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From "Paulo Motta (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-7238) Nodetool Status performance is much slower with VNodes On
Date Wed, 10 Feb 2016 15:26:18 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-7238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15140989#comment-15140989
] 

Paulo Motta commented on CASSANDRA-7238:
----------------------------------------

Sorry, this review fall of my radar. Patch and tests look good, marking as ready to commit!
Thanks!

> Nodetool Status performance is much slower with VNodes On
> ---------------------------------------------------------
>
>                 Key: CASSANDRA-7238
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7238
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Tools
>         Environment: 1000 M1.Large Ubuntu 12.04
>            Reporter: Russell Alexander Spitzer
>            Assignee: Yuki Morishita
>            Priority: Minor
>             Fix For: 2.1.x, 2.2.x, 3.0.x, 3.x
>
>
> Nodetool status on a 1000 Node cluster without vnodes returns in several seconds. With
vnodes on (256) there are OOM errors with the default XMX of 32. Adjusting the XMX to 128
allows nodetool status to complete but the execution takes roughly 10 minutes.
> Tested
> {code}
> XMX    |      Status
> 32     |    OOM
> 64     |    OOM: GC Overhead
> 128    |    Finishes in ~10 minutes
> 500    |    Finishes in ~10 minutes
> 1000   |    Finishes in ~10 minutes
> {code}



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