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https://issues.apache.org/jira/browse/KAFKA-1008?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jay Kreps resolved KAFKA-1008.
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Resolution: Fixed
Checked in on 0.8 and trunk.
> Unmap before resizing
> ---------------------
>
> Key: KAFKA-1008
> URL: https://issues.apache.org/jira/browse/KAFKA-1008
> Project: Kafka
> Issue Type: Bug
> Components: core, log
> Affects Versions: 0.8
> Environment: Windows, Linux, Mac OS
> Reporter: Elizabeth Wei
> Assignee: Jay Kreps
> Labels: patch
> Fix For: 0.8
>
> Attachments: KAFKA-0.8-1008-v7.patch, KAFKA-0.8-1008-v8.patch,
> KAFKA-1008-v6.patch, KAFKA-1008-v9-trunk.patch, KAFKA-trunk-1008-v7.patch,
> unmap-v5.patch
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> While I was studying how MappedByteBuffer works, I saw a sharing runtime
> exception on Windows. I applied what I learned to generate a patch which uses
> an internal open JDK API to solve this problem.
> Following Jay's advice, I made a helper method called tryUnmap().
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