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https://issues.apache.org/jira/browse/HBASE-4752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13149394#comment-13149394
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Hudson commented on HBASE-4752:
-------------------------------
Integrated in HBase-TRUNK #2434 (See
[https://builds.apache.org/job/HBase-TRUNK/2434/])
HBASE-4752 Don't create an unnecessary LinkedList when evicting from the
BlockCache
tedyu :
Files :
*
/hbase/trunk/src/main/java/org/apache/hadoop/hbase/io/hfile/CachedBlockQueue.java
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/io/hfile/LruBlockCache.java
*
/hbase/trunk/src/test/java/org/apache/hadoop/hbase/io/hfile/TestCachedBlockQueue.java
> Don't create an unnecessary LinkedList when evicting from the BlockCache
> ------------------------------------------------------------------------
>
> Key: HBASE-4752
> URL: https://issues.apache.org/jira/browse/HBASE-4752
> Project: HBase
> Issue Type: Improvement
> Components: performance, regionserver
> Affects Versions: 0.90.4
> Reporter: Benoit Sigoure
> Assignee: Ted Yu
> Priority: Minor
> Fix For: 0.94.0
>
> Attachments:
> 0001-HBASE-4752-Don-t-create-an-unnecessary-LinkedList-wh.patch,
> 4752-trunk-v2.txt, 4752-trunk.txt
>
>
> When evicting from the BlockCache, the code creates a LinkedList containing
> every single block sorted by access time. This list is created from a
> PriorityQueue. I don't believe it is necessary, as the PriorityQueue can be
> used directly.
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