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https://issues.apache.org/jira/browse/YARN-10240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17087844#comment-17087844
 ] 

Hadoop QA commented on YARN-10240:
----------------------------------

| (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 
41s{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} 24m 
26s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
44s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
31s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
49s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
17m 32s{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 
50s{color} | {color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue}  2m  
2s{color} | {color:blue} Used deprecated FindBugs config; considering switching 
to SpotBugs. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m  
0s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
45s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
40s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
40s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 26s{color} | {color:orange} 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common: The patch generated 1 new + 
0 unchanged - 0 fixed = 1 total (was 0) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
43s{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 42s{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 
49s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m  
4s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  4m 
12s{color} | {color:green} hadoop-yarn-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
31s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 74m 32s{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/25911/artifact/out/Dockerfile
 |
| JIRA Issue | YARN-10240 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/13000565/YARN-10240.001.patch |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite 
unit shadedclient findbugs checkstyle |
| uname | Linux 1c84294b3bc7 4.15.0-74-generic #84-Ubuntu SMP Thu Dec 19 
08:06:28 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | personality/hadoop.sh |
| git revision | trunk / 1fdfaeb |
| Default Java | Private Build-1.8.0_242-8u242-b08-0ubuntu3~16.04-b08 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-YARN-Build/25911/artifact/out/diff-checkstyle-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-common.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-YARN-Build/25911/testReport/ |
| Max. process+thread count | 335 (vs. ulimit of 5500) |
| modules | C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common U: 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common |
| Console output | 
https://builds.apache.org/job/PreCommit-YARN-Build/25911/console |
| versions | git=2.7.4 maven=3.3.9 findbugs=3.1.0-RC1 |
| Powered by | Apache Yetus 0.12.0 https://yetus.apache.org |


This message was automatically generated.



> Prevent Fatal CancelledException in TimelineV2Client when stopping
> ------------------------------------------------------------------
>
>                 Key: YARN-10240
>                 URL: https://issues.apache.org/jira/browse/YARN-10240
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: ATSv2
>            Reporter: Tarun Parimi
>            Assignee: Tarun Parimi
>            Priority: Major
>         Attachments: YARN-10240.001.patch
>
>
> When the timeline client is stopped, it will cancel all sync EntityHolders 
> after waiting for a drain timeout.
> {code:java}
> // if some entities were not drained then we need interrupt
>                   // the threads which had put sync EntityHolders to the 
> queue.
>                   EntitiesHolder nextEntityInTheQueue = null;
>                   while ((nextEntityInTheQueue =
>                       timelineEntityQueue.poll()) != null) {
>                     nextEntityInTheQueue.cancel(true);
>                   }
> {code}
> We only handle interrupted exception here.
> {code:java}
> if (sync) {
>         // In sync call we need to wait till its published and if any error 
> then
>         // throw it back
>         try {
>           entitiesHolder.get();
>         } catch (ExecutionException e) {
>           throw new YarnException("Failed while publishing entity",
>               e.getCause());
>         } catch (InterruptedException e) {
>           Thread.currentThread().interrupt();
>           throw new YarnException("Interrupted while publishing entity", e);
>         }
>       }
> {code}
>  But calling nextEntityInTheQueue.cancel(true) will result in 
> entitiesHolder.get() throwing a CancelledException which is not handled. This 
> can result in FATAL error in NM. We need to prevent this.
> {code:java}
> FATAL event.AsyncDispatcher (AsyncDispatcher.java:dispatch(203)) - Error in 
> dispatcher thread
> java.util.concurrent.CancellationException
>       at java.util.concurrent.FutureTask.report(FutureTask.java:121)
>       at java.util.concurrent.FutureTask.get(FutureTask.java:192)
>       at 
> org.apache.hadoop.yarn.client.api.impl.TimelineV2ClientImpl$TimelineEntityDispatcher.dispatchEntities(TimelineV2ClientImpl.java:545)
>       at 
> org.apache.hadoop.yarn.client.api.impl.TimelineV2ClientImpl.putEntities(TimelineV2ClientImpl.java:149)
>       at 
> org.apache.hadoop.yarn.server.nodemanager.timelineservice.NMTimelinePublisher.putEntity(NMTimelinePublisher.java:348)
> {code}



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