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https://issues.apache.org/jira/browse/CASSANDRA-12624?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Podkowinski updated CASSANDRA-12624:
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Status: Awaiting Feedback (was: Open)
> Add cassandra.yaml overlay capabilities (can issue pull request now)
> --------------------------------------------------------------------
>
> Key: CASSANDRA-12624
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12624
> Project: Cassandra
> Issue Type: Improvement
> Components: Configuration
> Environment: OSX but should work on any OS.
> Reporter: Craig McConomy
> Priority: Minor
> Labels: configuration, configuration-addition
> Fix For: 3.x
>
> Original Estimate: 0h
> Remaining Estimate: 0h
>
> Adds a new file "conf/cassandra-overlay.yaml" that can contain any settings
> found in cassandra.yaml. Any settings, if found, override whatever is found
> in cassandra.yaml
> A different overlay file can be specified using
> -Dcassandra.config.overlay=your_file_name
> Overlay processing can be disabled with
> -Dcassandra.config.overlay.disable=true
> Rationale: When administering cassandra nodes, I have found it quite common
> to want to distribute a common "golden" cassandra.yaml. This is challenging
> where you have a configuration value or two that needs to be modified per
> node. In this case, ops needs to know which lines of cassandra.yaml to ignore
> (because it's the same on all nodes) so that they can focus on what's
> uniquely configured for a particular node.
> By specifying an additional overlay file, cassandra admins have the
> flexibility to decide what is configured on a per-node basis, and can make it
> extremely clear.
> Source can be found in
> https://github.com/cmcconomy/cassandra/tree/config-overlay
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