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From "Dmitro Lisnichenko" <dlysniche...@hortonworks.com>
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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This is an automatically generated e-mail. To reply, visit:
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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