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https://reviews.apache.org/r/23011/
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Review request for Ambari and Dmitro Lisnichenko.


Bugs: AMBARI-6286
    https://issues.apache.org/jira/browse/AMBARI-6286


Repository: ambari


Description
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    Macros are normally made available to check, notification, event handler, 
etc. commands as environment variables. 
    This can be a problem in a large Nagios installation, as it consumes some 
additional memory and (more importantly) more CPU. 
    If your scripts don't need to access the macros as environment variables 
(e.g. you pass all necessary macros on the command line), you don't need this 
feature. 
    You can prevent macros from being made available as environment variables 
by using the enable_environment_macros option.
    

we have 3 enviroment macros used in check_wrapper.sh, and some in other
scripts, we can excplicetely set them to env by editting hadoop-commands.cfg

Benefit: we can stop using expensive enable_environment_macros, and have
alerts working on large cluster.


Diffs
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ambari-server/src/main/resources/stacks/HDP/1.3.2/services/NAGIOS/package/scripts/params.py
 ac955cd 
  
ambari-server/src/main/resources/stacks/HDP/1.3.2/services/NAGIOS/package/templates/hadoop-commands.cfg.j2
 fe7495f 
  
ambari-server/src/main/resources/stacks/HDP/1.3.2/services/NAGIOS/package/templates/nagios.cfg.j2
 05d94b5 
  
ambari-server/src/main/resources/stacks/HDP/2.0.6/services/NAGIOS/package/scripts/params.py
 8fcdd14 
  
ambari-server/src/main/resources/stacks/HDP/2.0.6/services/NAGIOS/package/templates/hadoop-commands.cfg.j2
 fa38a06 
  
ambari-server/src/main/resources/stacks/HDP/2.0.6/services/NAGIOS/package/templates/nagios.cfg.j2
 528ddc2 

Diff: https://reviews.apache.org/r/23011/diff/


Testing
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mvn clean test


Thanks,

Andrew Onischuk

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