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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8642) io.native.lib.available only controls zlib
Date Fri, 13 Feb 2015 23:17:12 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14320945#comment-14320945
] 

Hadoop QA commented on HADOOP-8642:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12698829/HADOOP-8642.4.patch
  against trunk revision 8752568.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-common-project/hadoop-common:

                  org.apache.hadoop.security.token.delegation.web.TestWebDelegationToken

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/5691//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/5691//console

This message is automatically generated.

> 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-8642.4.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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