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https://issues.apache.org/jira/browse/HBASE-7921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13587557#comment-13587557
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Andrew Purtell commented on HBASE-7921:
---------------------------------------
bq. Does this bring on test failures Andrew?
Yes, but only if the native Hadoop library (thus native gzip codec) is loaded.
I tripped over this when running the unit test suite with the native libraries
available (as part of testing for HBASE-7544).
> TestHFileBlock.testGzipCompression should ignore the block checksum
> -------------------------------------------------------------------
>
> Key: HBASE-7921
> URL: https://issues.apache.org/jira/browse/HBASE-7921
> Project: HBase
> Issue Type: Bug
> Components: test
> Affects Versions: 0.96.0
> Reporter: Andrew Purtell
> Assignee: Andrew Purtell
> Priority: Minor
> Attachments: 7921.patch
>
>
> TestHFileBlock.createTestBlockStr can change the gzip header after the block
> is produced. The OS field can be set to 0 on Linux or Mac if the native gzip
> codec is available and is used, but the test code then resets it to 3. When
> comparing the resulting block the checksum should be ignored.
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