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https://issues.apache.org/jira/browse/MAPREDUCE-6234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14301947#comment-14301947
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Masatake Iwasaki commented on MAPREDUCE-6234:
---------------------------------------------
The cause of the test failure is the change of default value of
{{mapreduce.map.memory.mb}} and {{mapreduce.reduce.memory.mb}} by
MAPREDUCE-5785. Though the default value defined in mapred-default.xml from
1024 to -1 (which means turning on auto deriving from the value of -Xmx in
java.opts), {{MRJobConfig.DEFAULT_MAP_MEMORY_MB}} and
{{MRJobConfig.DEFAULT_REDUCE_MEMORY_MB}} are still 1024. Those are used in a
few place such as the test in Gridmix.
> TestHighRamJob fails
> --------------------
>
> Key: MAPREDUCE-6234
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6234
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/gridmix
> Reporter: Masatake Iwasaki
> Assignee: Masatake Iwasaki
> Attachments: MAPREDUCE-6234.001.patch
>
>
> {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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