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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11007) BLOCKCACHE in schema descriptor seems not aptly named
Date Wed, 21 May 2014 04:30:43 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11007?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14004329#comment-14004329
] 

Hudson commented on HBASE-11007:
--------------------------------

SUCCESS: Integrated in HBase-0.98 #309 (See [https://builds.apache.org/job/HBase-0.98/309/])
HBASE-11007 BLOCKCACHE in schema descriptor seems not aptly named; REVERT (stack: rev 1595942)
* /hbase/branches/0.98/hbase-client/src/main/java/org/apache/hadoop/hbase/HColumnDescriptor.java
* /hbase/branches/0.98/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/CacheConfig.java
* /hbase/branches/0.98/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/CacheStats.java
* /hbase/branches/0.98/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestForceCacheImportantBlocks.java
HBASE-11007 BLOCKCACHE in schema descriptor seems not aptly named (stack: rev 1595939)
* /hbase/branches/0.98/hbase-client/src/main/java/org/apache/hadoop/hbase/HColumnDescriptor.java
* /hbase/branches/0.98/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/CacheConfig.java
* /hbase/branches/0.98/hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/CacheStats.java
* /hbase/branches/0.98/hbase-server/src/test/java/org/apache/hadoop/hbase/io/hfile/TestForceCacheImportantBlocks.java


> BLOCKCACHE in schema descriptor seems not aptly named
> -----------------------------------------------------
>
>                 Key: HBASE-11007
>                 URL: https://issues.apache.org/jira/browse/HBASE-11007
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.94.19
>            Reporter: Varun Sharma
>            Assignee: Varun Sharma
>            Priority: Minor
>             Fix For: 0.99.0
>
>         Attachments: 11007.txt, 11007v2.txt
>
>
> Hi,
> It seems that setting BLOCKCACHE key to false will disable the Data blocks from being
cached but will continue to cache bloom and index blocks. This same property seems to be called
cacheDataOnRead inside CacheConfig.
> Should this be called CACHE_DATA_ON_READ instead of BLOCKCACHE similar to the other CACHE_DATA_ON_WRITE/CACHE_INDEX_ON_WRITE.
We got quite confused and ended up adding our own property CACHE_DATA_ON_READ - we also added
some unit tests for the same.
> What do folks think about this ?
> Thanks
> Varun



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