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https://issues.apache.org/jira/browse/MAPREDUCE-1753?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinay Kumar Thota updated MAPREDUCE-1753:
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Attachment: 1753-ydist-security.patch
- once a DaemonProcess in question is suspended (i.e. its VM is effectively
suspended) will you be able to resume it via a method invocation in a class
running on that VM? I haven't verified it but something tells me that it won't
work.
Actually I am not suspending the daemonprocess. I am just suspending the task
attempt process id that is running on separate JVM. So, in this case we can
suspend and resume the task attempt process without any issues. However, I have
written those methods in more generic manner and keeping them in DameonCluster
for utilizing other purposes.
- instead of returning 0 and 1 (??) return boolean
I used the integer value because of exitcode format.Usually if you run a
command and if it is not successful then return some exitcode right.I followed
the same case here.
- property name test.system.task.resume.cmd isn't consistent with the rest of
properties from system-test.xml. Also, the default has to be added to
system-test.xml and documented properly.
- same for @return not @ return
- as usual, missing descriptions of @throws
Done
Uploaded the latest patch by addressing the given comments.
> Implement a functionality for suspend and resume the process.
> -------------------------------------------------------------
>
> Key: MAPREDUCE-1753
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1753
> Project: Hadoop Map/Reduce
> Issue Type: Task
> Components: test
> Reporter: Vinay Kumar Thota
> Assignee: Vinay Kumar Thota
> Attachments: 1753-ydist-security.patch, 1753-ydist-security.patch,
> daemonprotocolaspect.patch
>
>
> Adding two methods in DaemonProtocolAspect.aj for suspend and resume the
> process.
> public int DaemonProtocol.resumeProcess(String pid) throws IOException;
> public int DaemonProtocol.suspendProcess(String pid) throws IOException;
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