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Hadoop QA commented on HDFS-8929: --------------------------------- \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:red}-1{color} | pre-patch | 21m 53s | Pre-patch trunk has 4 extant Findbugs (version 3.0.0) warnings. | | {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 1 new or modified test files. | | {color:green}+1{color} | javac | 7m 52s | There were no new javac warning messages. | | {color:green}+1{color} | javadoc | 10m 4s | 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 | 3m 1s | Site still builds. | | {color:green}+1{color} | checkstyle | 2m 36s | There were no new checkstyle issues. | | {color:red}-1{color} | whitespace | 0m 0s | The patch has 1 line(s) that end in whitespace. Use git apply --whitespace=fix. | | {color:green}+1{color} | install | 1m 24s | mvn install still works. | | {color:green}+1{color} | eclipse:eclipse | 0m 32s | The patch built with eclipse:eclipse. | | {color:green}+1{color} | findbugs | 4m 29s | The patch does not introduce any new Findbugs (version 3.0.0) warnings. | | {color:green}+1{color} | common tests | 22m 59s | Tests passed in hadoop-common. | | {color:red}-1{color} | hdfs tests | 0m 25s | Tests failed in hadoop-hdfs. | | | | 75m 40s | | \\ \\ || Reason || Tests || | Failed build | hadoop-hdfs | \\ \\ || Subsystem || Report/Notes || | Patch URL | http://issues.apache.org/jira/secure/attachment/12752499/HDFS-8929-002.patch | | Optional Tests | site javadoc javac unit findbugs checkstyle | | git revision | trunk / a4d9acc | | Pre-patch Findbugs warnings | https://builds.apache.org/job/PreCommit-HDFS-Build/12138/artifact/patchprocess/trunkFindbugsWarningshadoop-hdfs.html | | whitespace | https://builds.apache.org/job/PreCommit-HDFS-Build/12138/artifact/patchprocess/whitespace.txt | | hadoop-common test log | https://builds.apache.org/job/PreCommit-HDFS-Build/12138/artifact/patchprocess/testrun_hadoop-common.txt | | hadoop-hdfs test log | https://builds.apache.org/job/PreCommit-HDFS-Build/12138/artifact/patchprocess/testrun_hadoop-hdfs.txt | | Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/12138/testReport/ | | Java | 1.7.0_55 | | uname | Linux asf906.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/12138/console | This message was automatically generated. > Add a metric to expose the timestamp of the last journal > -------------------------------------------------------- > > Key: HDFS-8929 > URL: https://issues.apache.org/jira/browse/HDFS-8929 > Project: Hadoop HDFS > Issue Type: New Feature > Components: journal-node > Reporter: Akira AJISAKA > Assignee: Surendra Singh Lilhore > Attachments: HDFS-8929-001.patch, HDFS-8929-002.patch > > > If there are three JNs and only one JN is failing to journal, we can detect > it by monitoring the difference of the last written transaction id among JNs > from NN WebUI or JN metrics. However, it's difficult to define the threshold > to alert because the increase rate of the number of transaction depends on > how busy the cluster is. Therefore I'd like to propose a metric to expose the > timestamp of the last journal. That way we can easily alert if a JN is > failing to journal for some fixed period. -- This message was sent by Atlassian JIRA (v6.3.4#6332)