Andrew Onischuk created AMBARI-6286:
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Summary: Get rid of using macros as enviroment variables for nagios
Key: AMBARI-6286
URL: https://issues.apache.org/jira/browse/AMBARI-6286
Project: Ambari
Issue Type: Bug
Reporter: Andrew Onischuk
Assignee: Andrew Onischuk
Fix For: 1.7.0
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.
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