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https://issues.apache.org/jira/browse/OOZIE-3156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16322500#comment-16322500
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Andras Piros commented on OOZIE-3156:
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[~txsing] added you to the list of contributors, and assigned this JIRA to you.
Thanks for the patch!
> SSH action status turns OK wrongly when failed to connect to host
> -----------------------------------------------------------------
>
> Key: OOZIE-3156
> URL: https://issues.apache.org/jira/browse/OOZIE-3156
> Project: Oozie
> Issue Type: Bug
> Components: action
> Affects Versions: 4.0.0, 4.1.0, 4.2.0, 4.3.0
> Reporter: TIAN XING
> Assignee: TIAN XING
> Fix For: 4.3.0
>
> Attachments: ssh-check-bug.patch
>
>
> When {{check()}} method of {{SshActionExecutor}} gets invoked, oozie will ssh
> connect to the host and check whether action shell pid is still there (by
> checking the returned value of command {{ssh $hostIp ps -p $pid}} ) to
> determine whether the action is running or not.
> However, there are cases where oozie fails to connect to the host during
> action status check (e.g., the host is under heavy load, or network is bad
> etc.).
> In such cases, the return value of the command {{ssh $hostIp ps -p $pid}}
> will be 255 (ssh command exits with the exit status of the remote command or
> with 255 if an error occurred.).
> According the current logic of method {{getActionStatus()}} in
> {{SshActionExecutor}}, the action status will be determined as OK which may
> not be correct.
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