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From Abhijeet Apsunde <Abhijeet_Apsu...@persistent.co.in>
Subject Intermittent test errors in Hadoop-hdfs project
Date Wed, 25 Dec 2013 13:38:19 GMT
Hi all,

I'm running Junit tests suite for Hadoop-hdfs project, however none of 3 run attempts could
complete successfully.
There were random test failing due to some error and one consistent failure.

I believe one consistently broken test is due to following change, since corresponding "editsStored"
binary file is not checked in with modified "editsStored.xml" file in this particular revision.
###############################
Revision: 1552841
Author: cmccabe
Date: Saturday, December 21, 2013 4:57:20 AM
Message:
HDFS-5636. Enforce a max TTL per cache pool (awang via cmccabe)
----
.
.
Modified : /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/resources/editsStored.xml
.
###############################

'Tests in error' passed successfully when ran separately. Test results snippet for all 3 runs
is attached at the end of this mail.
I would like to know if others also have noted similar observation or there's something wrong
with my setup.
If it's a common behaviour how does apache CI handles such scenarios while testing a patch?

Thanks,
Abhijeet.





______________________Test results snippets ________________________

Run1
Failed tests:
  TestOfflineEditsViewer.testStored:193 Reference XML edits and parsed to XML should be same

Tests in error:
  TestHDFSFileSystemContract.setUp:39 » IO Failed to save in any storage directo...
  TestDatanodeReport.testDatanodeReport:48 » InconsistentFSState Directory /home...
#######################
Run2
Failed tests:
  TestOfflineEditsViewer.testStored:193 Reference XML edits and parsed to XML should be same

Tests in error:
  TestLeaseRecovery.testBlockSynchronization:80 » IO NameNode is not formatted.
  TestDataNodeVolumeFailureToleration.setUp:71 » IO Timed out waiting for Mini H...
  TestDataNodeVolumeFailureToleration.tearDown:83 NullPointer
#######################
Run 3
Failed tests:
  TestOfflineEditsViewer.testStored:193 Reference XML edits and parsed to XML should be same

Tests in error:
  TestAppendDifferentChecksum.setupCluster:52 » IO Cannot lock storage /home/abh...
  TestFileAppend3.testTC12 » Remote No lease on /TC12/foo: File is not open for ...
  TestHDFSFileSystemContract.setUp:39 » InconsistentFSState Directory /home/abhi...
######################


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