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https://issues.apache.org/jira/browse/HBASE-12748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14908925#comment-14908925
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Hudson commented on HBASE-12748:
--------------------------------
FAILURE: Integrated in HBase-TRUNK #6843 (See
[https://builds.apache.org/job/HBase-TRUNK/6843/])
HBASE-12748 RegionCoprocessorHost.execOperation creates too many iterator
objects (apurtell: rev e5d47a976e2b06bd7ec3383d9f86b6fd51947bd1)
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionServerCoprocessorHost.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/util/SortedList.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterCoprocessorHost.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestSortedList.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/WALCoprocessorHost.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/CoprocessorHost.java
> 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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