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https://issues.apache.org/jira/browse/OOZIE-3156?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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TIAN XING updated OOZIE-3156:
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Attachment: OOZIE-3156-v1.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: 5.0.0
> Reporter: TIAN XING
> Assignee: TIAN XING
> Priority: Major
> Attachments: OOZIE-3156-v1.patch, ssh-check-bug.patch
>
>
> When {{check()}} method of {{SshActionExecutor}} gets invoked, oozie will ssh
> connect to the host and check whether the pid of the process that ssh action
> started is still there (by checking the returned value of command "{{ssh
> <host-ip> ps -p <pid>}}" ) to determine whether ssh action completes or not.
> However, we found cases where oozie fails to connect to 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 command "{{ssh <host-ip> 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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