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Date: Thu, 5 Aug 2010 05:04:17 -0400 (EDT)
From: "Hong Tang (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Subject: [jira] Commented: (MAPREDUCE-1253) Making Mumak work with
 Capacity-Scheduler
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-1253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12895621#action_12895621 ] 

Hong Tang commented on MAPREDUCE-1253:
--------------------------------------

Both test-patch and mumak unit tests pass on my local machine (I forgot to copy the console output of test-patch results).

{noformat}
test:
     [echo] contrib: mumak
   [delete] Deleting directory /grid/0/htang/hadoop-mapreduce/build/contrib/mumak/test/logs
    [mkdir] Created dir: /grid/0/htang/hadoop-mapreduce/build/contrib/mumak/test/logs
    [junit] WARNING: multiple versions of ant detected in path for junit
    [junit]          jar:file:/homes/htang/installed/ant/lib/ant.jar!/org/apache/tools/ant/Project.class
    [junit]      and jar:file:/homes/htang/.ivy2/cache/ant/ant/jars/ant-1.6.5.jar!/org/apache/tools/ant/Project.class
    [junit] Running org.apache.hadoop.mapred.TestRemoveIpsFromLoggedNetworkTopology
    [junit] Tests run: 2, Failures: 0, Errors: 0, Time elapsed: 0.586 sec
    [junit] Running org.apache.hadoop.mapred.TestSimulatorDeterministicReplay
    [junit] Tests run: 1, Failures: 0, Errors: 0, Time elapsed: 38.469 sec
    [junit] Running org.apache.hadoop.mapred.TestSimulatorEndToEnd
    [junit] Tests run: 1, Failures: 0, Errors: 0, Time elapsed: 107.055 sec
    [junit] Running org.apache.hadoop.mapred.TestSimulatorEngine
    [junit] Tests run: 2, Failures: 0, Errors: 0, Time elapsed: 0.162 sec
    [junit] Running org.apache.hadoop.mapred.TestSimulatorEventQueue
    [junit] Tests run: 4, Failures: 0, Errors: 0, Time elapsed: 0.02 sec
    [junit] Running org.apache.hadoop.mapred.TestSimulatorJobClient
    [junit] Tests run: 1, Failures: 0, Errors: 0, Time elapsed: 0.063 sec
    [junit] Running org.apache.hadoop.mapred.TestSimulatorJobTracker
    [junit] Tests run: 1, Failures: 0, Errors: 0, Time elapsed: 2.123 sec
    [junit] Running org.apache.hadoop.mapred.TestSimulatorSerialJobSubmission
    [junit] Tests run: 1, Failures: 0, Errors: 0, Time elapsed: 139.603 sec
    [junit] Running org.apache.hadoop.mapred.TestSimulatorStressJobSubmission
    [junit] Tests run: 1, Failures: 0, Errors: 0, Time elapsed: 100.492 sec
    [junit] Running org.apache.hadoop.mapred.TestSimulatorTaskTracker
    [junit] Tests run: 11, Failures: 0, Errors: 0, Time elapsed: 0.397 sec
{noformat}

> Making Mumak work with Capacity-Scheduler
> -----------------------------------------
>
>                 Key: MAPREDUCE-1253
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1253
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: contrib/mumak
>    Affects Versions: 0.21.0, 0.22.0
>            Reporter: Anirban Dasgupta
>            Assignee: Anirban Dasgupta
>         Attachments: MAPREDUCE-1253-20100406.patch, MAPREDUCE-1253-20100726-2.patch, MAPREDUCE-1253-20100804.patch
>
>   Original Estimate: 672h
>  Remaining Estimate: 672h
>
> In order to make the capacity-scheduler work in the mumak simulation environment, we have to replace the job-initialization threads of the capacity scheduler with classes that perform event-based initialization. We propose to use aspectj to disable the threads  of the JobInitializationPoller class used by the Capacity Scheduler, and then perform the corresponding initialization tasks through a simulation job-initialization class that receives periodic wake-up calls from the simulator engine.

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