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From "sankalp kohli (JIRA)" <>
Subject [jira] [Updated] (CASSANDRA-6157) Selectively Disable hinted handoff for a data center
Date Wed, 12 Feb 2014 01:19:19 GMT


sankalp kohli updated CASSANDRA-6157:

    Attachment: super-csv-2.1.0.jar

I have done the changes based on Jonathan comments. I am using Super CSV library(
I am not sure what is the exact procedure of adding new jars. I have added the dependency
in build.xml. Also I am attaching the jar in case it needs to go in lib. 

> Selectively Disable hinted handoff for a data center
> ----------------------------------------------------
>                 Key: CASSANDRA-6157
>                 URL:
>             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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