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From "Russell Alexander Spitzer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-7620) Allow user stress commands to specify the seed on the command line
Date Tue, 29 Jul 2014 15:51:38 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-7620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14077860#comment-14077860
] 

Russell Alexander Spitzer commented on CASSANDRA-7620:
------------------------------------------------------

Seed is the same each time.

I'm using the default exaple user profile. It has 
{code}
Uniform for  all of the columns except one clustering column
population:gaussian(1.1000)

Inside of insert the distributions are uniform except for
perbatch: ~exp(1..3)/4
{code}

So if i set n= the population size of the primary key would i get deterministic results? Or
can you only get deterministic results with a fixed distribution?

> Allow user stress commands to specify the seed on the command line
> ------------------------------------------------------------------
>
>                 Key: CASSANDRA-7620
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7620
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>            Reporter: Russell Alexander Spitzer
>            Assignee: Russell Alexander Spitzer
>            Priority: Trivial
>         Attachments: CASSANDRA-7620-2.1.patch
>
>
> Although I don't want to add to parameter bloat, it would be really useful if the seed
for a particular profile could be set on the command line. This makes it easier to run the
same command with many different seed settings without modifying the profile file.



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