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https://issues.apache.org/jira/browse/CASSANDRA-9876?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15147014#comment-15147014
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Jeff Jirsa commented on CASSANDRA-9876:
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Would be especially useful (if not required) if something similar to
CASSANDRA-7306 ever happens.
> One way targeted repair
> -----------------------
>
> Key: CASSANDRA-9876
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9876
> Project: Cassandra
> Issue Type: Improvement
> Reporter: sankalp kohli
> Priority: Minor
>
> Many applications use C* by writing to one local DC. The other DC is used
> when the local DC is unavailable. When the local DC becomes available, we
> want to run a targeted repair b/w one endpoint from each DC to minimize the
> data transfer over WAN. In this case, it will be helpful to do a one way
> repair in which data will only be streamed from other DC to local DC instead
> of streaming the data both ways. This will further minimize the traffic over
> WAN. This feature should only be supported if a targeted repair is run
> involving 2 hosts.
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