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https://issues.apache.org/jira/browse/HADOOP-14791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16252140#comment-16252140
 ] 

Hadoop QA commented on HADOOP-14791:
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| (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:brown} Prechecks {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:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 16m 
 8s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 12m 
31s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
14s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
20s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}  
9m 26s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
24s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
16s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
13s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 11m 
42s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 11m 
42s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
13s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
19s{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} shadedclient {color} | {color:green}  
8m 56s{color} | {color:green} patch has no errors when building and testing our 
client artifacts. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  0m 
34s{color} | {color:red} hadoop-common-project/hadoop-minikdc generated 1 new + 
0 unchanged - 0 fixed = 1 total (was 0) {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
16s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
25s{color} | {color:green} hadoop-minikdc in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
27s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 63m 13s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| FindBugs | module:hadoop-common-project/hadoop-minikdc |
|  |  Exceptional return value of java.io.File.delete() ignored in 
org.apache.hadoop.minikdc.MiniKdc.main(String[])  At MiniKdc.java:ignored in 
org.apache.hadoop.minikdc.MiniKdc.main(String[])  At MiniKdc.java:[line 113] |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:5b98639 |
| JIRA Issue | HADOOP-14791 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12882765/HADOOP-14791.001.patch
 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  shadedclient  findbugs  checkstyle  |
| uname | Linux 23bb7a3e0c68 3.13.0-135-generic #184-Ubuntu SMP Wed Oct 18 
11:55:51 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 18621af |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_151 |
| findbugs | v3.1.0-RC1 |
| findbugs | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13677/artifact/out/new-findbugs-hadoop-common-project_hadoop-minikdc.html
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13677/testReport/ |
| Max. process+thread count | 297 (vs. ulimit of 5000) |
| modules | C: hadoop-common-project/hadoop-minikdc U: 
hadoop-common-project/hadoop-minikdc |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/13677/console |
| Powered by | Apache Yetus 0.7.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> SimpleKdcServer: Fail to delete krb5 conf
> -----------------------------------------
>
>                 Key: HADOOP-14791
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14791
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: minikdc
>    Affects Versions: 3.0.0-beta1
>            Reporter: John Zhuge
>            Assignee: John Zhuge
>            Priority: Minor
>         Attachments: HADOOP-14791.001.patch
>
>
> Run MiniKdc in a terminal and then press Ctrl-C:
> {noformat}
> Do <CTRL-C> or kill <PID> to stop it
> ---------------------------------------------------
> ^C2017-08-19 22:52:23,607 INFO impl.DefaultInternalKdcServerImpl: Default 
> Internal kdc server stopped.
> 2017-08-19 22:53:21,358 INFO server.SimpleKdcServer: Fail to delete krb5 
> conf. java.io.IOException
> 2017-08-19 22:53:22,363 INFO minikdc.MiniKdc: MiniKdc stopped.
> {noformat}
> The reason for "Fail to delete krb5 conf" is because MiniKdc renames 
> SimpleKdcServer's krb5 conf file. During shutdown, SimpleKdcServer attempts 
> to delete its krb5 conf file, and can not find it.



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