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Posted to commits@cassandra.apache.org by "Ariel Weisberg (JIRA)" <ji...@apache.org> on 2015/05/26 23:09:19 UTC

[jira] [Comment Edited] (CASSANDRA-9485) RangeTombstoneListTest.addAllRandomTest failed on trunk

    [ https://issues.apache.org/jira/browse/CASSANDRA-9485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14559870#comment-14559870 ] 

Ariel Weisberg edited comment on CASSANDRA-9485 at 5/26/15 9:09 PM:
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Stripped it down, parallelized it, and was able to generate a seed that broke it quickly. Although 2 out of the three systems crunched for a while with no luck. You do have to modify the test to use a supplied random to addAllRandomTest so that you can use the seed. There are issues with test execution order that make sharing a random instance across multiple tests sketchy.

The seed I got was 6540729295339161742.



was (Author: aweisberg):
Stripped it down, parallelized it, and was able to generate a seed that broke it quickly. Although 2 out of the three systems crunched for a while with no luck. You do have to modify the test to use a supplied random to addAllRandomTest so that you can use the seed. There are issues with test execution order that make sharing a random instance across multiple tests sketchy.

The seed I got was 6540729295339161742 however when I hard coded it back in I couldn't reproduce the problem. This makes me suspect there is an issue with hashcode/equality or comparison.


> RangeTombstoneListTest.addAllRandomTest failed on trunk
> -------------------------------------------------------
>
>                 Key: CASSANDRA-9485
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9485
>             Project: Cassandra
>          Issue Type: Test
>            Reporter: Ariel Weisberg
>            Assignee: Ariel Weisberg
>
> http://cassci.datastax.com/job/trunk_utest/201/testReport/org.apache.cassandra.db/RangeTombstoneListTest/addAllRandomTest/
> The test is also broken for reproducibility. It doesn't print the seed used for the RNG so it isn't possible to take a failing run and reproduce it.



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