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https://issues.apache.org/jira/browse/CASSANDRA-6157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13869644#comment-13869644
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Jonathan Ellis commented on CASSANDRA-6157:
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bq. "dc1,dc2" or "dc1"- This can be done. In Java, this will come as a string
dc1,dc2 or dc1(without quotes") . One of the problems with this is that if
someone has a typo in true or false, it will treat is as a data center name.
I'm okay with that downside. I think this makes the most sense of the
alternatives.
Brandon says we do support spaces in DC names, so we would need to allow
escaping those. At that point it probably makes more sense to use a "real" csv
library rather than hand-rolling it.
> 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: 2.0.5
>
> Attachments: trunk-6157-v2.diff, trunk-6157-v3.diff,
> trunk-6157-v4.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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