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Blake Eggleston commented on CASSANDRA-7296:
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bq. are there scenarios where you would query a non-replica and expect it to
return nothing rather than proxy the request
It's more the guarantee that you're _definitely_ looking at the data on a
certain node. If we proxy when non-replicas are queried then you can't be sure
that you're looking at the data on a certain node. If you've made a mistake,
and queried a non replica, you'll see data from a different node
> Add CL.COORDINATOR_ONLY
> -----------------------
>
> Key: CASSANDRA-7296
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7296
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Tupshin Harper
>
> For reasons such as CASSANDRA-6340 and similar, it would be nice to have a
> read that never gets distributed, and only works if the coordinator you are
> talking to is an owner of the row.
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