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Jason Lowe commented on MAPREDUCE-6735: --------------------------------------- It would also be good to know more details on the baseline being used when these commits are added/removed so we know what other changes are present/absent. Is this a 2.8 baseline with reverts on these two commits or something else? > Performance degradation caused by MAPREDUCE-5465 and HADOOP-12107 > ----------------------------------------------------------------- > > Key: MAPREDUCE-6735 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-6735 > Project: Hadoop Map/Reduce > Issue Type: Bug > Reporter: Alexandr Balitsky > > Two commits, MAPREDUCE-5465 and HADOOP-12107 are making Terasort on YARN 10% > slower. > Reduce phase with those commits ~5 mins > Reduce phase without ~3.5 mins > Average Reduce is taking 4mins, 16sec with those commits compared to 3mins, > 48sec without. -- 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