Mehakmeet Singh created HADOOP-18633:
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Summary: fix test
AbstractContractDistCpTest#testDistCpUpdateCheckFileSkip
Key: HADOOP-18633
URL: https://issues.apache.org/jira/browse/HADOOP-18633
Project: Hadoop Common
Issue Type: Bug
Components: tools/distcp
Reporter: Mehakmeet Singh
Assignee: Mehakmeet Singh
In the newly introduced test testDistCpUpdateCheckFileSkip, for the first pass
of "distcp -update", target file should not be present so that the copy takes
place and creates the target file.
Currently, we create both the source and target file with same block size from
the start which can lead to flakiness due to race condition causing the
modification time of the target file to be greater than/equal to the source and
not copy the file at all. This can be seen more in the TestLocalContractDistCp
due to no remote calls to create the target.
{code:java}
java.lang.AssertionError: Mismatch in COPY counter value expected:<1> but
was:<0>
at org.junit.Assert.fail(Assert.java:89)
at org.junit.Assert.failNotEquals(Assert.java:835)
at org.junit.Assert.assertEquals(Assert.java:647)
at
org.apache.hadoop.tools.contract.AbstractContractDistCpTest.verifySkipAndCopyCounter(AbstractContractDistCpTest.java:1000)
at
org.apache.hadoop.tools.contract.AbstractContractDistCpTest.testDistCpUpdateCheckFileSkip(AbstractContractDistCpTest.java:919)
{code}
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