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https://issues.apache.org/jira/browse/HBASE-20943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16573853#comment-16573853
 ] 

Hadoop QA commented on HBASE-20943:
-----------------------------------

| (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 
10s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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: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:brown} master Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
11s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  4m 
41s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  2m 
15s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
33s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  4m 
31s{color} | {color:green} branch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m 
38s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
53s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
14s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  4m 
46s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  2m 
13s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  2m 
13s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
10s{color} | {color:red} hbase-hadoop-compat: The patch generated 1 new + 0 
unchanged - 0 fixed = 1 total (was 0) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  1m 
11s{color} | {color:red} hbase-server: The patch generated 3 new + 4 unchanged 
- 0 fixed = 7 total (was 4) {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} shadedjars {color} | {color:green}  4m 
28s{color} | {color:green} patch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 
10m 23s{color} | {color:green} Patch does not cause any errors with Hadoop 
2.7.4 or 3.0.0. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  3m 
11s{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 {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
28s{color} | {color:green} hbase-hadoop-compat in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
34s{color} | {color:green} hbase-hadoop2-compat in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}118m 40s{color} 
| {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
58s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}166m 14s{color} | 
{color:black} {color} |
\\
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|| Reason || Tests ||
| Failed junit tests | 
hadoop.hbase.replication.TestSyncReplicationStandbyKillRS |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:b002b0b |
| JIRA Issue | HBASE-20943 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12934849/HBASE-20943-master-v1.patch
 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  shadedjars  
hadoopcheck  hbaseanti  checkstyle  compile  |
| uname | Linux 30b50b4b5862 3.13.0-139-generic #188-Ubuntu SMP Tue Jan 9 
14:43:09 UTC 2018 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh
 |
| git revision | master / d921262d38 |
| maven | version: Apache Maven 3.5.4 
(1edded0938998edf8bf061f1ceb3cfdeccf443fe; 2018-06-17T18:33:14Z) |
| Default Java | 1.8.0_171 |
| findbugs | v3.1.0-RC3 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HBASE-Build/13983/artifact/patchprocess/diff-checkstyle-hbase-hadoop-compat.txt
 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HBASE-Build/13983/artifact/patchprocess/diff-checkstyle-hbase-server.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HBASE-Build/13983/artifact/patchprocess/patch-unit-hbase-server.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/13983/testReport/ |
| Max. process+thread count | 4678 (vs. ulimit of 10000) |
| modules | C: hbase-hadoop-compat hbase-hadoop2-compat hbase-server U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/13983/console |
| Powered by | Apache Yetus 0.7.0   http://yetus.apache.org |


This message was automatically generated.



> Add offline/online region count into metrics
> --------------------------------------------
>
>                 Key: HBASE-20943
>                 URL: https://issues.apache.org/jira/browse/HBASE-20943
>             Project: HBase
>          Issue Type: Improvement
>          Components: metrics
>    Affects Versions: 2.0.0, 1.2.6.1
>            Reporter: Tianying Chang
>            Assignee: jinghan xu
>            Priority: Minor
>         Attachments: HBASE-20943-master-v1.patch, HBASE-20943.patch, Screen 
> Shot 2018-07-25 at 2.51.19 PM.png
>
>
> We intensively use metrics to monitor the health of our HBase production 
> cluster. We have seen some regions of a table stuck and cannot be brought 
> online due to AWS issue which cause some log file corrupted. It will be good 
> if we can catch this early. Although WebUI has this information, it is not 
> useful for automated monitoring. By adding this metric, we can easily monitor 
> them with our monitoring system. 



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