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From "Canan Girgin" <>
Subject Re: Review Request 39971: Checking the vm.swappiness Kernel Parameter
Date Tue, 10 Nov 2015 08:47:01 GMT

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(Updated Nov. 10, 2015, 8:47 a.m.)

Review request for Ambari, Aleksandr Kovalenko, Andrew Onischuk, and Dmitro Lisnichenko.

Bugs: AMBARI-13738

Repository: ambari


Swappiness parameter is set to 60 by default. This is not suitable for Hadoop clusters. When
installing new cluster, Ambari should be check  if the swappiness parameter is less than 10


  ambari-agent/src/main/python/ambari_agent/ 9460256 
  ambari-agent/src/test/python/ambari_agent/ 4a1f5f4 
  ambari-server/src/main/java/org/apache/ambari/server/agent/ ede3965 
  ambari-server/src/main/resources/custom_actions/scripts/ 8b49725 
  ambari-server/src/test/java/org/apache/ambari/server/agent/ 273158f

  ambari-server/src/test/python/custom_actions/ 1e45927 
  ambari-server/src/test/python/stacks/2.1/common/hosts.json b8f8610 
  ambari-server/src/test/python/stacks/2.2/common/2/hosts.json a549312 
  ambari-web/app/controllers/wizard/step3_controller.js cf1f1ae 
  ambari-web/app/messages.js 377ed7d 
  ambari-web/app/views/wizard/step3/hostWarningPopupBody_view.js 9c6454e 
  ambari-web/app/views/wizard/step3_view.js 6ecfb41 


Testing (updated)

Manual testing done.
mvn clean test

10288 tests complete (11 seconds)
105 tests pending


Canan Girgin

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