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https://issues.apache.org/jira/browse/HADOOP-13777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15624429#comment-15624429
 ] 

Hadoop QA commented on HADOOP-13777:
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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 
21s{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 
39s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
17s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
13s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
23s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
16s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
30s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
14s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
16s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
15s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
15s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
10s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
20s{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} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
34s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
11s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
17s{color} | {color:green} hadoop-rumen in the patch passed. {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} 12m 40s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:9560f25 |
| JIRA Issue | HADOOP-13777 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12836282/HADOOP-13777.0000.patch
 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux 80f14278df91 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 / 7ba74be |
| Default Java | 1.8.0_101 |
| findbugs | v3.0.0 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/10941/testReport/ |
| modules | C: hadoop-tools/hadoop-rumen U: hadoop-tools/hadoop-rumen |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/10941/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Trim configuration values in `rumen`
> ------------------------------------
>
>                 Key: HADOOP-13777
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13777
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: tools
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Tianyin Xu
>            Priority: Minor
>         Attachments: HADOOP-13777.0000.patch
>
>
> The current implementation of {{ClassName.java}} in {{rumen}} does not follow 
> the practice of trimming configuration values. This leads to silent and 
> hard-to-diagnosis errors if users set values containing space or 
> newline---basically classes supposed to need anonymization will not do.
> See the previous commits as reference (just list a few):
> HADOOP-6578. Configuration should trim whitespace around a lot of value types
> HADOOP-6534. Trim whitespace from directory lists initializing
> Patch is available against trunk
> HDFS-9708. FSNamesystem.initAuditLoggers() doesn't trim classnames
> HDFS-2799. Trim fs.checkpoint.dir values.
> YARN-3395. FairScheduler: Trim whitespaces when using username for queuename.
> YARN-2869. CapacityScheduler should trim sub queue names when parse 
> configuration.
> Patch is available against trunk (tested):
> {code:title=ClassName.java|borderStyle=solid}
> @@ -43,15 +43,13 @@ protected String getPrefix() {
>    @Override
>    protected boolean needsAnonymization(Configuration conf) {
> -    String[] preserves = conf.getStrings(CLASSNAME_PRESERVE_CONFIG);
> -    if (preserves != null) {
> -      // do a simple starts with check
> -      for (String p : preserves) {
> -        if (className.startsWith(p)) {
> -          return false;
> -        }
> +    String[] preserves = conf.getTrimmedStrings(CLASSNAME_PRESERVE_CONFIG);
> +    // do a simple starts with check
> +    for (String p : preserves) {
> +      if (className.startsWith(p)) {
> +        return false;
>        }
>      }
>      return true;
>    }
> {code}
> (the NULL check is no longer needed because {{getTrimmedStrings}} returns an 
> empty array if nothing is set)



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