[ 
https://issues.apache.org/jira/browse/YARN-10328?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17146625#comment-17146625
 ] 

Hadoop QA commented on YARN-10328:
----------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  2m 
17s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} dupname {color} | {color:green}  0m  
0s{color} | {color:green} No case conflicting files found. {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} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 25m 
27s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
29s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
20s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
32s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
16m 12s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
18s{color} | {color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  0m 
57s{color} | {color:blue} Used deprecated FindBugs config; considering 
switching to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
54s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
29s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
23s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
23s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
15s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
25s{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} shadedclient {color} | {color:green} 
15m 36s{color} | {color:green} patch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
17s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m  
6s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 19m 
57s{color} | {color:green} hadoop-yarn-services-core in the patch passed. 
{color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
38s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 86m  0s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | ClientAPI=1.40 ServerAPI=1.40 base: 
https://builds.apache.org/job/PreCommit-YARN-Build/26226/artifact/out/Dockerfile
 |
| JIRA Issue | YARN-10328 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/13006539/YARN-10328.001.patch |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite 
unit shadedclient findbugs checkstyle |
| uname | Linux 65cdf16dca88 4.15.0-91-generic #92-Ubuntu SMP Fri Feb 28 
11:09:48 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git revision | trunk / 2c03524fa4b |
| Default Java | Private Build-1.8.0_252-8u252-b09-1~18.04-b09 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-YARN-Build/26226/testReport/ |
| Max. process+thread count | 779 (vs. ulimit of 5500) |
| modules | C: 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core
 U: 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core
 |
| Console output | 
https://builds.apache.org/job/PreCommit-YARN-Build/26226/console |
| versions | git=2.17.1 maven=3.6.0 findbugs=3.1.0-RC1 |
| Powered by | Apache Yetus 0.12.0 https://yetus.apache.org |


This message was automatically generated.



> Too many ZK Curator NodeExists exception logs in YARN Service AM logs
> ---------------------------------------------------------------------
>
>                 Key: YARN-10328
>                 URL: https://issues.apache.org/jira/browse/YARN-10328
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Bilwa S T
>            Assignee: Bilwa S T
>            Priority: Major
>         Attachments: YARN-10328.001.patch
>
>
> Following debug logs are printed everytime when component is started.
> {code:java}
> [pool-6-thread-3] DEBUG zk.CuratorService - path already present: 
> /registry/users/server/services/yarn-service/default-worker/components
> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = 
> NodeExists for 
> /registry/users/hetuserver/services/yarn-service/default-worker/components
>       at org.apache.zookeeper.KeeperException.create(KeeperException.java:128)
>       at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
>       at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:1480)
>       at 
> org.apache.curator.framework.imps.CreateBuilderImpl$11.call(CreateBuilderImpl.java:740)
>       at 
> org.apache.curator.framework.imps.CreateBuilderImpl$11.call(CreateBuilderImpl.java:723)
>       at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:109)
>       at 
> org.apache.curator.framework.imps.CreateBuilderImpl.pathInForeground(CreateBuilderImpl.java:720)
>       at 
> org.apache.curator.framework.imps.CreateBuilderImpl.protectedPathInForeground(CreateBuilderImpl.java:484)
>       at 
> org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:474)
>       at 
> org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:454)
>       at 
> org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:44)
>       at 
> org.apache.hadoop.registry.client.impl.zk.CuratorService.zkMkPath(CuratorService.java:587)
>       at 
> org.apache.hadoop.registry.client.impl.zk.RegistryOperationsService.mknode(RegistryOperationsService.java:99)
>       at 
> org.apache.hadoop.yarn.service.registry.YarnRegistryViewForProviders.putComponent(YarnRegistryViewForProviders.java:146)
>       at 
> org.apache.hadoop.yarn.service.registry.YarnRegistryViewForProviders.putComponent(YarnRegistryViewForProviders.java:128)
>       at 
> org.apache.hadoop.yarn.service.component.instance.ComponentInstance.updateServiceRecord(ComponentInstance.java:511)
>       at 
> org.apache.hadoop.yarn.service.component.instance.ComponentInstance.updateContainerStatus(ComponentInstance.java:449)
>       at 
> org.apache.hadoop.yarn.service.component.instance.ComponentInstance$ContainerStatusRetriever.run(ComponentInstance.java:620)
>       at 
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>       at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
>       at 
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
>       at 
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
>       at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
>       at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
>       at java.lang.Thread.run(Thread.java:748)
> {code}



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