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https://issues.apache.org/jira/browse/HADOOP-6735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12862381#action_12862381
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Konstantin Boudnik commented on HADOOP-6735:
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Fault injection tests are valuable part of the hadoop testing. E.g. it allowed
to find many problems in HDFS' append feature. Yes, the compilation time is
slightly increases but compare to the runtime of all the tests it barely adds a
percent or less.
Having an optional flag to switch some testing on/off is almost a guarantee
that this testing will never be run by anyone.
Besides, FI tests are only part of 'test-core' target. You can avoid running it
by starting 'ant run-test-core' instead of 'ant test'
> Remove fault injection compilation from default ant compilation and ant
> test-core.
> ----------------------------------------------------------------------------------
>
> Key: HADOOP-6735
> URL: https://issues.apache.org/jira/browse/HADOOP-6735
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Ravi Phulari
>
> Compiling fault-injection code while running ant tests increases test time by
> considerable amount of time. It would be great if by default fi code is not
> compiled every time ant tests are run.
> We should add flag to run fault injection code on demand.
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