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https://issues.apache.org/jira/browse/HADOOP-13988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15823068#comment-15823068
 ] 

Hadoop QA commented on HADOOP-13988:
------------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
13s{color} | {color:blue} Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green}  0m  
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:red}-1{color} | {color:red} test4tests {color} | {color:red}  0m  
0s{color} | {color:red} 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} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 12m 
43s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  9m 
33s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
28s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  
0s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
18s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 
25s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
46s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
36s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  9m 
12s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  9m 
12s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 28s{color} | {color:orange} hadoop-common-project/hadoop-common: The patch 
generated 1 new + 14 unchanged - 0 fixed = 15 total (was 14) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
58s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
18s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m 
30s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
47s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  8m 
25s{color} | {color:green} hadoop-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
31s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 51m  2s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:a9ad5d6 |
| JIRA Issue | HADOOP-13988 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12847518/HADOOP-13988.patch |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux 6c1b6e6f63ed 3.13.0-106-generic #153-Ubuntu SMP Tue Dec 6 
15:44:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh 
|
| git revision | trunk / 2604e82 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/11441/artifact/patchprocess/diff-checkstyle-hadoop-common-project_hadoop-common.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/11441/testReport/ |
| modules | C: hadoop-common-project/hadoop-common U: 
hadoop-common-project/hadoop-common |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/11441/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> KMSClientProvider does not work with WebHDFS and Apache Knox w/ProxyUser
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-13988
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13988
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: common, kms
>    Affects Versions: 2.8.0, 2.7.3
>         Environment: HDP 2.5.3.0 
> WebHDFSUser --> Knox --> HA NameNodes(WebHDFS) --> DataNodes
>            Reporter: Greg Senia
>         Attachments: HADOOP-13988.patch
>
>
> After upgrading to HDP 2.5.3.0 noticed that all of the KMSClientProvider 
> issues have not been resolved. We put a test build together and applied 
> HADOOP-13558 and HADOOP-13749 these two fixes did still not solve the issue 
> with requests coming from WebHDFS through to Knox to a TDE zone.
> So we added some debug to our build and determined effectively what is 
> happening here is a double proxy situation which does not seem to work. So we 
> propose the following fix in getActualUgi Method:
> {noformat}
>      }
>      // Use current user by default
>      UserGroupInformation actualUgi = currentUgi;
>      if (currentUgi.getRealUser() != null) {
>        // Use real user for proxy user
>        if (LOG.isDebugEnabled()) {
>          LOG.debug("using RealUser for proxyUser);
>       }
>        actualUgi = currentUgi.getRealUser();
>        if (getDoAsUser() != null) {
>                 if (LOG.isDebugEnabled()) {
>               LOG.debug("doAsUser exists");
>               LOG.debug("currentUGI realUser shortName: {}", 
> currentUgi.getRealUser().getShortUserName());
>               LOG.debug("processUGI loginUser shortName: {}", 
> UserGroupInformation.getLoginUser().getShortUserName());
>           }
>         if (currentUgi.getRealUser().getShortUserName() != 
> UserGroupInformation.getLoginUser().getShortUserName()) {
>                 if (LOG.isDebugEnabled()) {
>                       LOG.debug("currentUGI.realUser does not match 
> UGI.processUser);
>                 }
>                 actualUgi = UserGroupInformation.getLoginUser();
>                 if (LOG.isDebugEnabled()) {
>                       LOG.debug("LoginUser for Proxy: {}", 
> actualUgi.getLoginUser());
>                 }
>         }
>        }
>       
>      } else if (!currentUgiContainsKmsDt() &&
>          !currentUgi.hasKerberosCredentials()) {
>        // Use login user for user that does not have either
>        // Kerberos credential or KMS delegation token for KMS operations
>        if (LOG.isDebugEnabled()) {
>          LOG.debug("using loginUser no KMS Delegation Token no Kerberos 
> Credentials");
>       }
>        actualUgi = currentUgi.getLoginUser();
>      }
>      return actualUgi;
>    }
> {noformat}



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