Do you have the following config set?

<name>hadoop.security.group.mapping</name>
<value>org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback</va
lue>

Setting that was the only way we could reproduce that warning.

If that is the case the work around is simply change that back to
org.apache.hadoop.security.ShellBasedUnixGroupsMapping or have native
libraries so I don't think it would be a blocker. Unless others disagree.

Thanks,
Tom



On 2/5/13 12:40 PM, "Chris Nauroth" <cnauroth@hortonworks.com> wrote:

>I'm testing the RC without the native libs, and I'm seeing warning output
>to stderr on some shell commands, similar to what is reported in
>HDFS-4427.
> (See example below.)  Is this a known issue for the release?
>
>Thanks,
>--Chris
>
>[cnauroth@ubuntu:pts/0] hadoop-0.23.6
>
>> bin/hadoop fs -cat /hello1
>13/02/05 10:38:20 WARN util.NativeCodeLoader: Unable to load native-hadoop
>library for your platform... using builtin-java classes where applicable
>hello
>
>
>On Tue, Feb 5, 2013 at 8:46 AM, Mahadev Konar <mahadev@apache.org> wrote:
>
>> +1 for release. Ran a few sample jobs. (binding).
>>
>> mahadev
>>
>> On Tue, Feb 5, 2013 at 8:06 AM, Daryn Sharp <daryn@yahoo-inc.com> wrote:
>> > +1 (non-binding)
>> >
>> > Built from source and successfully ran jobs on a secure cluster.
>> >
>> > Daryn
>> >
>> > On Feb 5, 2013, at 9:04 AM, Thomas Graves wrote:
>> >
>> >> This vote is supposed to end today.  Please take a look and vote.
>> >>
>> >> Thanks,
>> >> Tom
>> >>
>> >> On 1/29/13 8:29 AM, "Thomas Graves" <tgraves@yahoo-inc.com> wrote:
>> >>
>> >>> I've created another release candidate (RC1) for hadoop-0.23.6 that
>>I
>> >>> would like
>> >>> to release.
>> >>>
>> >>> This release is a sustaining release with several important bug
>>fixes
>> in
>> >>> it. It also contains fixes for the issues found in rc0 - YARN-354,
>> >>> HDFS-4426, and HADOOP-9255
>> >>>
>> >>> The RC is available at:
>> >>> http://people.apache.org/~tgraves/hadoop-0.23.6-candidate-1/
>> >>> The RC tag in svn is here:
>> >>> http://svn.apache.org/viewvc/hadoop/common/tags/release-0.23.6-rc1/
>> >>>
>> >>> The maven artifacts are available via repository.apache.org.
>> >>>
>> >>> Please try the release and vote; the vote will run for the usual 7
>> days.
>> >>>
>> >>>
>> >>> thanks,
>> >>> Tom Graves
>> >>>
>> >>
>> >
>>