Jason Lowe created MAPREDUCE-6697: ------------------------------------- Summary: Concurrent task limits should only be applied when necessary Key: MAPREDUCE-6697 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6697 Project: Hadoop Map/Reduce Issue Type: Bug Components: mrv2 Affects Versions: 2.7.0 Reporter: Jason Lowe
The concurrent task limit feature should only adjust the ANY portion of the AM heartbeat ask when a limit is truly necessary, otherwise extraneous containers could be allocated by the RM to the AM adding some overhead to both. Specifying a concurrent task limit that is beyond the total number of tasks in the job should be the same as asking for no limit. -- 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