[ 
https://issues.apache.org/jira/browse/CASSANDRA-6572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14154253#comment-14154253
 ] 

Jonathan Ellis commented on CASSANDRA-6572:
-------------------------------------------

bq. We also might want to create a downgradesstables tool, to make trying out 
new versions even easier (by making reverting back easier).

I'm even more excited about using this to get us realistic workloads to 
benchmark, than I am about helping people upgrade with confidence.  So, 
downgradesstables is a nice idea but I don't think it obsoletes this.

bq. If we are using this to replicate workloads for replaying a workload, then 
the new stress tool can be better configured to do that. 

Okay, so maybe we shift our goals a bit.  Assuming we can tune newstress to do 
50% inserts to table X, 10% reads from table Y, 40% updates to table Z, doing 
that by hand is a pain.  What if we make this tool gather statistics like that 
from a live cluster, then write out a stress schema + config to emulate it?



> Workload recording / playback
> -----------------------------
>
>                 Key: CASSANDRA-6572
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6572
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core, Tools
>            Reporter: Jonathan Ellis
>            Assignee: Carl Yeksigian
>             Fix For: 2.1.1
>
>         Attachments: 6572-trunk.diff
>
>
> "Write sample mode" gets us part way to testing new versions against a real 
> world workload, but we need an easy way to test the query side as well.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to