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https://issues.apache.org/jira/browse/HBASE-20049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16373877#comment-16373877
 ] 

Hadoop QA commented on HBASE-20049:
-----------------------------------

| (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 
12s{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} master Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
21s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  3m 
59s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  
5s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
 1s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  5m 
 5s{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 
32s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
12s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  3m 
52s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m  
2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green}  1m  
2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m  
2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
 2s{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} shadedjars {color} | {color:green}  4m 
 2s{color} | {color:green} patch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red}  5m 
58s{color} | {color:red} The patch causes 10 errors with Hadoop v2.6.5. {color} 
|
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red}  7m 
52s{color} | {color:red} The patch causes 10 errors with Hadoop v2.7.4. {color} 
|
| {color:red}-1{color} | {color:red} hadoopcheck {color} | {color:red}  9m 
57s{color} | {color:red} The patch causes 10 errors with Hadoop v3.0.0. {color} 
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| {color:green}+1{color} | {color:green} hbaseprotoc {color} | {color:green}  
0m 51s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
35s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
26s{color} | {color:green} hbase-protocol-shaded in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}108m 
30s{color} | {color:green} hbase-server in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
28s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}138m 27s{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:eee3b01 |
| JIRA Issue | HBASE-20049 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12911651/HBASE-20049.master.003.patch
 |
| Optional Tests |  asflicense  cc  unit  hbaseprotoc  javac  javadoc  findbugs 
 shadedjars  hadoopcheck  hbaseanti  checkstyle  compile  |
| uname | Linux 993b36b336ff 4.4.0-43-generic #63-Ubuntu SMP Wed Oct 12 
13:48:03 UTC 2016 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | 
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build@2/component/dev-support/hbase-personality.sh
 |
| git revision | master / 51f7b75f1f |
| maven | version: Apache Maven 3.5.2 
(138edd61fd100ec658bfa2d307c43b76940a5d7d; 2017-10-18T07:58:13Z) |
| Default Java | 1.8.0_151 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11630/testReport/ |
| Max. process+thread count | 5597 (vs. ulimit of 10000) |
| modules | C: hbase-protocol-shaded hbase-server U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11630/console |
| Powered by | Apache Yetus 0.7.0   http://yetus.apache.org |


This message was automatically generated.



> Region replicas of SPLIT and MERGED regions are kept in in-memory states 
> until restarting master
> ------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-20049
>                 URL: https://issues.apache.org/jira/browse/HBASE-20049
>             Project: HBase
>          Issue Type: Bug
>          Components: read replicas
>            Reporter: Toshihiro Suzuki
>            Assignee: Toshihiro Suzuki
>            Priority: Major
>         Attachments: HBASE-20049.master.001.patch, 
> HBASE-20049.master.002.patch, HBASE-20049.master.003.patch
>
>
> Currently, when regions are split or merged, region replicas of the regions 
> will become CLOSED state but will not be deleted from in-memory states (e.g. 
> AssignmentManager). These region replicas are deleted when restarting master, 
> but I think they should be deleted during splitting and merging regions. 
> One problem with this is the outdated region replicas can be online. Steps to 
> reproduce are as follows:
> 1. Create a table with enabling region replication.
> {code}
> create "test", "cf", {REGION_REPLICATION => 2}
> {code}
> 2. Load data to the table
> {code}
> (0...2000).each{|i| put "test", "row#{i}", "cf:col", "val"}
> {code}
> 3. Split the table
> {code}
> split "test"
> {code}
> 4. Disable and enable the table
> {code}
> disable "test"
> enable "test"
> {code}
> After doing those steps, the outdated region replica will be online.



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