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From "Sammy Yu (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (CASSANDRA-300) Enumerate useful consistency options for read/write calls
Date Thu, 23 Jul 2009 04:21:14 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-300?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sammy Yu reassigned CASSANDRA-300:
----------------------------------

    Assignee: Sammy Yu

> Enumerate useful consistency options for read/write calls
> ---------------------------------------------------------
>
>                 Key: CASSANDRA-300
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-300
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Michael Greene
>            Assignee: Sammy Yu
>             Fix For: 0.4
>
>
> Currently, a user has to specify an int for the number of nodes to block_for.  As discussed
on IRC, there are only a few options that a user would want, so this would be better encapsulated
by an enum.
> enum  ConsistencyLevel {
>     ZERO = 0,
>     ONE = 1,
>     QUORUM = 2,
>     ALL = 3,
> }
> This could be extended with a fifth option, CUSTOM = 4, if custom specifications are
desired
> struct ConsistencyRequest {
>     1: required ConsistencyLevel level,
>     2: optional int nodes
> }

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