@Vikash Kumar The properties 'mapreduce.job.*' are only applicable to MR jobs. In Tez, the number of mappers and controlled by below parameters: tez.grouping.max-size(default 1073741824 which is 1GB) tez.grouping.min-size(default 52428800 which is 50MB) tez.grouping.split-count(not set by default) And, reducers are controlled in Hive with properties: hive.exec.reducers.bytes.per.reducer(default 256000000) hive.exec.reducers.max(default 1009) hive.tez.auto.reducer.parallelism(default false) For more details, refer link. ... View more

I had similar issue and fixed with the following ambari repo. wget -nv http://public-repo-1.hortonworks.com/ambari/centos6/2.x/updates/2.6.1.5/ambari.repo -O /etc/yum.repos.d/ambari.repo ... View more