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From "sankalp kohli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-6157) Selectively Disable hinted handoff for a data center
Date Wed, 08 Jan 2014 21:34:50 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13865920#comment-13865920
] 

sankalp kohli commented on CASSANDRA-6157:
------------------------------------------

Looks good except that I did not see this change in v3 patch
Renamed initializeCustomConfig to configHintedHandoff as custom config sounds too general.

> 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.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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