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https://issues.apache.org/jira/browse/HBASE-17764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15903609#comment-15903609
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Stephen Yuan Jiang commented on HBASE-17764:
--------------------------------------------
I could not figure out what resource hold in
TestMultiSlaveReplication#testZKLockCleaner that cause the problem in the
following test. The simple shutdown/start zk cluster between each test would
make the flakiness go away. Attached is the V1 patch going that direction.
Of course, if anyone has insight on figuring out the zk resource hold after the
end of TestMultiSlaveReplication#testZKLockCleaner, that would be even better.
> Solve TestMultiSlaveReplication flakiness
> ------------------------------------------
>
> Key: HBASE-17764
> URL: https://issues.apache.org/jira/browse/HBASE-17764
> Project: HBase
> Issue Type: Bug
> Components: test
> Reporter: Stephen Yuan Jiang
> Assignee: Stephen Yuan Jiang
> Priority: Minor
> Attachments: HBASE-17764.v1-branch-1.patch
>
>
> When I doing testing for a feature I am working on, the
> TestMultiSlaveReplication test was flaky.
> TestMultiSlaveReplication#testMultiSlaveReplication would always pass when
> running alone; however, it would fail occasionally when running with the
> suite (the other test TestMultiSlaveReplication#testZKLockCleaner always run
> first and I suspect that it withhold some zookeeper resource, which caused
> the problem).
> After I set start and shutdown zk cluster before and after each test, I no
> longer see the problem.
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