[HADOOP-9230] TestUniformSizeInputFormat fails intermittently

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.2-alpha
• Fix Version/s: 2.1.0-beta, 0.23.11
• Component/s: test
• Labels: distcp
• Target Version/s: 2.0.3-alpha
• Hadoop Flags: Reviewed
• Assignee: Karthik Kambatla
• Reporter: Karthik Kambatla
• Created: 18/Jan/13 19:18
• Updated: 03/Nov/14 18:33
• Resolved: 28/Feb/13 18:52

Description

TestUniformSizeFileInputFormat fails intermittently. I ran the test 50 times and noticed 5 failures.

Haven't noticed any particular pattern to which runs fail.

A sample stack trace is as follows:

java.lang.AssertionError: expected:<1944> but was:<1820>
        at org.junit.Assert.fail(Assert.java:91)
        at org.junit.Assert.failNotEquals(Assert.java:645)
        at org.junit.Assert.assertEquals(Assert.java:126)
        at org.junit.Assert.assertEquals(Assert.java:470)
        at org.junit.Assert.assertEquals(Assert.java:454)
        at org.apache.hadoop.tools.mapred.TestUniformSizeInputFormat.checkAgainstLegacy(TestUniformSizeInputFormat.java:244)
        at org.apache.hadoop.tools.mapred.TestUniformSizeInputFormat.testGetSplits(TestUniformSizeInputFormat.java:126)
        at org.apache.hadoop.tools.mapred.TestUniformSizeInputFormat.testGetSplits(TestUniformSizeInputFormat.java:252)