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From: "Nick Dimiduk (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HBASE-8324)
 TestHFileOutputFormat.testMRIncremental* fails against hadoop2 profile
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    [ https://issues.apache.org/jira/browse/HBASE-8324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13630245#comment-13630245 ] 

Nick Dimiduk commented on HBASE-8324:
-------------------------------------

{noformat}
+    // Tests were failing due to MAPREDUCE-4880 / MAPREDUCE-4607 against hadoop 2.0.2-alpha and
+    // this avoids the problem by disabling speculative task execution in tests.
+    conf.setBoolean("mapreduce.map.speculative", false);
+    conf.setBoolean("mapreduce.reduce.speculative", false);
+    ////
{noformat}

Please TODO in this comment or file a new ticket to remove this configuration tweak after the issue is resolved upstream. I don't want one-offs like this to become lost and forgotten.
                
> TestHFileOutputFormat.testMRIncremental* fails against hadoop2 profile
> ----------------------------------------------------------------------
>
>                 Key: HBASE-8324
>                 URL: https://issues.apache.org/jira/browse/HBASE-8324
>             Project: HBase
>          Issue Type: Sub-task
>          Components: hadoop2, test
>    Affects Versions: 0.95.0
>            Reporter: Jonathan Hsieh
>            Assignee: Jonathan Hsieh
>             Fix For: 0.98.0, 0.95.1
>
>         Attachments: hbase-8324.hadoop2.patch, hbase-8324.v2.patch
>
>
> Two tests cases are failing:
> testMRIncrementalLoad, testMRIncrementalloadWithSplit
> {code}
> <testcase time="33.942" classname="org.apache.hadoop.hbase.mapreduce.TestHFileOutputFormat" name="testMRIncrementalLoad">
>     <failure type="java.lang.AssertionError">java.lang.AssertionError
>         at org.junit.Assert.fail(Assert.java:86)
>         at org.junit.Assert.assertTrue(Assert.java:41)
>         at org.junit.Assert.assertTrue(Assert.java:52)
>         at org.apache.hadoop.hbase.mapreduce.TestHFileOutputFormat.runIncrementalPELoad(TestHFileOutputFormat.java:468)
>         at org.apache.hadoop.hbase.mapreduce.TestHFileOutputFormat.doIncrementalLoadTest(TestHFileOutputFormat.java:378)
>         at org.apache.hadoop.hbase.mapreduce.TestHFileOutputFormat.testMRIncrementalLoad(TestHFileOutputFormat.java:348)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> ...
>   <testcase time="34.324" classname="org.apache.hadoop.hbase.mapreduce.TestHFileOutputFormat" name="testMRIncrementalLoadWithSplit">
>     <failure type="java.lang.AssertionError">java.lang.AssertionError
>         at org.junit.Assert.fail(Assert.java:86)
>         at org.junit.Assert.assertTrue(Assert.java:41)
>         at org.junit.Assert.assertTrue(Assert.java:52)
>         at org.apache.hadoop.hbase.mapreduce.TestHFileOutputFormat.runIncrementalPELoad(TestHFileOutputFormat.java:468)
>         at org.apache.hadoop.hbase.mapreduce.TestHFileOutputFormat.doIncrementalLoadTest(TestHFileOutputFormat.java:378)
>         at org.apache.hadoop.hbase.mapreduce.TestHFileOutputFormat.testMRIncrementalLoadWithSplit(TestHFileOutputFormat.java:354)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         ...
> {code}

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