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https://issues.apache.org/jira/browse/HDFS-14130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16772554#comment-16772554
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Konstantin Shvachko commented on HDFS-14130:
--------------------------------------------
Was debugging this test some more. From Jenkins logs I can see it is failing
while waiting the STANDBY to transition to OBSERVER. {{waitForHAState()}} waits
for 15 seconds, then {{GenericTestUtils.waitFor()}} prints the thread dump. But
I cannot reproduce this locally. I assume there is some client-side retry logic
kicking in if we do state transitioning as {{DFSHAAdmin}} commands. So I
instead now use MiniDFSCluster commands in the test, which is equivalent to
{{DFSHAAdmin}}.
> Make ZKFC ObserverNode aware
> ----------------------------
>
> Key: HDFS-14130
> URL: https://issues.apache.org/jira/browse/HDFS-14130
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha
> Affects Versions: HDFS-12943
> Reporter: Konstantin Shvachko
> Assignee: xiangheng
> Priority: Major
> Attachments: HDFS-14130-HDFS-12943.001.patch,
> HDFS-14130-HDFS-12943.003.patch, HDFS-14130-HDFS-12943.004.patch,
> HDFS-14130-HDFS-12943.005.patch, HDFS-14130-HDFS-12943.006.patch,
> HDFS-14130-HDFS-12943.007.patch, HDFS-14130.008.patch, HDFS-14130.009.patch
>
>
> Need to fix automatic failover with ZKFC. Currently it does not know about
> ObserverNodes trying to convert them to SBNs.
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