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https://issues.apache.org/jira/browse/YARN-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15315650#comment-15315650
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Hadoop QA commented on YARN-5167:
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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 26s 
{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} test4tests {color} | {color:green} 0m 
0s {color} | {color:green} The patch appears to include 1 new or modified test 
files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m 
3s {color} | {color:green} YARN-2928 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 16s 
{color} | {color:green} YARN-2928 passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 20s 
{color} | {color:green} YARN-2928 passed with JDK v1.7.0_101 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 
15s {color} | {color:green} YARN-2928 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 24s 
{color} | {color:green} YARN-2928 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
16s {color} | {color:green} YARN-2928 passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 0m 
36s {color} | {color:green} YARN-2928 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 15s 
{color} | {color:green} YARN-2928 passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 18s 
{color} | {color:green} YARN-2928 passed with JDK v1.7.0_101 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 
20s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 13s 
{color} | {color:green} the patch passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 13s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 16s 
{color} | {color:green} the patch passed with JDK v1.7.0_101 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 16s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 
12s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 22s 
{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 
46s {color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m 12s 
{color} | {color:red} hadoop-yarn-server-timelineservice in the patch failed 
with JDK v1.8.0_91. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 16s 
{color} | {color:green} the patch passed with JDK v1.7.0_101 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 40s 
{color} | {color:green} hadoop-yarn-server-timelineservice in the patch passed 
with JDK v1.8.0_91. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 47s 
{color} | {color:green} hadoop-yarn-server-timelineservice in the patch passed 
with JDK v1.7.0_101. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 
17s {color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 15m 45s {color} 
| {color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:cf2ee45 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12808186/YARN-5167-YARN-2928.02.patch
 |
| JIRA Issue | YARN-5167 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux 6032fba6b9f9 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 | YARN-2928 / d881a16 |
| Default Java | 1.7.0_101 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_91 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_101 |
| findbugs | v3.0.0 |
| javadoc | 
https://builds.apache.org/job/PreCommit-YARN-Build/11842/artifact/patchprocess/patch-javadoc-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-timelineservice-jdk1.8.0_91.txt
 |
| JDK v1.7.0_101  Test Results | 
https://builds.apache.org/job/PreCommit-YARN-Build/11842/testReport/ |
| modules | C: 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice
 U: 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice
 |
| Console output | 
https://builds.apache.org/job/PreCommit-YARN-Build/11842/console |
| Powered by | Apache Yetus 0.3.0   http://yetus.apache.org |


This message was automatically generated.



> Escaping occurences of encodedValues
> ------------------------------------
>
>                 Key: YARN-5167
>                 URL: https://issues.apache.org/jira/browse/YARN-5167
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Joep Rottinghuis
>            Assignee: Sangjin Lee
>            Priority: Critical
>              Labels: yarn-2928-1st-milestone
>         Attachments: YARN-5167-YARN-2928.01.patch, 
> YARN-5167-YARN-2928.02.patch
>
>
> We had earlier decided to punt on this, but in discussing YARN-5109 we 
> thought it would be best to just be safe rather than sorry later on.
> Encoded sequences can occur in the original string, especially in case of 
> "foreign key" if we decide to have lookups.
> For example, space is encoded as %2$.
> Encoding "String with %2$ in it" would decode to "String with   in it".
> We though we should first escape existing occurrences of encoded strings by 
> prefixing a backslash (even if there is already a backslash that should be 
> ok). Then we should replace all unencoded strings.
> On the way out, we should replace all occurrences of our encoded string to 
> the original except when it is prefixed by an escape character. Lastly we 
> should strip off the one additional backslash in front of each remaining 
> (escaped) sequence.
> If we add the following entry to TestSeparator#testEncodeDecode() that 
> demonstrates what this jira should accomplish:
> {code}
>     testEncodeDecode("Double-escape %2$ and %3$ or \\%2$ or \\%3$, nor  
> \\\\%2$ = no problem!", Separator.QUALIFIERS,
>         Separator.VALUES, Separator.SPACE, Separator.TAB);
> {code}



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