[jira] [Created] (CASSANDRA-4665) Add Sanity Checks for User Modifiable Settings

["Benjamin Coverston (JIRA)" <ji...@apache.org>]

Benjamin Coverston created CASSANDRA-4665:
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             Summary: Add Sanity Checks for User Modifiable Settings
                 Key: CASSANDRA-4665
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4665
             Project: Cassandra
          Issue Type: Improvement
          Components: Core
            Reporter: Benjamin Coverston
            Priority: Trivial


I've looked at a several environments that have had some problems that may have been more easily identified if there was some type of warning or error thrown if some of the user modifiable settings had some sanity check associated with it.

In one instance I saw a cluster that was having memory issues. After looking at the YAML they had:

index_interval: 32

I'm not sure why anyone would set this lower than the default. They didn't even know what the setting did. Perhaps if we issued a warning on startup in cases like this it could have been resolved more quickly and easily.


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