[
https://issues.apache.org/jira/browse/CASSANDRA-3172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13102103#comment-13102103
]
Jonathan Ellis commented on CASSANDRA-3172:
-------------------------------------------
But if you are switching between DCs you're already saying "I don't care very
much about consistency after all."
> Add CL.ANY_QUORUM to support quorum requests with cross datacenter failover
> ---------------------------------------------------------------------------
>
> Key: CASSANDRA-3172
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3172
> Project: Cassandra
> Issue Type: Improvement
> Components: API, Core
> Reporter: Mark Guzman
> Priority: Minor
>
> Currently we provide CL.LOCAL_QUORUM and CL.EACH_QUORUM. CL.ANY_QUORUM would
> operate like CL.LOCAL_QUORUM if a local quorum is possible, if it is not the
> coordinator would use its knowledge to select the "fastest/closest" node in
> another datacenter to attempt another LOCAL_QUORUM in. This would allow for
> simple reliable cross datacenter failover without putting the intelligence in
> the client. The client is intrinsically at a disadvantage since it doesn't
> have a current full picture of the rings.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
