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From "Dmitro Lisnichenko" <dlysniche...@hortonworks.com>
Subject Review Request 29765: Change retry settings in Ambari installer for nm connect retry
Date Fri, 09 Jan 2015 15:43:47 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/29765/
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Review request for Ambari and Myroslav Papirkovskyy.


Bugs: AMBARI-9064
    https://issues.apache.org/jira/browse/AMBARI-9064


Repository: ambari


Description
-------

we need to change the nm retry settings to resolve the bug. The proposed new settings in yarn-site.xml
are:
yarn.client.nodemanager-connect.max-wait-ms = 60,000
yarn.client.nodemanager-connect.retry-interval-ms = 10,000
If the underlying rpc retry takes 1 sec * 50 times to finish (50 secs), this will make each
round of retry to be 10 + 50 secs = 1 minute. From the code, there will be 60,000 / 10,000
= 6 times of retries. So, in total, if the node manager accidentally crashed and never goes
up, we well retry 1 minute * 6 times = 6 minutes. The whole calculation is based on the rpc
settings (50 times, 1 sec sleep time),


Diffs
-----

  ambari-server/src/main/resources/stacks/HDP/2.2.GlusterFS/services/YARN/configuration/yarn-site.xml
2eb1bcc 
  ambari-server/src/main/resources/stacks/HDP/2.2/services/YARN/configuration/yarn-site.xml
847711a 
  ambari-server/src/main/resources/stacks/HDPWIN/2.2/services/YARN/configuration/yarn-site.xml
847711a 

Diff: https://reviews.apache.org/r/29765/diff/


Testing
-------

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Ambari Views ...................................... SUCCESS [4.585s]
[INFO] Ambari Server ..................................... SUCCESS [33.352s]
[INFO] Ambari Agent ...................................... SUCCESS [15.611s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 56.009s
[INFO] Finished at: Fri Jan 09 18:43:37 FET 2015
[INFO] Final Memory: 38M/381M
[INFO] ------------------------------------------------------------------------


Thanks,

Dmitro Lisnichenko


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