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https://issues.apache.org/jira/browse/HADOOP-12901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15183778#comment-15183778
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Hadoop QA commented on HADOOP-12901:
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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 11s 
{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} 6m 
36s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 5m 55s 
{color} | {color:green} trunk passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m 54s 
{color} | {color:green} trunk passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 
20s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 57s 
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
13s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 
38s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 51s 
{color} | {color:green} trunk passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 3s 
{color} | {color:green} trunk passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 
39s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m 29s 
{color} | {color:green} the patch passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 6m 29s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 7m 11s 
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 7m 11s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 
21s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 56s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
13s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 
0s {color} | {color:green} Patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 
55s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 1s 
{color} | {color:green} the patch passed with JDK v1.8.0_74 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 1s 
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 6m 42s 
{color} | {color:green} hadoop-common in the patch passed with JDK v1.8.0_74. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 7m 8s 
{color} | {color:green} hadoop-common in the patch passed with JDK v1.7.0_95. 
{color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 
22s {color} | {color:green} Patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 59m 45s {color} 
| {color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:0ca8df7 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12791815/HADOOP-12901.01.patch 
|
| JIRA Issue | HADOOP-12901 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux db885f2b7b9f 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 / 724d229 |
| Default Java | 1.7.0_95 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_74 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_95 |
| findbugs | v3.0.0 |
| JDK v1.7.0_95  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/8809/testReport/ |
| modules | C: hadoop-common-project/hadoop-common U: 
hadoop-common-project/hadoop-common |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/8809/console |
| Powered by | Apache Yetus 0.3.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Add warning log when KMSClientProvider cannot create a connection to the KMS 
> server
> -----------------------------------------------------------------------------------
>
>                 Key: HADOOP-12901
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12901
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Xiao Chen
>            Assignee: Xiao Chen
>            Priority: Minor
>         Attachments: HADOOP-12901.01.patch
>
>
> Currently when failed to connect, one can only see logs at debug level with a 
> vague {{SocketTimeoutException}}. (Luckily in the env I saw this, 
> HADOOP-10015 was not present, so the last WARN log was printed.)
> {noformat}
> 2015-12-17 12:28:01,410 DEBUG 
> org.apache.hadoop.security.UserGroupInformation: PrivilegedAction as:hdfs 
> (auth:SIMPLE) 
> from:org.apache.hadoop.crypto.key.kms.KMSClientProvider.createConnection(KMSClientProvider.java:477)
>  
> 2015-12-17 12:28:01,469 WARN org.apache.hadoop.security.UserGroupInformation: 
> PriviledgedActionException as:hdfs (auth:SIMPLE) 
> cause:java.net.SocketTimeoutException: connect timed out 
> {noformat}
> The issue was then fixed by opening up the KMS server port.
> This jira is to propose we add specific loggings in this case, to help user 
> easily identify the problem.



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