[ https://issues.apache.org/jira/browse/MAPREDUCE-5044?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Eric Payne updated MAPREDUCE-5044: ---------------------------------- Attachment: MAPREDUCE-5044.013.patch {{MAPREDUCE-5044.013.patch}} addresses most of the checkstyle warnings from the previous pre-commit build. The one exception is for those flagged in {{TestMRJobs.java}}. It is triggering the alert because of an inner assignments in the following for loop: {code} for (String line; (line = syslogReader.readLine()) != null; ) { ... } {code} The code could be changed to something like the following, but I think that would be more awkward: {code} String line = syslogReader.readLine(); for (String line; line != null; ) { ... line = syslogReader.readLine(); } {code} > Have AM trigger jstack on task attempts that timeout before killing them > ------------------------------------------------------------------------ > > Key: MAPREDUCE-5044 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-5044 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Components: mr-am > Affects Versions: 2.1.0-beta > Reporter: Jason Lowe > Assignee: Eric Payne > Attachments: MAPREDUCE-5044.008.patch, MAPREDUCE-5044.009.patch, > MAPREDUCE-5044.010.patch, MAPREDUCE-5044.011.patch, MAPREDUCE-5044.012.patch, > MAPREDUCE-5044.013.patch, MAPREDUCE-5044.v01.patch, MAPREDUCE-5044.v02.patch, > MAPREDUCE-5044.v03.patch, MAPREDUCE-5044.v04.patch, MAPREDUCE-5044.v05.patch, > MAPREDUCE-5044.v06.patch, MAPREDUCE-5044.v07.local.patch, Screen Shot > 2013-11-12 at 1.05.32 PM.png, Screen Shot 2013-11-12 at 1.06.04 PM.png > > > When an AM expires a task attempt it would be nice if it triggered a jstack > output via SIGQUIT before killing the task attempt. This would be invaluable > for helping users debug their hung tasks, especially if they do not have > shell access to the nodes. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org