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Posted to dev@pig.apache.org by "Rohini Palaniswamy (JIRA)" <ji...@apache.org> on 2012/10/05 19:10:04 UTC

[jira] [Commented] (PIG-2898) Parallel execution of e2e tests

    [ https://issues.apache.org/jira/browse/PIG-2898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13470469#comment-13470469 ] 

Rohini Palaniswamy commented on PIG-2898:
-----------------------------------------

+1 nonbinding. 

https://cwiki.apache.org/confluence/display/PIG/HowToTest#HowToTest-HowtoRune2eTests needs to be updated with the following information after the patch goes in. 
   * the options fork.factor.conf.file (number of parallel forks for the test files) and fork.factor.group (number of forks for groups within a test file)
   * Parallel::Forkmanager perl module installation 
                
> Parallel execution of e2e tests
> -------------------------------
>
>                 Key: PIG-2898
>                 URL: https://issues.apache.org/jira/browse/PIG-2898
>             Project: Pig
>          Issue Type: Improvement
>          Components: e2e harness
>    Affects Versions: 0.10.0
>            Reporter: Andrey Klochkov
>            Assignee: Ivan A. Veselovsky
>              Labels: test
>         Attachments: PIG-2898-branch-0.10-6-final.patch, PIG-2898-trunk-3.patch, PIG-2898-trunk-6-final.patch
>
>
> Today it takes ~19 hours to run the full set of e2e tests in mapred mode. The bottleneck here is the client side, and per our observations it can help a lot if the e2e harness would be able to run tests in parallel threads.
> We prototyped changes in e2e harness allowing to run tests in a configurable number of threads. Preliminary results show more than 6x reduction in execution time when using a small 3-nodes M/R cluster with modest configuration. Going to share a patch shortly.

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