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https://issues.apache.org/jira/browse/HBASE-12748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Purtell updated HBASE-12748:
-----------------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 1.2.0
Status: Resolved (was: Patch Available)
Pushed to 0.98, branch-1.2, branch-1, and master.
I addressed the mentioned minor nit on commit.
Will revisit/revert if we find a clear perf regression when evaluating the next
0.98 RC.
> 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, 1.2.0, 1.3.0, 0.98.15
>
> Attachments: HBASE-12748.patch, HBASE-12748.patch, 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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