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https://issues.apache.org/jira/browse/HADOOP-9436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13616955#comment-13616955
]
Hadoop QA commented on HADOOP-9436:
-----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12575748/HADOOP-9436.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:red}-1 tests included{color}. The patch doesn't appear to include
any new or modified tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
{color:red}-1 javac{color}. The applied patch generated 1372 javac
compiler warnings (more than the trunk's current 1371 warnings).
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
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 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-common-project/hadoop-common.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/2375//testReport/
Javac warnings:
https://builds.apache.org/job/PreCommit-HADOOP-Build/2375//artifact/trunk/patchprocess/diffJavacWarnings.txt
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/2375//console
This message is automatically generated.
> NetgroupCache does not refresh membership correctly
> ---------------------------------------------------
>
> Key: HADOOP-9436
> URL: https://issues.apache.org/jira/browse/HADOOP-9436
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 3.0.0, 2.0.3-alpha, 0.23.7
> Reporter: Kihwal Lee
> Assignee: Kihwal Lee
> Attachments: HADOOP-9436.patch
>
>
> NetgroupCache is used to get around the problem of inability to obtain a
> single user-to-groups mapping from netgroup. For example, the ACL code
> pre-populates this cache, so that any user-group mapping can be resolved for
> all groups defined in the service.
> However, the current refresh code only adds users to existing groups, so a
> loss of group membership won't take effect. This is because the internal
> user-groups mapping cache is never invalidated. If this is simply invalidated
> on clear(), the cache entries will build up correctly, but user-group
> resolution may fail during refresh, resulting in incorrectly denying accesses.
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