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Date: Fri, 5 Jun 2015 20:12:00 +0000 (UTC)
From: "T Jake Luciani (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (CASSANDRA-9558) Cassandra-stress regression in
 2.2
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    [ https://issues.apache.org/jira/browse/CASSANDRA-9558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14575158#comment-14575158 ] 

T Jake Luciani commented on CASSANDRA-9558:
-------------------------------------------

My guess is it's CASSANDRA-9493 

This is the java driver used by stress.  the last time I tried it the performance was much lower in stress because the driver uses a single connection to send many messages, vs multiple connections.

> Cassandra-stress regression in 2.2
> ----------------------------------
>
>                 Key: CASSANDRA-9558
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9558
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Alan Boudreault
>            Priority: Blocker
>         Attachments: 2.1.log, 2.2.log
>
>
> We are seeing some regression in performance when using cassandra-stress 2.2. You can see the difference at this url:
> http://riptano.github.io/cassandra_performance/graph_v5/graph.html?stats=stress_regression.json&metric=op_rate&operation=1_write&smoothing=1&show_aggregates=true&xmin=0&xmax=108.57&ymin=0&ymax=168147.1
> The cassandra version of the cluster doesn't seem to have any impact. 
> //cc [~tjake] [~benedict]


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