[jira] [Comment Edited] (CASSANDRA-9764) dtest for many UPDATE batches, low contention fails on trunk

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-9764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14641023#comment-14641023 ] 

Jonathan Ellis edited comment on CASSANDRA-9764 at 7/24/15 8:21 PM:
--------------------------------------------------------------------

[~mambocab] is this still a problem with 9863 committed?


was (Author: jbellis):
[~enigmacurry] is this still a problem with 9863 committed?

> dtest for many UPDATE batches, low contention fails on trunk
> ------------------------------------------------------------
>
>                 Key: CASSANDRA-9764
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9764
>             Project: Cassandra
>          Issue Type: Sub-task
>            Reporter: Jim Witschey
>            Assignee: Sylvain Lebresne
>            Priority: Blocker
>             Fix For: 3.0 alpha 1
>
>
> {{paxos_tests.py:TestPaxos.contention_test_multi_iterations}} fails consistently on trunk ([cassci history|http://cassci.datastax.com/view/trunk/job/trunk_dtest/lastSuccessfulBuild/testReport/paxos_tests/TestPaxos/contention_test_multi_iterations/history/]). The test works by creating 8 workers, each of which increments an integer 100 times using UPDATE. Based on the test failures, it looks like 2 or 3 of the updates are consistently dropped. Other dtests that don't run as many iterations but have more contention succeed.
> I'm assigning you, [~slebresne], because you wrote the test and were the last person to modify it, but feel free to reassign. Thanks!



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