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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Updated: (CASSANDRA-1314) snitch that prefers a single replica for all reads to a given key
Date Mon, 26 Jul 2010 04:56:51 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-1314?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis updated CASSANDRA-1314:
--------------------------------------

    Attachment: StaticPreferenceSnitch.java

> snitch that prefers a single replica for all reads to a given key
> -----------------------------------------------------------------
>
>                 Key: CASSANDRA-1314
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1314
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Jonathan Ellis
>            Priority: Minor
>             Fix For: 0.6.4
>
>         Attachments: StaticPreferenceSnitch.java
>
>
> motivation is, if you reduce or eliminate read repair (CASSANDRA-930) then you can cache
about RF times as much data in memory, than if you're scattering reads across all the replicas
equally.
> making this data-center aware would be a nice improvement, but i'm just targetting a
single DC here.

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