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https://issues.apache.org/jira/browse/FLINK-11850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16786708#comment-16786708
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Till Rohrmann commented on FLINK-11850:
---------------------------------------
The problem seems to be that
{{client.delete().deletingChildrenIfNeeded().forPath("/");}} can fail if there
is a concurrent delete operation. We need to be able to tolerate this situation
since this can happen, e.g. if a leader utility has been closed.
{{ZKPaths#deleteChildren}} seems to handle this situation properly. Hence, I
will replace the current code with this call.
> ZooKeeperHaServicesTest#testSimpleCloseAndCleanupAllData fails on Travis
> ------------------------------------------------------------------------
>
> Key: FLINK-11850
> URL: https://issues.apache.org/jira/browse/FLINK-11850
> Project: Flink
> Issue Type: Test
> Components: Runtime / Coordination, Tests
> Reporter: Congxian Qiu(klion26)
> Assignee: Till Rohrmann
> Priority: Critical
> Labels: test-stability
>
> org.apache.flink.runtime.highavailability.zookeeper.ZooKeeperHaServicesTest
> 08:20:01.694 [ERROR]
> testSimpleCloseAndCleanupAllData(org.apache.flink.runtime.highavailability.zookeeper.ZooKeeperHaServicesTest)
> Time elapsed: 0.076 s <<< ERROR!
> org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode =
> NoNode for
> /foo/bar/flink/default/leaderlatch/resource_manager_lock/_c_477d0124-92f3-4069-98aa-a71b8243250c-latch-0000000000
> at
> org.apache.flink.runtime.highavailability.zookeeper.ZooKeeperHaServicesTest.runCleanupTest(ZooKeeperHaServicesTest.java:203)
> at
> org.apache.flink.runtime.highavailability.zookeeper.ZooKeeperHaServicesTest.testSimpleCloseAndCleanupAllData(ZooKeeperHaServicesTest.java:128)
>
> Travis links: https://travis-ci.org/apache/flink/jobs/502960186
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