[ https://issues.apache.org/jira/browse/HDFS-9198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15061148#comment-15061148 ]
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 0s {color} | {color:blue} Docker mode activated. {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} 8m 39s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 51s {color} | {color:green} trunk passed with JDK v1.8.0_66 {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 47s {color} | {color:green} trunk passed with JDK v1.7.0_91 {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 19s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 0s {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:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 6s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 16s {color} | {color:green} trunk passed with JDK v1.8.0_66 {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 59s {color} | {color:green} trunk passed with JDK v1.7.0_91 {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 57s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 53s {color} | {color:green} the patch passed with JDK v1.8.0_66 {color} | | {color:red}-1{color} | {color:red} javac {color} | {color:red} 7m 13s {color} | {color:red} hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_66 with JDK v1.8.0_66 generated 3 new issues (was 32, now 32). {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 53s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 54s {color} | {color:green} the patch passed with JDK v1.7.0_91 {color} | | {color:red}-1{color} | {color:red} javac {color} | {color:red} 8m 9s {color} | {color:red} hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_91 with JDK v1.7.0_91 generated 3 new issues (was 34, now 34). {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 54s {color} | {color:green} the patch passed {color} | | {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 20s {color} | {color:red} Patch generated 5 new checkstyle issues in hadoop-hdfs-project/hadoop-hdfs (total was 384, now 384). {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 7s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 17s {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 31s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 24s {color} | {color:green} the patch passed with JDK v1.8.0_66 {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 11s {color} | {color:green} the patch passed with JDK v1.7.0_91 {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red} 66m 43s {color} | {color:red} hadoop-hdfs in the patch failed with JDK v1.8.0_66. {color} | | {color:red}-1{color} | {color:red} unit {color} | {color:red} 57m 48s {color} | {color:red} hadoop-hdfs in the patch failed with JDK v1.7.0_91. {color} | | {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 0m 25s {color} | {color:red} Patch generated 58 ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 155m 53s {color} | {color:black} {color} | \\ \\ || Reason || Tests || | JDK v1.8.0_66 Failed junit tests | hadoop.hdfs.server.namenode.ha.TestSeveralNameNodes | | | hadoop.hdfs.TestDFSUpgradeFromImage | | | hadoop.hdfs.server.datanode.TestBlockScanner | | | hadoop.hdfs.server.namenode.snapshot.TestRenameWithSnapshots | | | hadoop.hdfs.server.namenode.TestNNThroughputBenchmark | | JDK v1.7.0_91 Failed junit tests | hadoop.hdfs.server.datanode.TestRefreshNamenodes | | | hadoop.hdfs.web.TestWebHDFS | | | hadoop.hdfs.server.namenode.snapshot.TestRenameWithSnapshots | | | hadoop.hdfs.server.namenode.TestNNThroughputBenchmark | \\ \\ || Subsystem || Report/Notes || | Docker | Image:yetus/hadoop:0ca8df7 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12778095/HDFS-9198-trunk.patch | | JIRA Issue | HDFS-9198 | | Optional Tests | asflicense compile javac javadoc mvninstall mvnsite unit findbugs checkstyle | | uname | Linux c075728831b6 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 | /testptch/hadoop/patchprocess/precommit/personality/provided.sh | | git revision | trunk / 0f708d4 | | findbugs | v3.0.0 | | javac | hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_66: https://builds.apache.org/job/PreCommit-HDFS-Build/13902/artifact/patchprocess/diff-compile-javac-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_66.txt | | javac | hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_91: https://builds.apache.org/job/PreCommit-HDFS-Build/13902/artifact/patchprocess/diff-compile-javac-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_91.txt | | checkstyle | https://builds.apache.org/job/PreCommit-HDFS-Build/13902/artifact/patchprocess/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt | | unit | https://builds.apache.org/job/PreCommit-HDFS-Build/13902/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_66.txt | | unit | https://builds.apache.org/job/PreCommit-HDFS-Build/13902/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_91.txt | | unit test logs | https://builds.apache.org/job/PreCommit-HDFS-Build/13902/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.8.0_66.txt https://builds.apache.org/job/PreCommit-HDFS-Build/13902/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_91.txt | | JDK v1.7.0_91 Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/13902/testReport/ | | asflicense | https://builds.apache.org/job/PreCommit-HDFS-Build/13902/artifact/patchprocess/patch-asflicense-problems.txt | | modules | C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs | | Max memory used | 75MB | | Powered by | Apache Yetus 0.2.0-SNAPSHOT http://yetus.apache.org | | Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/13902/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, > 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)