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https://issues.apache.org/jira/browse/HBASE-23349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16986363#comment-16986363
 ] 

HBase QA commented on HBASE-23349:
----------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  1m 
21s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green}  0m  
1s{color} | {color:green} No case conflicting files found. {color} |
| {color:blue}0{color} | {color:blue} prototool {color} | {color:blue}  0m  
0s{color} | {color:blue} prototool was 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:green}+1{color} | {color:green} test4tests {color} | {color:green}  0m 
 0s{color} | {color:green} The patch appears to include 3 new or modified test 
files. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
26s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  5m 
32s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  2m 
46s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  2m 
44s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  4m 
59s{color} | {color:green} branch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
37s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  4m 
29s{color} | {color:blue} Used deprecated FindBugs config; considering 
switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 10m 
17s{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}  5m 
32s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  2m 
47s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green}  2m 
47s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  2m 
47s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  2m 
44s{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}  5m 
 2s{color} | {color:green} patch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 
17m 13s{color} | {color:green} Patch does not cause any errors with Hadoop 
2.8.5 2.9.2 or 3.1.2. {color} |
| {color:green}+1{color} | {color:green} hbaseprotoc {color} | {color:green}  
2m 46s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 
39s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 11m  
8s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
41s{color} | {color:green} hbase-protocol-shaded in the patch passed. {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 
35s{color} | {color:green} hbase-hadoop2-compat in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
24s{color} | {color:green} hbase-protocol in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  1m 
43s{color} | {color:green} hbase-client in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}252m 20s{color} 
| {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  2m 
 9s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}344m 18s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | 
hadoop.hbase.master.assignment.TestMergeTableRegionsProcedure |
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|| Subsystem || Report/Notes ||
| Docker | Client=19.03.5 Server=19.03.5 base: 
https://builds.apache.org/job/PreCommit-HBASE-Build/1056/artifact/patchprocess/Dockerfile
 |
| JIRA Issue | HBASE-23349 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12987305/HBASE-23349.master.001.patch
 |
| Optional Tests | dupname asflicense javac javadoc unit spotbugs findbugs 
shadedjars hadoopcheck hbaseanti checkstyle compile cc hbaseprotoc prototool |
| uname | Linux e5f7f2331148 4.15.0-66-generic #75-Ubuntu SMP Tue Oct 1 
05:24:09 UTC 2019 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/hbase-personality.sh |
| git revision | master / 97e0107000 |
| Default Java | 1.8.0_181 |
| unit | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1056/artifact/patchprocess/patch-unit-hbase-server.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1056/testReport/ |
| Max. process+thread count | 5284 (vs. ulimit of 10000) |
| modules | C: hbase-protocol-shaded hbase-hadoop-compat hbase-hadoop2-compat 
hbase-protocol hbase-client hbase-server U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/1056/console |
| versions | git=2.11.0 maven=2018-06-17T18:33:14Z) findbugs=3.1.11 |
| Powered by | Apache Yetus 0.11.1 https://yetus.apache.org |


This message was automatically generated.



> Expose max refCount among all compacted store files of a region
> ---------------------------------------------------------------
>
>                 Key: HBASE-23349
>                 URL: https://issues.apache.org/jira/browse/HBASE-23349
>             Project: HBase
>          Issue Type: Task
>    Affects Versions: 3.0.0, 2.3.0, 1.6.0
>            Reporter: Viraj Jasani
>            Assignee: Viraj Jasani
>            Priority: Major
>             Fix For: 3.0.0, 2.3.0, 1.6.0
>
>         Attachments: HBASE-23349.master.000.patch, 
> HBASE-23349.master.001.patch, HBASE-23349.master.002.patch
>
>
> We should expose a region level metric that represents max refCount among 
> refCounts of all compacted store files under the region. For successful 
> archival of compacted store files, it is important for this metric count to 
> be 0 eventually if not immediately. If it is >0 for a considerably high 
> amount of time, it indicates some issue i.e. reader refCount leak on some 
> compacted store files and in such case, archival would not be successful.



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