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From "Ariel Weisberg (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-6976) Determining replicas to query is very slow with large numbers of nodes or vnodes
Date Wed, 05 Nov 2014 23:15:37 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-6976?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ariel Weisberg updated CASSANDRA-6976:
--------------------------------------
    Attachment:     (was: GetRestrictedRanges.java)

> Determining replicas to query is very slow with large numbers of nodes or vnodes
> --------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-6976
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6976
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Benedict
>            Assignee: Ariel Weisberg
>              Labels: performance
>             Fix For: 2.1.2
>
>         Attachments: jmh_output.txt, make_jmh_work.patch
>
>
> As described in CASSANDRA-6906, this can be ~100ms for a relatively small cluster with
vnodes, which is longer than it will spend in transit on the network. This should be much
faster.



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