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https://issues.apache.org/jira/browse/MAPREDUCE-6234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14313148#comment-14313148
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Karthik Kambatla commented on MAPREDUCE-6234:
---------------------------------------------
Thanks for working on this, folks. As you might see in the description of the
config, it is kind of hard to pick a single value for DEFAULT_MAP_MEMORY_MB,
and the most appropriate value seemed 1024 since we fallback to that value. I
like Gera's proposal of adding a helper method to get the default value;
however, I wonder if that would just translate to calling
{{JobConf#getMemoryRequired}} on the default conf.
> MRJobConfig.DEFAULT_*_MEMORY_MB should be consistent with mapred-default.xml
> ----------------------------------------------------------------------------
>
> Key: MAPREDUCE-6234
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6234
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/gridmix, mrv2
> Reporter: Masatake Iwasaki
> Assignee: Masatake Iwasaki
> Attachments: MAPREDUCE-6234.001.patch, MAPREDUCE-6234.002.patch
>
>
> TestHighRamJob fails by this.
> {code}
> -------------------------------------------------------
> T E S T S
> -------------------------------------------------------
> Running org.apache.hadoop.mapred.gridmix.TestHighRamJob
> Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 1.162 sec <<<
> FAILURE! - in org.apache.hadoop.mapred.gridmix.TestHighRamJob
> testHighRamFeatureEmulation(org.apache.hadoop.mapred.gridmix.TestHighRamJob)
> Time elapsed: 1.102 sec <<< FAILURE!
> java.lang.AssertionError: expected:<1024> but was:<-1>
> at org.junit.Assert.fail(Assert.java:88)
> at org.junit.Assert.failNotEquals(Assert.java:743)
> at org.junit.Assert.assertEquals(Assert.java:118)
> at org.junit.Assert.assertEquals(Assert.java:555)
> at org.junit.Assert.assertEquals(Assert.java:542)
> at
> org.apache.hadoop.mapred.gridmix.TestHighRamJob.testHighRamConfig(TestHighRamJob.java:98)
> at
> org.apache.hadoop.mapred.gridmix.TestHighRamJob.testHighRamFeatureEmulation(TestHighRamJob.java:117)
> {code}
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