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https://issues.apache.org/jira/browse/CASSANDRA-2100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12998621#comment-12998621
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Jon Hermes commented on CASSANDRA-2100:
---------------------------------------

I thought that UpdateColumnFamily.applyModels() called CFS.reload() in all 
cases, but that only happens when the server is not in client mode.

CFMetaData.apply(avro CfDef) will need to call the update logic. Patch 
forthcoming.

> Restart required to change cache_save_period
> --------------------------------------------
>
>                 Key: CASSANDRA-2100
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2100
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.7.0
>            Reporter: Nick Bailey
>            Assignee: Jon Hermes
>            Priority: Minor
>             Fix For: 0.7.3
>
>         Attachments: 2100-2.txt, 2100.txt
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> The cache_save_period is set in the schema for each column family.  However 
> this value is only checked when a node starts up so changing this value isn't 
> really dynamic.
> We should actually change this when the schema changes instead of having to 
> restart.

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