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From "Dmitro Lisnichenko" <>
Subject Review Request 28807: Configs: Enabling Yarn RM HA through Ambari should enable work preserving RM restart
Date Mon, 08 Dec 2014 20:12:49 GMT

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Review request for Ambari and Andrew Onischuk.

Bugs: AMBARI-8591

Repository: ambari


Ambari deploy's Yarn RM HA and does not enable work preserving restarts. Which control how
many time am can restart are not set accounting for HA cluster.
mapred-site.xml -> (defaults to 2)
tez-site.xml -> (defaults to 2)
yarn-site.xml -> (defaults to 2)
In gsInstaller we set this all to 20 which might be over kill but i think when yarn HA is
enabled we should set these to a better value. Yarn team should provide input on what we should
set them if HA is on and if they should be different if WRP is on as well.





manual verification


Dmitro Lisnichenko

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