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From "Matei Zaharia (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-5075) Potential infinite loop in updateMinSlots
Date Sat, 17 Jan 2009 01:43:59 GMT
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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