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https://issues.apache.org/jira/browse/HBASE-20571?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16477380#comment-16477380
 ] 

Hadoop QA commented on HBASE-20571:
-----------------------------------

| (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 
34s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m  
0s{color} | {color:blue} Findbugs executables are not available. {color} |
| {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green}  0m  
0s{color} | {color:green} Patch does not have any anti-patterns. {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} branch-1 Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  7m 
48s{color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 
31s{color} | {color:green} branch-1 passed with JDK v1.8.0_172 {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red}  0m 
16s{color} | {color:red} hbase-server in branch-1 failed with JDK v1.7.0_181. 
{color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
12s{color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  2m 
17s{color} | {color:green} branch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
29s{color} | {color:green} branch-1 passed with JDK v1.8.0_172 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
30s{color} | {color:green} branch-1 passed with JDK v1.7.0_181 {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red}  0m 
48s{color} | {color:red} root in the patch failed. {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 
18s{color} | {color:green} the patch passed with JDK v1.8.0_172 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m 
18s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red}  0m 
13s{color} | {color:red} hbase-server in the patch failed with JDK v1.7.0_181. 
{color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red}  0m 13s{color} 
| {color:red} hbase-server in the patch failed with JDK v1.7.0_181. {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
 5s{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:red}-1{color} | {color:red} shadedjars {color} | {color:red}  1m 
19s{color} | {color:red} patch has 16 errors when building our shaded 
downstream artifacts. {color} |
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red}  1m 
17s{color} | {color:red} The patch causes 48 errors with Hadoop v2.4.1. {color} 
|
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red}  2m 
35s{color} | {color:red} The patch causes 48 errors with Hadoop v2.5.2. {color} 
|
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red}  3m 
58s{color} | {color:red} The patch causes 16 errors with Hadoop v2.6.5. {color} 
|
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red}  4m 
44s{color} | {color:red} The patch causes 16 errors with Hadoop v2.7.4. {color} 
|
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
23s{color} | {color:green} the patch passed with JDK v1.8.0_172 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
30s{color} | {color:green} the patch passed with JDK v1.7.0_181 {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}  0m 24s{color} 
| {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
11s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 26m  1s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:36a7029 |
| JIRA Issue | HBASE-20571 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12923670/HBASE-20571.branch-1.003.patch
 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  shadedjars  
hadoopcheck  hbaseanti  checkstyle  compile  |
| uname | Linux 6285ab471361 4.4.0-89-generic #112-Ubuntu SMP Mon Jul 31 
19:38:41 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh
 |
| git revision | branch-1 / 2a309d7 |
| maven | version: Apache Maven 3.0.5 |
| Default Java | 1.7.0_181 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-openjdk-amd64:1.8.0_172 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_181 |
| compile | 
https://builds.apache.org/job/PreCommit-HBASE-Build/12842/artifact/patchprocess/branch-compile-hbase-server-jdk1.7.0_181.txt
 |
| mvninstall | 
https://builds.apache.org/job/PreCommit-HBASE-Build/12842/artifact/patchprocess/patch-mvninstall-root.txt
 |
| compile | 
https://builds.apache.org/job/PreCommit-HBASE-Build/12842/artifact/patchprocess/patch-compile-hbase-server-jdk1.7.0_181.txt
 |
| javac | 
https://builds.apache.org/job/PreCommit-HBASE-Build/12842/artifact/patchprocess/patch-compile-hbase-server-jdk1.7.0_181.txt
 |
| shadedjars | 
https://builds.apache.org/job/PreCommit-HBASE-Build/12842/artifact/patchprocess/patch-shadedjars.txt
 |
| hadoopcheck | 
https://builds.apache.org/job/PreCommit-HBASE-Build/12842/artifact/patchprocess/patch-javac-2.4.1.txt
 |
| hadoopcheck | 
https://builds.apache.org/job/PreCommit-HBASE-Build/12842/artifact/patchprocess/patch-javac-2.5.2.txt
 |
| hadoopcheck | 
https://builds.apache.org/job/PreCommit-HBASE-Build/12842/artifact/patchprocess/patch-javac-2.6.5.txt
 |
| hadoopcheck | 
https://builds.apache.org/job/PreCommit-HBASE-Build/12842/artifact/patchprocess/patch-javac-2.7.4.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HBASE-Build/12842/artifact/patchprocess/patch-unit-hbase-server.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/12842/testReport/ |
| Max. process+thread count | 88 (vs. ulimit of 10000) |
| modules | C: hbase-server U: hbase-server |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/12842/console |
| Powered by | Apache Yetus 0.7.0   http://yetus.apache.org |


This message was automatically generated.



> JMXJsonServlet generates invalid JSON if it has NaN in metrics
> --------------------------------------------------------------
>
>                 Key: HBASE-20571
>                 URL: https://issues.apache.org/jira/browse/HBASE-20571
>             Project: HBase
>          Issue Type: Bug
>          Components: UI
>            Reporter: Balazs Meszaros
>            Assignee: Balazs Meszaros
>            Priority: Major
>             Fix For: 3.0.0, 2.0.1, 1.4.5
>
>         Attachments: HBASE-20571.branch-1.003.patch, 
> HBASE-20571.branch-2.0.001.patch, HBASE-20571.branch-2.0.002.patch, 
> HBASE-20571.branch-2.0.002.patch, HBASE-20571.branch-2.0.003.patch
>
>
> {{/jmx}} servlet responses invalid JSON, if some metrics are NaN:
> {code}
>     "l1CacheHitCount" : 0,
>     "l1CacheMissCount" : 0,
>     "l1CacheHitRatio" : NaN,
>     "l1CacheMissRatio" : NaN,
>     "l2CacheHitCount" : 0,
>     "l2CacheMissCount" : 0,
>     "l2CacheHitRatio" : 0.0,
>     "l2CacheMissRatio" : 0.0,
> {code}
> NaN is an invalid character sequence in JSON. We should not response NaN in 
> metrics.



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