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https://issues.apache.org/jira/browse/CASSANDRA-2102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12989857#comment-12989857
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Jonathan Ellis commented on CASSANDRA-2102:
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bq. The underlying buffer on the key gets reused
Where does this reuse happen? RowMutation.deepCopy should be taking care of it
on the local side, and sent-over-the-network buffers are not reused.
> saved row cache doesn't save the cache
> --------------------------------------
>
> Key: CASSANDRA-2102
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2102
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 0.7.0
> Reporter: Matthew F. Dennis
> Assignee: Matthew F. Dennis
> Fix For: 0.7.2
>
> Attachments: 2102-cassandra-0.7.txt
>
>
> saving row caches works by periodically iterating of the keySet() on the
> caches and writing the keys for the cached contents to disk. The cache keys
> are DecoratedKeys. DecoratedKeys contain a Token token and a ByteBuffer key.
> The underlying buffer on the key gets reused so the contents change. This
> means that all the cache entries have distinct tokens but only a handful of
> distinct key values. This means that when the cache is loaded you only end
> up loading a handful of keys instead of the ones actually in your cache.
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