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Hadoop QA commented on HBASE-5945: ---------------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12563981/5945-in-progress.2.1.patch against trunk revision . {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:green}+1 tests included{color}. The patch appears to include 6 new or modified tests. {color:green}+1 hadoop2.0{color}. The patch compiles against the hadoop 2.0 profile. {color:red}-1 javadoc{color}. The javadoc tool appears to have generated 1 warning messages. {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:red}-1 findbugs{color}. The patch appears to introduce 2 new Findbugs (version 1.3.9) warnings. {color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings. {color:red}-1 lineLengths{color}. The patch introduces lines longer than 100 {color:red}-1 core tests{color}. The patch failed these unit tests: org.apache.hadoop.hbase.client.TestFromClientSide org.apache.hadoop.hbase.TestLocalHBaseCluster {color:red}-1 core zombie tests{color}. There are 8 zombie test(s): at org.apache.hadoop.hbase.master.TestMasterFailover.testMasterFailoverWithMockedRITOnDeadRS(TestMasterFailover.java:833) Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/3951//testReport/ Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3951//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3951//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3951//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3951//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3951//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3951//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3951//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/3951//console This message is automatically generated. > Reduce buffer copies in IPC server response path > ------------------------------------------------ > > Key: HBASE-5945 > URL: https://issues.apache.org/jira/browse/HBASE-5945 > Project: HBase > Issue Type: Improvement > Components: IPC/RPC > Affects Versions: 0.96.0 > Reporter: Todd Lipcon > Assignee: stack > Priority: Blocker > Fix For: 0.96.0 > > Attachments: 5945-in-progress.2.1.patch, 5945-in-progress.2.patch, > 5945-in-progress.patch, buffer-copies.txt, even-fewer-copies.txt, > hbase-5495.txt > > > The new PB code is sloppy with buffers and makes several needless copies. > This increases GC time a lot. A few simple changes can cut this back down. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira