Andras Piros created OOZIE-3183:

             Summary: Better logging for SshActionExecutor and extended HA 
capability when calling to remote host
                 Key: OOZIE-3183
             Project: Oozie
          Issue Type: Improvement
          Components: action
    Affects Versions: 5.0.0b1
            Reporter: Andras Piros
            Assignee: Andras Piros
             Fix For: 5.0.0

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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