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https://issues.apache.org/jira/browse/HBASE-4448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13114526#comment-13114526
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Jesse Yates commented on HBASE-4448:
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Not that I don't think this is good stuff Doug, I'm on board with a majority of
the code. It's just that I think some review/discussion on the design and
implementation would be good.
> HBaseTestingUtilityFactory - pattern for re-using HBaseTestingUtility
> instances across unit tests
> -------------------------------------------------------------------------------------------------
>
> Key: HBASE-4448
> URL: https://issues.apache.org/jira/browse/HBASE-4448
> Project: HBase
> Issue Type: Improvement
> Reporter: Doug Meil
> Assignee: Doug Meil
> Priority: Minor
> Attachments: HBaseTestingUtilityFactory.java,
> hbase_hbaseTestingUtility_uses_2011_09_22.xlsx, java_HBASE_4448.patch
>
>
> Setting up and tearing down HBaseTestingUtility instances in unit tests is
> very expensive. On my MacBook it takes about 10 seconds to set up a
> MiniCluster, and 7 seconds to tear it down. When multiplied by the number of
> test classes that use this facility, that's a lot of time in the build.
> This factory assumes that the JVM is being re-used across test classes in the
> build, otherwise this pattern won't work.
> I don't think this is appropriate for every use, but I think it can be
> applicable in a great many cases - especially where developers just want a
> simple MiniCluster with 1 slave.
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