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Andrew Purtell commented on HBASE-12748: ---------------------------------------- I would think perf difference is within normal run to run variance. The change doesn't affect perf directly, instead object allocations. > 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, 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)