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https://issues.apache.org/jira/browse/HADOOP-18074?focusedWorklogId=791684&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-791684
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ASF GitHub Bot logged work on HADOOP-18074:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 16/Jul/22 20:19
            Start Date: 16/Jul/22 20:19
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on PR #4570:
URL: https://github.com/apache/hadoop/pull/4570#issuecomment-1186283078

   :confetti_ball: **+1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
   | +0 :ok: |  reexec  |   0m 57s |  |  Docker mode activated.  |
   |||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  0s |  |  No case conflicting files 
found.  |
   | +0 :ok: |  codespell  |   0m  0s |  |  codespell was not available.  |
   | +1 :green_heart: |  @author  |   0m  0s |  |  The patch does not contain 
any @author tags.  |
   | +1 :green_heart: |  test4tests  |   0m  0s |  |  The patch appears to 
include 1 new or modified test files.  |
   |||| _ branch-3.3.4 Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |  35m 27s |  |  branch-3.3.4 passed  |
   | +1 :green_heart: |  compile  |  18m  1s |  |  branch-3.3.4 passed  |
   | +1 :green_heart: |  checkstyle  |   1m 29s |  |  branch-3.3.4 passed  |
   | +1 :green_heart: |  mvnsite  |   2m  8s |  |  branch-3.3.4 passed  |
   | +1 :green_heart: |  javadoc  |   2m 19s |  |  branch-3.3.4 passed  |
   | +1 :green_heart: |  spotbugs  |   3m  8s |  |  branch-3.3.4 passed  |
   | +1 :green_heart: |  shadedclient  |  27m 15s |  |  branch has no errors 
when building and testing our client artifacts.  |
   |||| _ Patch Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |   1m  2s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  17m 11s |  |  the patch passed  |
   | +1 :green_heart: |  javac  |  17m 11s |  |  the patch passed  |
   | +1 :green_heart: |  blanks  |   0m  0s |  |  The patch has no blanks 
issues.  |
   | +1 :green_heart: |  checkstyle  |   1m 22s |  |  the patch passed  |
   | +1 :green_heart: |  mvnsite  |   2m  4s |  |  the patch passed  |
   | +1 :green_heart: |  javadoc  |   2m 14s |  |  the patch passed  |
   | +1 :green_heart: |  spotbugs  |   3m  3s |  |  the patch passed  |
   | +1 :green_heart: |  shadedclient  |  26m 59s |  |  patch has no errors 
when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |  17m 53s |  |  hadoop-common in the patch 
passed.  |
   | +1 :green_heart: |  asflicense  |   1m 32s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 163m 34s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4570/1/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/4570 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient spotbugs checkstyle codespell |
   | uname | Linux a421fc0f8021 4.15.0-65-generic #74-Ubuntu SMP Tue Sep 17 
17:06:04 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | branch-3.3.4 / d2943430ffba156e1d4681e3abc67438543c1249 |
   | Default Java | Private Build-1.8.0_312-8u312-b07-0ubuntu1~18.04-b07 |
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4570/1/testReport/ |
   | Max. process+thread count | 2333 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common U: 
hadoop-common-project/hadoop-common |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4570/1/console |
   | versions | git=2.17.1 maven=3.6.0 spotbugs=4.2.2 |
   | Powered by | Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   




Issue Time Tracking
-------------------

    Worklog Id:     (was: 791684)
    Time Spent: 3h 50m  (was: 3h 40m)

> Partial/Incomplete groups list can be returned in LDAP groups lookup
> --------------------------------------------------------------------
>
>                 Key: HADOOP-18074
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18074
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>            Reporter: Philippe Lanoe
>            Assignee: Larry McCay
>            Priority: Major
>              Labels: Reviewed, pull-request-available
>             Fix For: 3.4.0, 3.3.5
>
>          Time Spent: 3h 50m
>  Remaining Estimate: 0h
>
> Hello,
> The  
> {code:java}
> Set<String> doGetGroups(String user, int goUpHierarchy) {code}
> method in
> [https://github.com/apache/hadoop/blob/b27732c69b114f24358992a5a4d170bc94e2ceaf/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/LdapGroupsMapping.java#L476]
> Looks like having an issue if in the middle of the loop a *NamingException* 
> is caught:
> The groups variable is not reset in the catch clause and therefore the 
> fallback lookup cannot be executed (when goUpHierarchy==0 at least):
> ||
> {code:java}
> if (groups.isEmpty() || goUpHierarchy > 0) {        
>     groups = lookupGroup(result, c, goUpHierarchy);
> }
> {code}
>  
> Consequence is that only a partial list of groups is returned, which is not 
> correct.
> Following options could be used as solution:
>  * Reset the group to an empty list in the catch clause, to trigger the 
> fallback query.
>  * Add an option flag to enable ignoring groups with Naming Exception (since 
> they are not groups most probably)
> Independently, would any issue also occur (and therefore full list cannot be 
> returned) in the first lookup as well as in the fallback query, the method 
> should/could(with option flag) throw an Exception, because in some scenario 
> accuracy is important.



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