemeral node must be deleted
> expected null, but
> was:<4294967302,4294967302,1525988536834,1525988536834,0,0,0,144127862257483776,1,0,4294967302
> {noformat}
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