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Posted to common-dev@hadoop.apache.org by "Matei Zaharia (JIRA)" <ji...@apache.org> on 2009/01/17 02:43:59 UTC

[jira] Updated: (HADOOP-5075) Potential infinite loop in updateMinSlots

     [ https://issues.apache.org/jira/browse/HADOOP-5075?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matei Zaharia updated HADOOP-5075:
----------------------------------

    Status: Patch Available  (was: Open)

> Potential infinite loop in updateMinSlots
> -----------------------------------------
>
>                 Key: HADOOP-5075
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5075
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/fair-share
>            Reporter: Matei Zaharia
>            Priority: Blocker
>         Attachments: hadoop-5075.patch
>
>
> We ran into a problem at Facebook where the updateMinSlots loop in the scheduler was repeating infinitely. This might happen if, due to rounding, we are unable to assign the last few slots in a pool. This patch adds a break statement to ensure that the loop exists if it hasn't managed to assign any slots.

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