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https://issues.apache.org/jira/browse/CASSANDRA-6157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14376550#comment-14376550
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sankalp kohli commented on CASSANDRA-6157:
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Look at Jonathan comment.
"Requires some string parsing in Config, but is backwards compatible without
adding a two-layer approach of "turn it on, but turn it back off sometimes.""
> Selectively Disable hinted handoff for a data center
> ----------------------------------------------------
>
> Key: CASSANDRA-6157
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6157
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: sankalp kohli
> Assignee: sankalp kohli
> Priority: Minor
> Fix For: 2.0.6
>
> Attachments: super-csv-2.1.0.jar, trunk-6157-v2.diff,
> trunk-6157-v3.diff, trunk-6157-v4.diff, trunk-6157-v5.diff, trunk-6157.txt
>
>
> Cassandra supports disabling the hints or reducing the window for hints.
> It would be helpful to have a switch which stops hints to a down data center
> but continue hints to other DCs.
> This is helpful during data center fail over as hints will put more
> unnecessary pressure on the DC taking double traffic. Also since now
> Cassandra is under reduced reduncany, we don't want to disable hints within
> the DC.
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