Thanks for the info Harsh, MAPREDUCE-5583 also states the scenario where this configuration would be useful !
+Naga ________________________________________ From: Harsh J [ha...@cloudera.com] Sent: Thursday, April 23, 2015 11:24 To: <user@hadoop.apache.org> Subject: Re: Is there any way to limit the concurrent running mappers per job? This has been introduced as a 2.7.0 feature, see MAPREDUCE-5583. On Tue, Apr 21, 2015 at 4:32 AM, Zhe Li <allenlee...@gmail.com> wrote: > Hi, after upgraded to Hadoop 2 (yarn), I found that > 'mapred.jobtracker.taskScheduler.maxRunningTasksPerJob' no longer worked, > right? > > One workaround is to use queue to limit it, but it's not easy to control it > from job submitter. > Is there any way to limit the concurrent running mappers per job? > Any documents or discussions before? > > BTW, any way to search this mailing list before I post a new question? > > Thanks very much. -- Harsh J
