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https://issues.apache.org/jira/browse/OOZIE-3570?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17000865#comment-17000865
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Andras Salamon commented on OOZIE-3570:
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It might be possible to come up with a unit test, but right now Oozie's ssh
unit tests are not working at all: OOZIE-3391
> SSH Action execution command should add the mechanism of timeout
> ----------------------------------------------------------------
>
> Key: OOZIE-3570
> URL: https://issues.apache.org/jira/browse/OOZIE-3570
> Project: Oozie
> Issue Type: Bug
> Reporter: Junfan Zhang
> Assignee: Junfan Zhang
> Priority: Major
>
> *Phenomenon*
> Currently, In SSH action, When the remote machine is hung, execution command
> will waiting. This will cause the number of Oozie threads to be occupied,
> which will cause delays in scheduling other tasks.
> *Solution*
> SSH Action execution command should add timeout prefix. But the {{ssh -o
> ConnectTimeout=20}} is invalid
> {code:java}
> timeout 20s ssh xxxxxxxxxx
> {code}
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