Oleg Nechiporenko created AMBARI-3884:
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Summary: Validate string-type dynamic configs in YARN and MR2
Key: AMBARI-3884
URL: https://issues.apache.org/jira/browse/AMBARI-3884
Project: Ambari
Issue Type: Bug
Components: client
Affects Versions: 1.4.1
Reporter: Oleg Nechiporenko
Assignee: Oleg Nechiporenko
Fix For: 1.5.0
We have configs where portions of it are dynamically calculated:
* mapreduce.map.java.opts
* mapreduce.reduce.java.opts
* yarn.app.mapreduce.am.command-opts
For example we calculate "1024" in the ultimate value of "-Xmx1024m". When the
user messes it up (say "-Xmx100m"), we do not validate correctly. The
validators for the above properties need to be smarter to show warnings.
The validators have to be robust so that they can tolerate very complex strings
and error cases.
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