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https://issues.apache.org/jira/browse/HADOOP-18905?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17780697#comment-17780697
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ASF GitHub Bot commented on HADOOP-18905:
-----------------------------------------
ayushtkn merged PR #6092:
URL: https://github.com/apache/hadoop/pull/6092
> Negative timeout in ZKFailovercontroller due to overflow
> --------------------------------------------------------
>
> Key: HADOOP-18905
> URL: https://issues.apache.org/jira/browse/HADOOP-18905
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 3.3.6
> Reporter: ConfX
> Assignee: ConfX
> Priority: Major
> Labels: pull-request-available
>
> Graceful fence timeout of FailoverController in ZKFailovercontroller equals
> to `ha.failover-controller.graceful-fence.rpc-timeout.ms` * 2. Since users
> are unaware of this calculation, it thus has risks of overflowing to a
> negative number if users set
> `ha.failover-controller.graceful-fence.rpc-timeout.ms` to a large value.
>
> To reproduce:
> 1. set `ha.failover-controller.graceful-fence.rpc-timeout.ms` to 1092752431
> 2. run `mvn surefire:test
> -Dtest=org.apache.hadoop.ha.TestZKFailoverController#testGracefulFailoverFailBecomingStandby`
>
> We create a PR that provides a fix by checking the timeout after
> multiplication is at least 0.
>
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