[jira] [Resolved] (HDFS-5201) NativeIO: consolidate getrlimit into NativeIO#getMemlockLimit

["Colin Patrick McCabe (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-5201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Colin Patrick McCabe resolved HDFS-5201.
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    Resolution: Fixed
    
> NativeIO: consolidate getrlimit into NativeIO#getMemlockLimit
> -------------------------------------------------------------
>
>                 Key: HDFS-5201
>                 URL: https://issues.apache.org/jira/browse/HDFS-5201
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode
>    Affects Versions: HDFS-4949
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>             Fix For: HDFS-4949
>
>         Attachments: HDFS-5201-caching.001.patch, HDFS-5201-caching.002.patch
>
>
> Let's consolidate {{NativeIO#POSIX#getrlimit}} into {{NativeIO#getMemlockLimit}}.  This avoids a few issues with the current function: it is not available on Windows, it relied on Linux-specific constants, and it currently returns a string which has to be parsed rather than a long.

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