[ https://issues.apache.org/jira/browse/MAPREDUCE-1109?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Harsh J resolved MAPREDUCE-1109. -------------------------------- Resolution: Not A Problem I've not seen this CME occur on the JT UI in 1.x nor heard any further reports of it either. I'm resolving as Not a Problem for now. > ConcurrentModificationException in jobtracker.jsp > ------------------------------------------------- > > Key: MAPREDUCE-1109 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-1109 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: jobtracker > Affects Versions: 0.20.1 > Reporter: dhruba borthakur > Assignee: Harsh J > Attachments: MAPREDUCE-1109.patch, MAPREDUCE-1109.patch > > > The jobtracker.jsp invoked methods tracker.runningJobs(), > tracker.completedJobs() and tracker.failedJobs() but these methods are not > synchronized and can cause ConcurrentModificationException if the JT is > concurrently changing the contents of these datastructures. -- 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