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https://issues.apache.org/jira/browse/HADOOP-16415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16881454#comment-16881454
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Steve Loughran commented on HADOOP-16415:
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tests which create data should do it in parallel where possible.
Note that the printed test times of junit reports seem to measure execution
time of the test case, not that of setup/teardown, so will underestimate delays
> Speed up S3A test runs
> ----------------------
>
> Key: HADOOP-16415
> URL: https://issues.apache.org/jira/browse/HADOOP-16415
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.3.0
> Reporter: Steve Loughran
> Priority: Major
>
> S3A Test runs are way too slow.
> Speed them by
> * reducing test setup/teardown costs
> * eliminating obsolete test cases
> * merge small tests into larger ones.
> One thing i see is that the main S3A test cases create and destroy new FS
> instances; There's both a setup and teardown cost there, but it does
> guarantee better isolation.
> Maybe if we know all test cases in a specific suite need the same options, we
> can manage that better; demand create the FS but only delete it in an
> @Afterclass method. That'd give us the OO-inheritance based setup of tests,
> but mean only one instance is done per suite
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