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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GIRAPH-522) JMap Dumper
Date Sun, 17 Feb 2013 22:41:12 GMT

    [ https://issues.apache.org/jira/browse/GIRAPH-522?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13580314#comment-13580314
] 

Hudson commented on GIRAPH-522:
-------------------------------

Integrated in Giraph-trunk-Commit #742 (See [https://builds.apache.org/job/Giraph-trunk-Commit/742/])
    GIRAPH-522: JMap Dumper (nitay) (Revision 06d64a29dcea6e10d22165f80300e007eb9d000a)

     Result = SUCCESS
nitay : http://git-wip-us.apache.org/repos/asf?p=giraph.git&a=commit&h=06d64a29dcea6e10d22165f80300e007eb9d000a
Files : 
* CHANGELOG
* giraph-core/src/main/java/org/apache/giraph/utils/JMap.java
* giraph-core/src/main/java/org/apache/giraph/conf/GiraphConfiguration.java
* giraph-core/src/main/java/org/apache/giraph/utils/JMapHistoDumper.java
* giraph-core/src/main/java/org/apache/giraph/graph/GraphTaskManager.java
* giraph-core/src/main/java/org/apache/giraph/conf/GiraphConstants.java
* giraph-core/src/main/java/org/apache/giraph/master/BspServiceMaster.java
* giraph-core/src/main/java/org/apache/giraph/worker/BspServiceWorker.java

                
> JMap Dumper
> -----------
>
>                 Key: GIRAPH-522
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-522
>             Project: Giraph
>          Issue Type: Bug
>            Reporter: Nitay Joffe
>            Assignee: Nitay Joffe
>         Attachments: GIRAPH-522.patch
>
>
> We've been using this for our jobs for a while now and figured we would contribute it
back. This is an observer for both worker and master (in other words for every node) that
periodically dumps the output of "jmap -histo". This has been very handy for us in debugging
memory issues and seeing what allocations are happening.

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