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From "Pavan Kumar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (GIRAPH-842) option to dump histogram of memory usage when heap is low on memory
Date Mon, 03 Feb 2014 19:35:05 GMT

     [ https://issues.apache.org/jira/browse/GIRAPH-842?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pavan Kumar updated GIRAPH-842:
-------------------------------

    Attachment: master-stderr
                worker-stderr

attaching stderr files from a worker and master to show how the histogram dump looks like
(and also see that the code actually works)

> option to dump histogram of memory usage when heap is low on memory
> -------------------------------------------------------------------
>
>                 Key: GIRAPH-842
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-842
>             Project: Giraph
>          Issue Type: Bug
>            Reporter: Pavan Kumar
>            Assignee: Pavan Kumar
>            Priority: Minor
>         Attachments: GIRAPH-842.patch, master-stderr, worker-stderr
>
>
> Currently we are left in blind for jobs that OOM, it would be helpful if we can do a
jmap -histo dump when heap has very little free space left.



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