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https://reviews.apache.org/r/28807/
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Review request for Ambari and Andrew Onischuk.


Bugs: AMBARI-8591
    https://issues.apache.org/jira/browse/AMBARI-8591


Repository: ambari


Description
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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 -> mapreduce.am.max-attempts (defaults to 2)
tez-site.xml -> tez.am.max.app.attempts (defaults to 2)
yarn-site.xml -> yarn.resourcemanager.am.max-attempts (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.


Diffs
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ambari-server/src/main/resources/stacks/HDP/2.2/services/YARN/configuration/yarn-site.xml
 c480566 

Diff: https://reviews.apache.org/r/28807/diff/


Testing
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manual verification


Thanks,

Dmitro Lisnichenko

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