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Hudson commented on HDFS-4621: ------------------------------ Integrated in Hadoop-Yarn-trunk #169 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/169/]) HDFS-4621. Additional logging to help diagnose slow QJM syncs. Contributed by Todd Lipcon. (Revision 1461777) Result = FAILURE todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1461777 Files : * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/client/IPCLoggerChannel.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/client/QuorumCall.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/server/Journal.java > additional logging to help diagnose slow QJM logSync > ---------------------------------------------------- > > Key: HDFS-4621 > URL: https://issues.apache.org/jira/browse/HDFS-4621 > Project: Hadoop HDFS > Issue Type: Bug > Components: ha, qjm > Affects Versions: 2.0.3-alpha > Reporter: Todd Lipcon > Assignee: Todd Lipcon > Priority: Minor > Fix For: 3.0.0, 2.0.5-beta > > Attachments: hdfs-4621.txt > > > I've been working on diagnosing an issue with a cluster which is seeing slow > logSync calls occasionally to QJM. Adding a few more pieces of logging would > help this: > - in the warning messages on the client side leading up to a timeout, include > which nodes have responded and which ones are still pending > - on the server side, when we actually call FileChannel.force, log a warning > if the sync takes longer than 1 second -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira