Peter Cseh commented on OOZIE-3183:

Improving logging is always a good idea. Also Oracle's documentation of 
waitFor() states that it uses exitCode() by default, but it should be improved 
by the native implementations.

> Better logging for SshActionExecutor and extended HA capability when calling 
> to remote host
> -------------------------------------------------------------------------------------------
>                 Key: OOZIE-3183
>                 URL: https://issues.apache.org/jira/browse/OOZIE-3183
>             Project: Oozie
>          Issue Type: Improvement
>          Components: action
>    Affects Versions: 5.0.0b1
>            Reporter: Andras Piros
>            Assignee: Andras Piros
>            Priority: Major
>             Fix For: 5.0.0
>         Attachments: OOZIE-3183.001.patch
> In some High Availability environments, when an SSH action's 
> {{SshActionExecutor#start()}} runs on another node than 
> {{SshActionExecutor#check()}}, it can happen that due to network bandwidth 
> reasons calling {{Process#exitValue()}} is not enough - but calling 
> {{Process#waitFor()}} is better.
> Also, for better error root cause analysis, enhance logging along 
> {{SshActionExecutor}} for the critical parts.

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