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Posted to hdfs-issues@hadoop.apache.org by "Colin Patrick McCabe (JIRA)" <ji...@apache.org> on 2014/03/13 02:20:43 UTC

[jira] [Updated] (HDFS-6097) zero-copy reads are incorrectly disabled on file offsets above 2GB

     [ https://issues.apache.org/jira/browse/HDFS-6097?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Colin Patrick McCabe updated HDFS-6097:
---------------------------------------

    Attachment: HDFS-6097.001.patch

> zero-copy reads are incorrectly disabled on file offsets above 2GB
> ------------------------------------------------------------------
>
>                 Key: HDFS-6097
>                 URL: https://issues.apache.org/jira/browse/HDFS-6097
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client
>    Affects Versions: 2.4.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>         Attachments: HDFS-6097.001.patch
>
>
> Zero-copy reads are incorrectly disabled on file offsets above 2GB due to some code that is supposed to disable zero-copy reads on offsets in block files greater than 2GB (because MappedByteBuffer segments are limited to that size).



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