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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4026) Lower minimum-allocation-mb to sensible defaults
Date Fri, 20 Apr 2012 12:36:40 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13258185#comment-13258185
] 

Hadoop QA commented on MAPREDUCE-4026:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12523483/MAPREDUCE-4026.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    -1 core tests.  The patch failed these unit tests:
                  org.apache.hadoop.yarn.server.TestContainerManagerSecurity
                  org.apache.hadoop.yarn.server.resourcemanager.security.TestApplicationTokens
                  org.apache.hadoop.yarn.server.resourcemanager.TestClientRMService
                  org.apache.hadoop.yarn.server.resourcemanager.resourcetracker.TestNMExpiry
                  org.apache.hadoop.yarn.server.resourcemanager.TestAMAuthorization
                  org.apache.hadoop.yarn.server.resourcemanager.TestFifoScheduler
                  org.apache.hadoop.yarn.server.resourcemanager.TestApplicationACLs
                  org.apache.hadoop.mapred.TestClientRedirect
                  org.apache.hadoop.mapreduce.security.TestJHSSecurity

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2260//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2260//console

This message is automatically generated.
                
> Lower minimum-allocation-mb to sensible defaults
> ------------------------------------------------
>
>                 Key: MAPREDUCE-4026
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4026
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2, scheduler
>    Affects Versions: 2.0.0
>            Reporter: Harsh J
>            Assignee: Harsh J
>         Attachments: MAPREDUCE-4026.patch
>
>
> The CapacityScheduler's minimum-allocation-mb is set to 1024.
> The FIFO's minimum-allocation-mb meanwhile, is 128.
> I propose changing the formers' minimum to that amount as well. 1024 is way too much
as a default, wastes "slots" on NMs - and I also do not see why CS has to deviate that settings
from the FIFO default.

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