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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14061) Support CF-level Storage Policy
Date Wed, 11 Jan 2017 07:37:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14061?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15817527#comment-15817527
] 

Hudson commented on HBASE-14061:
--------------------------------

FAILURE: Integrated in Jenkins build HBase-Trunk_matrix #2297 (See [https://builds.apache.org/job/HBase-Trunk_matrix/2297/])
HBASE-14061 Support CF-level Storage Policy (addendum) (liyu: rev 36eeb2c569c574b299f8628bed6b8dd20fb900e2)
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HStore.java
* (edit) hbase-server/src/test/java/org/apache/hadoop/hbase/mapreduce/TestHFileOutputFormat2.java
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/fs/HFileSystem.java
* (edit) hbase-common/src/main/java/org/apache/hadoop/hbase/util/ReflectionUtils.java
* (edit) hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionFileSystem.java
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFileWriter.java
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionFileSystem.java


> Support CF-level Storage Policy
> -------------------------------
>
>                 Key: HBASE-14061
>                 URL: https://issues.apache.org/jira/browse/HBASE-14061
>             Project: HBase
>          Issue Type: Sub-task
>          Components: HFile, regionserver
>         Environment: hadoop-2.6.0
>            Reporter: Victor Xu
>            Assignee: Yu Li
>             Fix For: 2.0.0
>
>         Attachments: HBASE-14061-master-v1.patch, HBASE-14061.addendum.patch, HBASE-14061.addendum.patch,
HBASE-14061.v2.patch, HBASE-14061.v3.patch, HBASE-14061.v4.patch
>
>
> After reading [HBASE-12848|https://issues.apache.org/jira/browse/HBASE-12848] and [HBASE-12934|https://issues.apache.org/jira/browse/HBASE-12934],
I wrote a patch to implement cf-level storage policy. 
> My main purpose is to improve random-read performance for some really hot data, which
usually locates in certain column family of a big table.
> Usage:
> $ hbase shell
> > alter 'TABLE_NAME', METADATA => {'hbase.hstore.block.storage.policy' => 'POLICY_NAME'}
> > alter 'TABLE_NAME', {NAME=>'CF_NAME', METADATA => {'hbase.hstore.block.storage.policy'
=> 'POLICY_NAME'}}
> HDFS's setStoragePolicy can only take effect when new hfile is created in a configured
directory, so I had to make sub directories(for each cf) in region's .tmp directory and set
storage policy for them.
> Besides, I had to upgrade hadoop version to 2.6.0 because dfs.getStoragePolicy cannot
be easily written in reflection, and I needed this api to finish my unit test.



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