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Hudson commented on MAPREDUCE-3901: ----------------------------------- Integrated in Hadoop-Common-trunk-Commit #1789 (See [https://builds.apache.org/job/Hadoop-Common-trunk-Commit/1789/]) MAPREDUCE-3901. Modified JobHistory records in YARN to lazily load job and task reports so as to improve UI response times. Contributed by Siddarth Seth. (Revision 1294417) Result = SUCCESS vinodkv : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1294417 Files : * /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt * /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/util/MRBuilderUtils.java * /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/CompletedJob.java * /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/CompletedTask.java * /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/CompletedTaskAttempt.java * /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/JobHistory.java * /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/TestJobHistoryEntities.java * /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/resources/job_1329348432655_0001-1329348443227-user-Sleep+job-1329348468601-10-1-SUCCEEDED-default.jhist * /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/resources/job_1329348432655_0001_conf.xml > lazy load JobHistory Task and TaskAttempt details > ------------------------------------------------- > > Key: MAPREDUCE-3901 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-3901 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Components: jobhistoryserver, mrv2 > Affects Versions: 0.23.0 > Reporter: Siddharth Seth > Assignee: Siddharth Seth > Fix For: 0.23.2 > > Attachments: MR3901.txt, MR3901_v2.txt, MR3901_v3.txt > > > The job history UI and MRClientProtocol calls routed via JobHistory are very > slow for large jobs. Some of this time is spent parsing the history file. A > good chunk is spent pre-creating lots of objects which may never be used. > Those can be create when required - bringing down the load times of job > history pages and getJobReport etc calls to approximately the history file > parse time. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira