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From "Lyuben Todorov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-6157) Selectively Disable hinted handoff for a data center
Date Mon, 17 Feb 2014 04:32:19 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13902945#comment-13902945
] 

Lyuben Todorov commented on CASSANDRA-6157:
-------------------------------------------

Here's the [2.0 branch|https://github.com/lyubent/cassandra/tree/6157_cassandra-2.0] commit
on 80d2e655eb67c3b970926cbee4bbbfd34ee9a286

> 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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