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https://issues.apache.org/jira/browse/HBASE-15134?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16104027#comment-16104027
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Hadoop QA commented on HBASE-15134:
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| (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 
22s{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 3 new or modified test 
files. {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  1m 
13s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  6m 
 0s{color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
53s{color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
31s{color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
44s{color} | {color:green} branch-1 passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  0m 
20s{color} | {color:red} hbase-hadoop2-compat in branch-1 has 1 extant Findbugs 
warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
50s{color} | {color:green} branch-1 passed {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
10s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 
 1s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
57s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
57s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
26s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 
32s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red}  0m  
0s{color} | {color:red} The patch has 1 line(s) that end in whitespace. Use git 
apply --whitespace=fix <<patch_file>>. Refer https://git-scm.com/docs/git-apply 
{color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 
15m 29s{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 
45s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
54s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
20s{color} | {color:green} hbase-hadoop-compat in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
24s{color} | {color:green} hbase-hadoop2-compat in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}122m 38s{color} 
| {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
47s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}159m 59s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hbase.mapred.TestTableSnapshotInputFormat |
|   | hadoop.hbase.master.balancer.TestStochasticLoadBalancer2 |
|   | hadoop.hbase.replication.TestReplicationKillSlaveRS |
|   | hadoop.hbase.client.TestClientScannerRPCTimeout |
|   | hadoop.hbase.TestZooKeeper |
| Timed out junit tests | 
org.apache.hadoop.hbase.security.visibility.TestVisibilityLabelsWithDeletes |
|   | org.apache.hadoop.hbase.security.access.TestCellACLWithMultipleVersions |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.03.0-ce Server=17.03.0-ce Image:yetus/hbase:bdc94b1 |
| JIRA Issue | HBASE-15134 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12879230/HBASE-15134.branch-1.001.patch
 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  hadoopcheck  
hbaseanti  checkstyle  compile  |
| uname | Linux 9262aa6e8e97 3.13.0-119-generic #166-Ubuntu SMP Wed May 3 
12:18:55 UTC 2017 x86_64 x86_64 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 | branch-1 / aca8a12 |
| Default Java | 1.8.0_131 |
| findbugs | v3.1.0-RC1 |
| findbugs | 
https://builds.apache.org/job/PreCommit-HBASE-Build/7817/artifact/patchprocess/branch-findbugs-hbase-hadoop2-compat-warnings.html
 |
| whitespace | 
https://builds.apache.org/job/PreCommit-HBASE-Build/7817/artifact/patchprocess/whitespace-eol.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-HBASE-Build/7817/artifact/patchprocess/patch-unit-hbase-server.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/7817/testReport/ |
| modules | C: hbase-hadoop-compat hbase-hadoop2-compat hbase-server U: . |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/7817/console |
| Powered by | Apache Yetus 0.4.0   http://yetus.apache.org |


This message was automatically generated.



> Add visibility into Flush and Compaction queues
> -----------------------------------------------
>
>                 Key: HBASE-15134
>                 URL: https://issues.apache.org/jira/browse/HBASE-15134
>             Project: HBase
>          Issue Type: New Feature
>          Components: Compaction, metrics, regionserver
>            Reporter: Elliott Clark
>            Assignee: Abhishek Singh Chouhan
>             Fix For: 2.0.0
>
>         Attachments: HBASE-15134.branch-1.001.patch, 
> HBASE-15134.master.001.patch, HBASE-15134.master.002.patch, 
> HBASE-15134.master.003.patch, HBASE-15134.patch, HBASE-15134.patch
>
>
> On busy spurts we can see regionservers start to see large queues for 
> compaction. It's really hard to tell if the server is queueing a lot of 
> compactions for the same region, lots of compactions for lots of regions, or 
> just falling behind.
> For flushes much the same. There can be flushes in queue that aren't being 
> run because of delayed flushes. There's no way to know from the metrics how 
> many flushes are for each region, how many are delayed. Etc.
> We should add either more metrics around this ( num per region, max per 
> region, min per region ) or add on a UI page that has the list of compactions 
> and flushes.
> Or both.



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