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From "Josh Wills (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CRUNCH-292) Hack around Hadoop2's job counter limits
Date Sat, 02 Nov 2013 02:04:17 GMT

     [ https://issues.apache.org/jira/browse/CRUNCH-292?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Josh Wills resolved CRUNCH-292.
-------------------------------

       Resolution: Fixed
    Fix Version/s: 0.8.0

Pushed to master.

> Hack around Hadoop2's job counter limits
> ----------------------------------------
>
>                 Key: CRUNCH-292
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-292
>             Project: Crunch
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.7.0
>            Reporter: Josh Wills
>            Assignee: Josh Wills
>             Fix For: 0.8.0
>
>         Attachments: CRUNCH-292.patch, CRUNCH-292b.patch
>
>
> Hadoop2 introduces limits in the Counters library that set a maximum of 120 counters
per job. These limits are really hard to hack around (for some good reasons); the only real
way to override them is to update mapred-site.xml and restart the cluster.
> This presents a challenge for Crunch's in-memory implementation, which uses the Counters
library in local mode and can potentially generate well more than 120 counters when testing
long pipelines. 



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