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(Updated Aug. 2, 2017, 8:30 p.m.) Review request for Ambari, Alejandro Fernandez, Di Li, Jonathan Hurley, Sumit Mohanty, Sid Wagle, and Tim Thorpe. Bugs: AMBARI-21637 https://issues.apache.org/jira/browse/AMBARI-21637 Repository: ambari Description ------- During upgrade `hive.execution.engine` is set to `tez`, even though Tez is not installed in the cluster. Change back `hive.execution.engine` to `mr`. Diffs ----- ambari-server/src/main/resources/stacks/BigInsights/4.2.5/upgrades/config-upgrade.xml 52a6cdcd4b3ee1c9691fdb76da84cf23057e30f1 ambari-server/src/main/resources/stacks/BigInsights/4.2.5/upgrades/nonrolling-upgrade-to-hdp-2.6.xml 1fe0382932dd44d40e5e61c2d40e5c26482abe24 ambari-server/src/main/resources/stacks/BigInsights/4.2/upgrades/config-upgrade.xml 17e80b5045ae4f790cc172e8a5b6ce4b33d344d5 ambari-server/src/main/resources/stacks/BigInsights/4.2/upgrades/nonrolling-upgrade-to-hdp-2.6.xml 55736cf613a767e7c5d2786d4db1774ccc1854d7 Diff: https://reviews.apache.org/r/61377/diff/1/ Testing ------- Tested stack upgrade on local cluster from both 4.2 and 4.2.5. Thanks, Attila Doroszlai