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https://issues.apache.org/jira/browse/CASSANDRA-197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12725232#action_12725232
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Eric Evans commented on CASSANDRA-197:
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Voldemort does not use gossip, no. In fact, when last I looked at it, there was
no failure detection at all. Each node is configured with the same list as the
others, the thick client uses one or more seeds to fetch that list from a
special store using the same get() semantics as any other object.
A cassandra thick client could learn the ring via gossip and utilize the same
failure detection, but obviously there'd need to be some sort of distinction
since the client isn't part of the ring. I suppose you could also periodically
poll this information from one or more of the nodes, but that sounds ugly.
> Expose ring map to client for more direct access
> ------------------------------------------------
>
> Key: CASSANDRA-197
> URL: https://issues.apache.org/jira/browse/CASSANDRA-197
> Project: Cassandra
> Issue Type: New Feature
> Reporter: Jun Rao
> Assignee: Jun Rao
> Attachments: issue197.patchv1
>
>
> For certain applications, it would be nice if a read is sent to a node that
> owns the data locally. This saves an extra network hop. To do that, a client
> will need to cache the ring map and use it to figure out the nodes owning a
> row.
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