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Posted to issues@hbase.apache.org by "Andrew Purtell (JIRA)" <ji...@apache.org> on 2015/09/23 03:31:05 UTC
[jira] [Assigned] (HBASE-12748) RegionCoprocessorHost.execOperation
creates too many iterator objects
[ https://issues.apache.org/jira/browse/HBASE-12748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrew Purtell reassigned HBASE-12748:
--------------------------------------
Assignee: Andrew Purtell (was: Vladimir Rodionov)
> RegionCoprocessorHost.execOperation creates too many iterator objects
> ---------------------------------------------------------------------
>
> Key: HBASE-12748
> URL: https://issues.apache.org/jira/browse/HBASE-12748
> Project: HBase
> Issue Type: Sub-task
> Affects Versions: 0.94.25, 0.98.9
> Reporter: Vladimir Rodionov
> Assignee: Andrew Purtell
> Fix For: 2.0.0, 1.3.0, 0.98.15
>
> Attachments: HBase-12748.patch
>
>
> This is typical pattern of enhanced for ... loop usage in a hot code path. For every HBase operation it instantiates iterator for coprocessor list twice.
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