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From "Akira AJISAKA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8642) io.native.lib.available only controls zlib
Date Wed, 20 Aug 2014 05:50:19 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14103429#comment-14103429

Akira AJISAKA commented on HADOOP-8642:

The test failures seem to be unrelated to the patch.

> io.native.lib.available only controls zlib
> ------------------------------------------
>                 Key: HADOOP-8642
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8642
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: native
>    Affects Versions: 2.0.0-alpha
>            Reporter: Eli Collins
>            Assignee: Akira AJISAKA
>         Attachments: HADOOP-8642.2.patch, HADOOP-8642.3.patch, HADOOP-8642.patch
> Per core-default.xml {{io.native.lib.available}} indicates "Should native hadoop libraries,
if present, be used" however it looks like it only affects zlib. Since we always load the
native library this means we may use native libraries even if io.native.lib.available is set
to false.
> Let's make the flag to work as advertised - rather than always load the native hadoop
library we only attempt to load the library (and report that native is available) if this
flag is set. Since io.native.lib.available defaults to true the default behavior should remain
unchanged (except that now we wont actually try to load the library if this flag is disabled).

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