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https://issues.apache.org/jira/browse/HBASE-19021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16207074#comment-16207074
 ] 

Hadoop QA commented on HBASE-19021:
-----------------------------------

| (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 
11s{color} | {color:blue} Docker mode activated. {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:green}+1{color} | {color:green} mvninstall {color} | {color:green}  4m 
 8s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
38s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
46s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
17s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  5m 
11s{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 
34s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
29s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
43s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
39s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
39s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
44s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
16s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red}  0m  
0s{color} | {color:red} The patch 2 line(s) with tabs. {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  3m 
56s{color} | {color:green} patch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 
37m 13s{color} | {color:green} Patch does not cause any errors with Hadoop 
2.6.1 2.6.2 2.6.3 2.6.4 2.6.5 2.7.1 2.7.2 2.7.3 or 3.0.0-alpha4. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m 
15s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
28s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 93m  6s{color} 
| {color:red} hbase-server in the patch failed. {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}149m 14s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| Timed out junit tests | 
org.apache.hadoop.hbase.coprocessor.TestMasterObserver |
|   | org.apache.hadoop.hbase.coprocessor.TestWALObserver |
|   | org.apache.hadoop.hbase.TestClusterBootOrder |
|   | 
org.apache.hadoop.hbase.coprocessor.TestRegionObserverForAddingMutationsFromCoprocessors
 |
|   | org.apache.hadoop.hbase.TestGlobalMemStoreSize |
|   | org.apache.hadoop.hbase.TestIOFencing |
|   | 
org.apache.hadoop.hbase.coprocessor.TestRegionServerCoprocessorExceptionWithRemove
 |
|   | org.apache.hadoop.hbase.coprocessor.TestRegionObserverBypass |
|   | org.apache.hadoop.hbase.TestServerSideScanMetricsFromClientSide |
|   | 
org.apache.hadoop.hbase.coprocessor.TestRegionServerCoprocessorExceptionWithAbort
 |
|   | org.apache.hadoop.hbase.TestPartialResultsFromClientSide |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:5d60123 |
| JIRA Issue | HBASE-19021 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12892523/HBASE-19021-master.patch
 |
| Optional Tests |  asflicense  shadedjars  javac  javadoc  unit  findbugs  
hadoopcheck  hbaseanti  checkstyle  compile  |
| uname | Linux 7903261726ea 3.13.0-129-generic #178-Ubuntu SMP Fri Aug 11 
12:48:20 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 | master / be4570f |
| Default Java | 1.8.0_144 |
| findbugs | v3.1.0-RC3 |
| whitespace | 
https://builds.apache.org/job/PreCommit-HBASE-Build/9148/artifact/patchprocess/whitespace-tabs.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HBASE-Build/9148/artifact/patchprocess/patch-unit-hbase-server.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/9148/testReport/ |
| modules | C: hbase-server U: hbase-server |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/9148/console |
| Powered by | Apache Yetus 0.4.0   http://yetus.apache.org |


This message was automatically generated.



> Restore a few important missing logics for balancer in 2.0
> ----------------------------------------------------------
>
>                 Key: HBASE-19021
>                 URL: https://issues.apache.org/jira/browse/HBASE-19021
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Jerry He
>            Assignee: Jerry He
>            Priority: Critical
>         Attachments: HBASE-19021-master.patch
>
>
> After looking at the code, and some testing, I see the following things are 
> missing for balancer to work properly after AMv2.
> # hbase.master.loadbalance.bytable is not respected. It is always 'bytable'. 
> Previous default is cluster wide, not by table.
> # Servers with no assignments is not added for balance consideration.
> # Crashed server is not removed from the in-memory server map in 
> RegionStates, which affects balance.
> # Draining marker is not respected when balance.
> Also try to re-enable {{TestRegionRebalancing}}, which has a 
> {{testRebalanceOnRegionServerNumberChange}}



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