[ https://issues.apache.org/jira/browse/HDFS-9198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14987804#comment-14987804 ]
Hadoop QA commented on HDFS-9198: --------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 7s {color} | {color:blue} docker + precommit patch detected. {color} | | {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s {color} | {color:green} The patch does not contain any @author tags. {color} | | {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m 0s {color} | {color:green} The patch appears to include 6 new or modified test files. {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m 12s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 38s {color} | {color:green} trunk passed with JDK v1.8.0_60 {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 34s {color} | {color:green} trunk passed with JDK v1.7.0_79 {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 17s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {color} | {color:green} trunk passed {color} | | {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 2m 3s {color} | {color:red} hadoop-hdfs-project/hadoop-hdfs in trunk cannot run convertXmlToText from findbugs {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 12s {color} | {color:green} trunk passed with JDK v1.8.0_60 {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 56s {color} | {color:green} trunk passed with JDK v1.7.0_79 {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 41s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 37s {color} | {color:green} the patch passed with JDK v1.8.0_60 {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 37s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 34s {color} | {color:green} the patch passed with JDK v1.7.0_79 {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 34s {color} | {color:green} the patch passed {color} | | {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 16s {color} | {color:red} Patch generated 5 new checkstyle issues in hadoop-hdfs-project/hadoop-hdfs (total was 410, now 410). {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 0s {color} | {color:green} Patch has no whitespace issues. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 9s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 14s {color} | {color:green} the patch passed with JDK v1.8.0_60 {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 59s {color} | {color:green} the patch passed with JDK v1.7.0_79 {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red} 62m 1s {color} | {color:red} hadoop-hdfs in the patch failed with JDK v1.8.0_60. {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red} 60m 45s {color} | {color:red} hadoop-hdfs in the patch failed with JDK v1.7.0_79. {color} | | {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 0m 20s {color} | {color:red} Patch generated 58 ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 143m 55s {color} | {color:black} {color} | \\ \\ || Reason || Tests || | JDK v1.8.0_60 Failed junit tests | hadoop.hdfs.server.blockmanagement.TestNodeCount | | | hadoop.hdfs.server.namenode.TestNNThroughputBenchmark | | | hadoop.hdfs.server.namenode.TestCacheDirectives | | | hadoop.hdfs.server.namenode.ha.TestDFSUpgradeWithHA | | | hadoop.hdfs.server.datanode.TestDataNodeMetrics | | | hadoop.hdfs.TestDFSClientRetries | | | hadoop.hdfs.server.datanode.TestBlockScanner | | JDK v1.7.0_79 Failed junit tests | hadoop.hdfs.server.blockmanagement.TestNodeCount | | | hadoop.hdfs.TestRollingUpgrade | | | hadoop.hdfs.server.namenode.TestNNThroughputBenchmark | | | hadoop.hdfs.server.datanode.TestBlockScanner | \\ \\ || Subsystem || Report/Notes || | Docker | Client=1.7.1 Server=1.7.1 Image:test-patch-base-hadoop-date2015-11-03 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12770339/HDFS-9198-trunk.patch | | JIRA Issue | HDFS-9198 | | Optional Tests | asflicense javac javadoc mvninstall unit findbugs checkstyle compile | | uname | Linux c82d40790283 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | /home/jenkins/jenkins-slave/workspace/PreCommit-HDFS-Build/patchprocess/apache-yetus-1a9afee/precommit/personality/hadoop.sh | | git revision | trunk / 957f031 | | Default Java | 1.7.0_79 | | Multi-JDK versions | /usr/lib/jvm/java-8-oracle:1.8.0_60 /usr/lib/jvm/java-7-openjdk-amd64:1.7.0_79 | | findbugs | v3.0.0 | | findbugs | https://builds.apache.org/job/PreCommit-HDFS-Build/13359/artifact/patchprocess/branch-findbugs-hadoop-hdfs-project_hadoop-hdfs.html | | checkstyle | https://builds.apache.org/job/PreCommit-HDFS-Build/13359/artifact/patchprocess/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt | | unit | https://builds.apache.org/job/PreCommit-HDFS-Build/13359/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_60.txt | | unit | https://builds.apache.org/job/PreCommit-HDFS-Build/13359/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_79.txt | | unit test logs | https://builds.apache.org/job/PreCommit-HDFS-Build/13359/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_60.txt https://builds.apache.org/job/PreCommit-HDFS-Build/13359/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_79.txt | | JDK v1.7.0_79 Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/13359/testReport/ | | asflicense | https://builds.apache.org/job/PreCommit-HDFS-Build/13359/artifact/patchprocess/patch-asflicense-problems.txt | | modules | C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs | | Max memory used | 226MB | | Powered by | Apache Yetus http://yetus.apache.org | | Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/13359/console | This message was automatically generated. > Coalesce IBR processing in the NN > --------------------------------- > > Key: HDFS-9198 > URL: https://issues.apache.org/jira/browse/HDFS-9198 > Project: Hadoop HDFS > Issue Type: Improvement > Components: namenode > Affects Versions: 2.0.0-alpha > Reporter: Daryn Sharp > Assignee: Daryn Sharp > Attachments: HDFS-9198-branch2.patch, HDFS-9198-trunk.patch, > HDFS-9198-trunk.patch, HDFS-9198-trunk.patch, HDFS-9198-trunk.patch > > > IBRs from thousands of DNs under load will degrade NN performance due to > excessive write-lock contention from multiple IPC handler threads. The IBR > processing is quick, so the lock contention may be reduced by coalescing > multiple IBRs into a single write-lock transaction. The handlers will also > be freed up faster for other operations. -- This message was sent by Atlassian JIRA (v6.3.4#6332)