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Hadoop QA commented on HDFS-8883: --------------------------------- \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:red}-1{color} | pre-patch | 19m 50s | Findbugs (version ) appears to be broken on trunk. | | {color:green}+1{color} | @author | 0m 0s | The patch does not contain any @author tags. | | {color:green}+1{color} | tests included | 0m 0s | The patch appears to include 2 new or modified test files. | | {color:green}+1{color} | javac | 7m 37s | There were no new javac warning messages. | | {color:green}+1{color} | javadoc | 9m 41s | There were no new javadoc warning messages. | | {color:green}+1{color} | release audit | 0m 22s | The applied patch does not increase the total number of release audit warnings. | | {color:green}+1{color} | site | 2m 57s | Site still builds. | | {color:green}+1{color} | checkstyle | 1m 38s | There were no new checkstyle issues. | | {color:green}+1{color} | whitespace | 0m 0s | The patch has no lines that end in whitespace. | | {color:green}+1{color} | install | 1m 31s | mvn install still works. | | {color:green}+1{color} | eclipse:eclipse | 0m 32s | The patch built with eclipse:eclipse. | | {color:green}+1{color} | findbugs | 4m 21s | The patch does not introduce any new Findbugs (version 3.0.0) warnings. | | {color:red}-1{color} | common tests | 22m 21s | Tests failed in hadoop-common. | | {color:red}-1{color} | hdfs tests | 176m 4s | Tests failed in hadoop-hdfs. | | | | 246m 58s | | \\ \\ || Reason || Tests || | Failed unit tests | hadoop.ha.TestZKFailoverController | | | hadoop.net.TestNetUtils | | | hadoop.hdfs.TestRollingUpgrade | | Timed out tests | org.apache.hadoop.cli.TestHDFSCLI | \\ \\ || Subsystem || Report/Notes || | Patch URL | http://issues.apache.org/jira/secure/attachment/12749711/HDFS-8883.001.patch | | Optional Tests | site javadoc javac unit findbugs checkstyle | | git revision | trunk / 1c12adb | | hadoop-common test log | https://builds.apache.org/job/PreCommit-HDFS-Build/11982/artifact/patchprocess/testrun_hadoop-common.txt | | hadoop-hdfs test log | https://builds.apache.org/job/PreCommit-HDFS-Build/11982/artifact/patchprocess/testrun_hadoop-hdfs.txt | | Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/11982/testReport/ | | Java | 1.7.0_55 | | uname | Linux asf909.gq1.ygridcore.net 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 | | Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/11982/console | This message was automatically generated. > NameNode Metrics : Add FSNameSystem lock Queue Length > ----------------------------------------------------- > > Key: HDFS-8883 > URL: https://issues.apache.org/jira/browse/HDFS-8883 > Project: Hadoop HDFS > Issue Type: Improvement > Components: HDFS > Affects Versions: 2.7.1 > Reporter: Anu Engineer > Assignee: Anu Engineer > Priority: Minor > Fix For: 2.8.0 > > Attachments: HDFS-8883.001.patch > > > FSNameSystemLock can have contention when NameNode is under load. This patch > adds LockQueueLength -- the number of threads waiting on FSNameSystemLock -- > as a metric in NameNode. -- This message was sent by Atlassian JIRA (v6.3.4#6332)