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From "Josh Wills (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CRUNCH-330) Use of multiple output counters can be disabled in configuration.
Date Thu, 23 Jan 2014 20:49:43 GMT

     [ https://issues.apache.org/jira/browse/CRUNCH-330?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Josh Wills updated CRUNCH-330:
------------------------------

    Attachment: CRUNCH-330b.patch

I did a riff on this that simplified things somewhat based on the assumption that the TaskIOContext
already caches counters for us, so we don't need to cache it ourselves. I also checked the
disable config parameter earlier in the flow and marked the field as final so that the branch
shouldn't add much overhead.

> Use of multiple output counters can be disabled in configuration.
> -----------------------------------------------------------------
>
>                 Key: CRUNCH-330
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-330
>             Project: Crunch
>          Issue Type: New Feature
>          Components: Core, IO
>            Reporter: Dominique Dierickx
>            Assignee: Josh Wills
>            Priority: Minor
>         Attachments: 0001-working-version.patch, CRUNCH-330b.patch
>
>
> We're having some trouble with the amount of counters that Crunch creates
> when writing to a lot of different output files (slightly more than 120).
> This wouldn't be an issue if we were able to configure the maximum number
> of allowed counters but unfortunately, because we are running an older
> version of Hadoop, doing this is not an option and we are required to patch
> Crunch locally when using a new release to leave out the counters.
> I'm not saying the counters should be removed but maybe it is an option to
> make them configurable without paying too much of a performance penalty?
> I will implement this functionality and submit a patch.



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