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Hadoop QA commented on HBASE-14490: ----------------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12764015/HBASE-14490-v9.patch against master branch at commit cfce91e514dcb570ca1b3131f340dc01cdbd5e56. ATTACHMENT ID: 12764015 {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:red}-1 tests included{color}. The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch. {color:green}+1 hadoop versions{color}. The patch compiles with all supported hadoop versions (2.4.0 2.4.1 2.5.0 2.5.1 2.5.2 2.6.0 2.7.0 2.7.1) {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:green}+1 protoc{color}. The applied patch does not increase the total number of protoc compiler warnings. {color:green}+1 javadoc{color}. The javadoc tool did not generate any warning messages. {color:green}+1 checkstyle{color}. The applied patch does not increase the total number of checkstyle errors {color:green}+1 findbugs{color}. The patch does not introduce any new Findbugs (version 2.0.3) warnings. {color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings. {color:green}+1 lineLengths{color}. The patch does not introduce lines longer than 100 {color:green}+1 site{color}. The mvn post-site goal succeeds with this patch. {color:red}-1 core tests{color}. The patch failed these unit tests: {color:red}-1 core zombie tests{color}. There are 2 zombie test(s): at org.apache.hadoop.hbase.regionserver.TestHRegion.testFlushCacheWhileScanning(TestHRegion.java:3756) Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/15788//testReport/ Release Findbugs (version 2.0.3) warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/15788//artifact/patchprocess/newFindbugsWarnings.html Checkstyle Errors: https://builds.apache.org/job/PreCommit-HBASE-Build/15788//artifact/patchprocess/checkstyle-aggregate.html Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/15788//console This message is automatically generated. > [RpcServer] reuse request read buffer > ------------------------------------- > > Key: HBASE-14490 > URL: https://issues.apache.org/jira/browse/HBASE-14490 > Project: HBase > Issue Type: Improvement > Components: IPC/RPC > Affects Versions: 2.0.0, 1.0.2 > Reporter: Zephyr Guo > Assignee: Zephyr Guo > Labels: performance > Fix For: 2.0.0, 1.0.2 > > Attachments: HBASE-14490-v1.patch, HBASE-14490-v2.patch, > HBASE-14490-v3.patch, HBASE-14490-v4.patch, HBASE-14490-v5.patch, > HBASE-14490-v6.patch, HBASE-14490-v7.patch, HBASE-14490-v8.patch, > HBASE-14490-v9.patch > > > Reuse buffer to read request.It's not necessary free data's buffer for each > request.Optimization is to reduce the times that allocate ByteBuffer. > *patch modification* > * {{saslReadAndProcess}} and {{processOneRpc}} accept a ByteBuffer instead of > byte[]. > * {{processUnwrappedData}} can reuse the same ByteBuffer that > {{saslReadAndProcess}} used. > * Maintaining a reused ByteBuffer each {{Reader}} for most request. > ** Buffer size is fixed. > ** Using a SoftReference to reference the buffer. > ** If request is too large, we allocate a temporary ByteBuffer.Freeing it > when {{process()}} will have been finished. -- This message was sent by Atlassian JIRA (v6.3.4#6332)