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https://issues.apache.org/jira/browse/HBASE-5469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13235241#comment-13235241
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Phabricator commented on HBASE-5469:
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tedyu has accepted the revision "[jira] [HBASE-5469] Add baseline compression
efficiency to DataBlockEncodingTool".
It would be nice to attach sample output from DataBlockEncodingTool to JIRA.
INLINE COMMENTS
src/main/java/org/apache/hadoop/hbase/io/encoding/EncodedDataBlock.java:53
Nice catch.
src/main/java/org/apache/hadoop/hbase/io/encoding/EncodedDataBlock.java:150
Nice.
src/main/java/org/apache/hadoop/hbase/io/encoding/EncodedDataBlock.java:166
This doesn't match the actual parameter name.
src/main/java/org/apache/hadoop/hbase/io/encoding/EncodedDataBlock.java:183
Where is cachedEncodedData invalidated ?
REVISION DETAIL
https://reviews.facebook.net/D2409
BRANCH
add_baseline_compression_efficiency_to_HBASE-5469_v5
> Add baseline compression efficiency to DataBlockEncodingTool
> ------------------------------------------------------------
>
> Key: HBASE-5469
> URL: https://issues.apache.org/jira/browse/HBASE-5469
> Project: HBase
> Issue Type: Improvement
> Reporter: Mikhail Bautin
> Assignee: Mikhail Bautin
> Priority: Minor
> Attachments: D2409.1.patch
>
>
> DataBlockEncodingTool currently does not provide baseline compression
> efficiency, e.g. Hadoop compression codec applied to unencoded data. E.g. if
> we are using LZO to compress blocks, we would like to have the following
> columns in the report (possibly as percentages of raw data size).
> Baseline K+V in blockcache | Baseline K + V on disk (LZO compressed) | K
> + V DataBlockEncoded in block cache | K + V DataBlockEncoded +
> LZOCompressed (on disk)
> Background: we never store compressed blocks in cache, but we always store
> encoded data blocks in cache if data block encoding is enabled for the column
> family.
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