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https://issues.apache.org/jira/browse/HBASE-25903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17350306#comment-17350306
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Anoop Sam John commented on HBASE-25903:
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Seems its not really ZOOKEEPER-2184, that fixed this. Am not able to track
down.
But testing with zk client 3.5.7 (what is what 2.3.0+ versions use), the
hanging issue is not there. Checking the code in StaticHostProvider, ya its
not causing IllegalArg exception. So we get IOE back and we retry.
> ReadOnlyZKClient APIs - CompletableFuture.get() calls can cause threads to
> hang forver when ZK client create throws Non IOException
> -----------------------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-25903
> URL: https://issues.apache.org/jira/browse/HBASE-25903
> Project: HBase
> Issue Type: Bug
> Reporter: Anoop Sam John
> Assignee: Anoop Sam John
> Priority: Major
>
> This is applicable for zk client versions which is not having fix for
> ZOOKEEPER-2184.
> Now we are on zookeeper 3.5.7 on active 2.x branches. Still its better to
> handle this case in our code.
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