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From "T Jake Luciani (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-12490) Add sequence distribution type to cassandra stress
Date Fri, 14 Oct 2016 13:48:20 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-12490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15575377#comment-15575377
] 

T Jake Luciani commented on CASSANDRA-12490:
--------------------------------------------

Ah you are right!  I'm not sure why but for runs with an older version of stress I was getting
read errors and assumed it was validation but perhaps it's a different bug.

> Add sequence distribution type to cassandra stress
> --------------------------------------------------
>
>                 Key: CASSANDRA-12490
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12490
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>            Reporter: Ben Slater
>            Assignee: Ben Slater
>            Priority: Minor
>             Fix For: 3.10
>
>         Attachments: 12490-trunk.patch, 12490.yaml, cqlstress-seq-example.yaml
>
>
> When using the write command, cassandra stress sequentially generates seeds. This ensures
generated values don't overlap (unless the sequence wraps) providing more predictable number
of inserted records (and generating a base set of data without wasted writes).
> When using a yaml stress spec there is no sequenced distribution available. It think
it would be useful to have this for doing initial load of data for testing 



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