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From "Jothi Padmanabhan (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-5765) Improve memory cache utilization in BackupStore (while supporting Mark/Reset)
Date Mon, 04 May 2009 05:42:30 GMT
Improve memory cache utilization in BackupStore (while supporting Mark/Reset)
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                 Key: HADOOP-5765
                 URL: https://issues.apache.org/jira/browse/HADOOP-5765
             Project: Hadoop Core
          Issue Type: Improvement
            Reporter: Jothi Padmanabhan
            Assignee: Jothi Padmanabhan


HADOOP-5266 introduced support for Mark/Reset of Values Iterator by backing up keys and values
to a BackupStore. The current design does not create a memory segment once a file segment
has been created, even if space is available. The design could be optimized to consider memory
for a new segment irrespective of where the previous segments have been created.

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