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https://issues.apache.org/jira/browse/CASSANDRA-6572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13985381#comment-13985381
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Benedict commented on CASSANDRA-6572:
-------------------------------------

I wouldn't worry about the negligible amount of memory wasted storing the data 
- after all, if there are no new messages to log it means the server isn't 
serving any requests. A shutdown hook is probably easiest and sufficient, as a 
periodic flush would also miss any messages logged between last flush and 
shutdown.

> Workload recording / playback
> -----------------------------
>
>                 Key: CASSANDRA-6572
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6572
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core, Tools
>            Reporter: Jonathan Ellis
>            Assignee: Lyuben Todorov
>             Fix For: 2.1.1
>
>         Attachments: 6572-trunk.diff
>
>
> "Write sample mode" gets us part way to testing new versions against a real 
> world workload, but we need an easy way to test the query side as well.



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