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https://issues.apache.org/jira/browse/TEZ-2339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14544327#comment-14544327
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Hitesh Shah commented on TEZ-2339:
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Is this still an issue?
> randomwriter generates sequence file which does not have "SEQ6" in the
> beginning (causes exceptions while reading)
> ------------------------------------------------------------------------------------------------------------------
>
> Key: TEZ-2339
> URL: https://issues.apache.org/jira/browse/TEZ-2339
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Rajesh Balamohan
>
> Scenario:
> =======
> yarn jar ./dist/tez/tez-tests-0.7.0-SNAPSHOT.jar randomwriter
> "-Dmapreduce.randomwriter.totalbytes=10000000"
> "-Dmapreduce.framework.name=yarn-tez" /user/rajesh/tez-test-rw/
> Job finishes, however the data generated by the above command does not have
> "SEQ6" which is needed for reading back the data. It contains some garbage
> values like "99,51,32,102" instead of "83,69,81,6" (SEQ6) . This causes
> exceptions while reading back the data.
> For e.g
> yarn jar ./dist/tez/tez-tests-0.7.0-SNAPSHOT.jar sort
> "-Dmapreduce.framework.name=yarn-tez" -r 10 /user/rajesh/tez-test-rw/
> /user/rajesh/tez-test-rw-sort/
> would fail (exception at org.apache.hadoop.io.SequenceFile$Reader.init)
> reading the data from /user/rajesh/tez-test-rw/
> This is observed even in 0.5.4 branch. Haven't checked in branch 0.4
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