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Hudson commented on HBASE-14489: -------------------------------- FAILURE: Integrated in HBase-1.1 #683 (See [https://builds.apache.org/job/HBase-1.1/683/]) HBASE-14489 postScannerFilterRow consumes a lot of CPU. (larsh: rev 8dba3e8905454d7547dfd04d880687c544fefa0a) * hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestRegionObserverInterface.java * hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/SimpleRegionObserver.java * hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.java > postScannerFilterRow consumes a lot of CPU > ------------------------------------------ > > Key: HBASE-14489 > URL: https://issues.apache.org/jira/browse/HBASE-14489 > Project: HBase > Issue Type: Bug > Reporter: Lars Hofhansl > Assignee: Lars Hofhansl > Labels: performance > Fix For: 2.0.0, 1.2.0, 1.3.0, 0.98.15, 1.0.3, 1.1.3 > > Attachments: 14489-0.98.txt, 14489-master.txt > > > During an unrelated test I found that when scanning a tall table with CQ only > and filtering most results at the server, 50%(!) of time is spend in > postScannerFilterRow, even though the coprocessor does nothing in that hook. > We need to find a way not to call this hook when not needed, or to question > why we have this hook at all. > I think [~ram_krish] added the hook (or maybe [~anoop.hbase]). I am also not > sure whether Phoenix uses this hook ([~giacomotaylor]?) -- This message was sent by Atlassian JIRA (v6.3.4#6332)