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From "Todd Lipcon (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-7753) Support fadvise and sync_data_range in NativeIO, add ReadaheadPool class
Date Mon, 24 Oct 2011 19:20:32 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-7753?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon updated HADOOP-7753:
--------------------------------

    Attachment: hadoop-7753.txt

rebased on trunk, and added catch clause for UnsatisfiedLinkError -- this allows the new java
jar to be used against an older libhadoop.so without crashing (it just disables the new feature)
                
> Support fadvise and sync_data_range in NativeIO, add ReadaheadPool class
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-7753
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7753
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: io, native
>    Affects Versions: 0.23.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>         Attachments: hadoop-7753.txt, hadoop-7753.txt
>
>
> This JIRA adds JNI wrappers for sync_data_range and posix_fadvise. It also implements
a ReadaheadPool class for future use from HDFS and MapReduce.

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