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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5049) Add JNI mlock support
Date Wed, 07 Aug 2013 19:31:48 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13732621#comment-13732621

Colin Patrick McCabe commented on HDFS-5049:

bq. If the file is memory mapped by JAVA API(FileChannel.map), how to get the virtual memory
address to be used by mlock/munlock?

> Add JNI mlock support
> ---------------------
>                 Key: HDFS-5049
>                 URL: https://issues.apache.org/jira/browse/HDFS-5049
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, namenode
>            Reporter: Colin Patrick McCabe
>            Assignee: Andrew Wang
> Add support for {{mlock}} and {{munlock}}, for use in caching.

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