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https://issues.apache.org/jira/browse/CASSANDRA-1293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis updated CASSANDRA-1293:
--------------------------------------

    Attachment: 1293.txt

We expect to save [cache hit rate] of a read per write with write-through, 
since the alternative is to invalidate the cached row at write time and reload 
it when it's requested again.

Attached patch moves the cache udpate into CFS.apply.

> add locking around row cache accesses
> -------------------------------------
>
>                 Key: CASSANDRA-1293
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1293
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Jonathan Ellis
>            Priority: Minor
>             Fix For: 0.7.0
>
>         Attachments: 1293.txt
>
>
> CASSANDRA-1267 means we need to lock around removeDeleted on the row cache 
> entry and the write path where we merge in new columns (otherwise there can 
> be a race where we incorrectly continue to remove a column, that has been 
> updated by the writer thread to be newly relevant)

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