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https://issues.apache.org/jira/browse/HBASE-24127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17077278#comment-17077278
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Josh Elser commented on HBASE-24127:
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I couldn't tell you why it is the way it is, just that it's been this way since
Hadoop 2.6 times :)
> Switch to `RawLocalFileSystem` as default FS for tests
> ------------------------------------------------------
>
> Key: HBASE-24127
> URL: https://issues.apache.org/jira/browse/HBASE-24127
> Project: HBase
> Issue Type: Test
> Components: test
> Reporter: Nick Dimiduk
> Priority: Major
>
> In the PR discussion on HBASE-24106, [~elserj]
> [mentioned|https://github.com/apache/hbase/pull/1422#discussion_r403789851]
> that another project has had success with switching its unit test suite to
> use {{RawLocalFileSystem}} from {{LocalFileSystem}}. This is discussed in the
> context of the availability of the {{hsync}} and {{hflush}} stream
> capabilities, which are not available on {{LocalFileSystem}}.
> Perhaps we should also consider doing the same for our default {{standalone}}
> user experience. I don't know if doing so should be a separate task from this
> one, or if completing one is effectively performing the implementation for
> the other.
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