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From "Ryan McGuire (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-5243) cassandra-stress aggregate statistics
Date Tue, 12 Feb 2013 00:41:13 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-5243?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ryan McGuire updated CASSANDRA-5243:
------------------------------------

    Attachment: trunk-5243.txt
    
> cassandra-stress aggregate statistics
> -------------------------------------
>
>                 Key: CASSANDRA-5243
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5243
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>            Reporter: Ryan McGuire
>         Attachments: trunk-5243.txt
>
>
> cassandra-stress should output some aggregated statistics for the data that it outputs.
In testing the performance of a Cassandra cluster it's useful to look at the performance by
establishing what the average read/write rate is during the middle 80% of a stress job (the
first and last 10% being outliers as the cluster is starting and stopping a big operation.)
> I've implemented this to add these stats to the end of the cassandra-stress output. It
also adds a command line option to turn it off it's not desired.
> My branch here: https://github.com/EnigmaCurry/cassandra/commit/157993d087015b17267e613a458d5bc8bd36a888

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