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Posted to issues@hbase.apache.org by "Benoit Sigoure (Updated) (JIRA)" <ji...@apache.org> on 2011/11/06 05:04:51 UTC
[jira] [Updated] (HBASE-4752) Don't create an unnecessary
LinkedList when evicting from the BlockCache
[ https://issues.apache.org/jira/browse/HBASE-4752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Benoit Sigoure updated HBASE-4752:
----------------------------------
Status: Patch Available (was: Open)
> 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: Benoit Sigoure
> Priority: Minor
> Attachments: 0001-HBASE-4752-Don-t-create-an-unnecessary-LinkedList-wh.patch
>
>
> 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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