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https://issues.apache.org/jira/browse/HADOOP-6864?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12974441#action_12974441
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Erik Steffl commented on HADOOP-6864:
-------------------------------------
HADOOP-6864-0.22-3.patch fixes test-patch issues:
- member functions in NetgroupCache are static now (they only access static
members) - per findbug findings
- Groups.getUserToGroupsMappingService is marked synchronized - per findbug
findings
Patch-test output:
[exec] +1 overall.
[exec]
[exec] +1 @author. The patch does not contain any @author tags.
[exec]
[exec] +1 tests included. The patch appears to include 4 new or
modified tests.
[exec]
[exec] +1 javadoc. The javadoc tool did not generate any warning
messages.
[exec]
[exec] +1 javac. The applied patch does not increase the total number
of javac compiler warnings.
[exec]
[exec] +1 findbugs. The patch does not introduce any new Findbugs
warnings.
[exec]
[exec] +1 release audit. The applied patch does not increase the
total number of release audit warnings.
[exec]
[exec] +1 system test framework. The patch passed system test
framework compile.
> Provide a JNI-based implementation of ShellBasedUnixGroupsNetgroupMapping
> (implementation of GroupMappingServiceProvider)
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-6864
> URL: https://issues.apache.org/jira/browse/HADOOP-6864
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Reporter: Erik Steffl
> Fix For: 0.22.0
>
> Attachments: HADOOP-6864-0.20.1xx-1.patch,
> HADOOP-6864-0.20.1xx.patch, HADOOP-6864-0.22-1.patch,
> HADOOP-6864-0.22-2.patch, HADOOP-6864-0.22-3.patch, HADOOP-6864-0.22.patch
>
>
> The netgroups implementation of GroupMappingServiceProvider (see
> ShellBasedUnixGroupsNetgroupMapping.java) does a fork of a unix command to
> get the netgroups of a user. Since the group resolution happens in the
> servers, this might be costly. This jira aims at providing a JNI-based
> implementation for GroupMappingServiceProvider.
> Note that this is similar to what
> https://issues.apache.org/jira/browse/HADOOP-6818 does for implementation of
> GroupMappingServiceProvider that supports only unix groups.
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