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https://issues.apache.org/jira/browse/HADOOP-13669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15569329#comment-15569329
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Hadoop QA commented on HADOOP-13669:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
16s{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: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} xml {color} | {color:green}  0m  
1s{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
15s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}  0m 47s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:9560f25 |
| JIRA Issue | HADOOP-13669 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12832941/HADOOP-13669.addendum.patch
 |
| Optional Tests |  asflicense  xml  |
| uname | Linux 9e48ebf421df 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed 
Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh 
|
| git revision | trunk / 6476934 |
| modules | C: hadoop-common-project/hadoop-kms U: 
hadoop-common-project/hadoop-kms |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/10746/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> KMS Server should log exceptions before throwing
> ------------------------------------------------
>
>                 Key: HADOOP-13669
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13669
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: kms
>            Reporter: Xiao Chen
>            Assignee: Suraj Acharya
>              Labels: supportability
>             Fix For: 2.8.0, 3.0.0-alpha2
>
>         Attachments: HADOOP-13369.2.patch, HADOOP-13369.patch, 
> HADOOP-13369.patch.1, HADOOP-13669.addendum.patch
>
>
> In some recent investigation, it turns out when KMS throws an exception (into 
> tomcat), it's not logged anywhere and we can only see the exception message 
> from client-side, but not the stacktrace. Logging the stacktrance would help 
> debugging.



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