hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Phabricator (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-5469) Add baseline compression efficiency to DataBlockEncodingTool
Date Wed, 21 Mar 2012 23:44:23 GMT

     [ https://issues.apache.org/jira/browse/HBASE-5469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Phabricator updated HBASE-5469:
-------------------------------

    Attachment: D2409.1.patch

mbautin requested code review of "[jira] [HBASE-5469] Add baseline compression efficiency
to DataBlockEncodingTool".
Reviewers: JIRA, dhruba, tedyu, stack

  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.

TEST PLAN
  * Run unit tests.
  * Run DataBlockEncodingTool on a variety of real-world HFiles.

REVISION DETAIL
  https://reviews.facebook.net/D2409

AFFECTED FILES
  src/main/java/org/apache/hadoop/hbase/io/encoding/BufferedDataBlockEncoder.java
  src/main/java/org/apache/hadoop/hbase/io/encoding/CopyKeyDataBlockEncoder.java
  src/main/java/org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.java
  src/main/java/org/apache/hadoop/hbase/io/encoding/DiffKeyDeltaEncoder.java
  src/main/java/org/apache/hadoop/hbase/io/encoding/EncodedDataBlock.java
  src/main/java/org/apache/hadoop/hbase/io/encoding/FastDiffDeltaEncoder.java
  src/main/java/org/apache/hadoop/hbase/io/encoding/PrefixKeyDeltaEncoder.java
  src/main/java/org/apache/hadoop/hbase/io/hfile/HFileBlock.java
  src/main/java/org/apache/hadoop/hbase/io/hfile/HFileDataBlockEncoderImpl.java
  src/test/java/org/apache/hadoop/hbase/io/encoding/TestDataBlockEncoders.java
  src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileBlock.java
  src/test/java/org/apache/hadoop/hbase/regionserver/DataBlockEncodingTool.java
  src/test/java/org/apache/hadoop/hbase/regionserver/EncodedSeekPerformanceTest.java

MANAGE HERALD DIFFERENTIAL RULES
  https://reviews.facebook.net/herald/view/differential/

WHY DID I GET THIS EMAIL?
  https://reviews.facebook.net/herald/transcript/5403/

Tip: use the X-Herald-Rules header to filter Herald messages in your client.

                
> 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.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message