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https://issues.apache.org/jira/browse/HBASE-5521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13224888#comment-13224888
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Phabricator commented on HBASE-5521:
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heyongqiang has commented on the revision "HBASE-5521 [jira] Move
compression/decompression to an encoder specific encoding context".
@mbautin, i do not think we need to add a testcase for the new default
context classes, as they are covered by existing testcase/codes pretty well. i
will add more test cases after adding the new encoder type.
INLINE COMMENTS
src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileBlock.java:385 good
catch. i added that just for my debugging
REVISION DETAIL
https://reviews.facebook.net/D2097
> Move compression/decompression to an encoder specific encoding context
> ----------------------------------------------------------------------
>
> Key: HBASE-5521
> URL: https://issues.apache.org/jira/browse/HBASE-5521
> Project: HBase
> Issue Type: Improvement
> Reporter: He Yongqiang
> Assignee: He Yongqiang
> Attachments: HBASE-5521.1.patch, HBASE-5521.D2097.1.patch,
> HBASE-5521.D2097.2.patch, HBASE-5521.D2097.3.patch, HBASE-5521.D2097.4.patch,
> HBASE-5521.D2097.5.patch
>
>
> As part of working on HBASE-5313, we want to add a new columnar
> encoder/decoder. It makes sense to move compression to be part of
> encoder/decoder:
> 1) a scanner for a columnar encoded block can do lazy decompression to a
> specific part of a key value object
> 2) avoid an extra bytes copy from encoder to hblock-writer.
> If there is no encoder specified for a writer, the HBlock.Writer will use a
> default compression-context to do something very similar to today's code.
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