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Karthik Kambatla commented on MAPREDUCE-4565: --------------------------------------------- Sid, thanks for taking care of this. > Backport MR-2855 to branch-1: ResourceBundle lookup during counter name > resolution takes a lot of time > ------------------------------------------------------------------------------------------------------ > > Key: MAPREDUCE-4565 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-4565 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Affects Versions: 1.0.3 > Reporter: Karthik Kambatla > Assignee: Karthik Kambatla > Fix For: 1.2.0 > > Attachments: branch1-MR-4565.patch, branch1-MR-4565.patch > > > Loading a job status page in trunk takes a lot of time, and it seems like > most of the time is spent resolving counter names. Looking through the JDK > source, ResourceBundle.getBundle(String) ends up calling getClassContext() > which is not very efficient. I think if we pass our own classloader manually > it will be faster. In Counters.incrAllCounters, we may also be able to avoid > setting the counter name if one is already set. -- 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