[jira] [Updated] (CASSANDRA-13773) cassandra-stress writes even data when n=0

["Eduard Tudenhoefner (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-13773?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eduard Tudenhoefner updated CASSANDRA-13773:
--------------------------------------------
    Reviewer: Stefania
      Status: Patch Available  (was: In Progress)

> cassandra-stress writes even data when n=0
> ------------------------------------------
>
>                 Key: CASSANDRA-13773
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13773
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Stress
>            Reporter: Eduard Tudenhoefner
>            Assignee: Eduard Tudenhoefner
>            Priority: Minor
>             Fix For: 3.0.15
>
>
> This is very unintuitive as
> {code}
> cassandra-stress write n=0 -rate threads=1
> {code}
> will do inserts even with *n=0*. I guess most people won't ever run with *n=0* but this is a nice shortcut for creating some schema without using *cqlsh*
> This is happening because we're writing *50k* rows of warmup data as can be seen below:
> {code}
> cqlsh> select count(*) from keyspace1.standard1 ;
>  count
> -------
>  50000
> (1 rows)
> {code}
> We can avoid writing warmup data using 
> {code}
> cassandra-stress write n=0 no-warmup -rate threads=1
> {code}
> but I would still expect to have *0* rows written when specifying *n=0*.



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