cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Ryan McGuire (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-6074) Read regression in 2.0.1
Date Sat, 21 Sep 2013 00:18:52 GMT
Ryan McGuire created CASSANDRA-6074:
---------------------------------------

             Summary: Read regression in 2.0.1
                 Key: CASSANDRA-6074
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6074
             Project: Cassandra
          Issue Type: Bug
            Reporter: Ryan McGuire
         Attachments: stress 2.0.0 vs 2.0.01.png

I'm seeing a regression in stress reads introduced in 2.0.1.

Setup
 * 4 node cluster using default settings
 * Write: -F 30000000 -n 30000000 -i 5 -l 2
 * Read: -n 30000000 -o read -i 5

I tried this three times on 2.0.0 and on 2.0.1(tentative; eb96db6c)

2.0.0 is fine, but 2.0.1 timed out of it's read 2 out of the 3 times:

!stress 2.0.0 vs 2.0.01.png!

[Data can be viewed here|http://ryanmcguire.info/ds/graph/graph.html?stats=stats.2.0.0v2.0.1.json&metric=interval_op_rate&operation=stress-read&smoothing=4]

I will bisect and update this when I find the commit that introduced this.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message