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https://issues.apache.org/jira/browse/ZOOKEEPER-1264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benjamin Reed updated ZOOKEEPER-1264:
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Attachment: ZOOKEEPER-1264unittest.patch
i've created a unit test to reproduce the problem since we can test it more
directly and deterministicly, but i can't seem to make it happen. i'm attaching
my unit test patch just in case you are camille can see what i'm missing.
if i understand it, the problem is that we are losing proposals that are
received between the NEWLEADER and the UPDATE, but a follower doesn't send out
any acks during that time, so it's okay to lose them. am i misunderstanding the
problem?
> FollowerResyncConcurrencyTest failing intermittently
> ----------------------------------------------------
>
> Key: ZOOKEEPER-1264
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1264
> Project: ZooKeeper
> Issue Type: Bug
> Components: tests
> Affects Versions: 3.3.3, 3.4.0, 3.5.0
> Reporter: Patrick Hunt
> Assignee: Camille Fournier
> Priority: Blocker
> Fix For: 3.3.4, 3.4.0, 3.5.0
>
> Attachments: ZOOKEEPER-1264.patch, ZOOKEEPER-1264.patch,
> ZOOKEEPER-1264_branch33.patch, ZOOKEEPER-1264_branch34.patch,
> ZOOKEEPER-1264unittest.patch, followerresyncfailure_log.txt.gz, logs.zip,
> tmp.zip
>
>
> The FollowerResyncConcurrencyTest test is failing intermittently.
> saw the following on 3.4:
> {noformat}
> junit.framework.AssertionFailedError: Should have same number of
> ephemerals in both followers expected:<11741> but was:<14001>
> at
> org.apache.zookeeper.test.FollowerResyncConcurrencyTest.verifyState(FollowerResyncConcurrencyTest.java:400)
> at
> org.apache.zookeeper.test.FollowerResyncConcurrencyTest.testResyncBySnapThenDiffAfterFollowerCrashes(FollowerResyncConcurrencyTest.java:196)
> at
> org.apache.zookeeper.JUnit4ZKTestRunner$LoggedInvokeMethod.evaluate(JUnit4ZKTestRunner.java:52)
> {noformat}
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