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https://issues.apache.org/jira/browse/YARN-7401?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16240978#comment-16240978
 ] 

Hadoop QA commented on YARN-7401:
---------------------------------

| (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 
51s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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} 16m 
33s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
40s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
27s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
42s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
10m 49s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m  
4s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
24s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
39s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
34s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
34s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
22s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
36s{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} 
10m 58s{color} | {color:green} patch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  1m  
8s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
22s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 80m  3s{color} 
| {color:red} hadoop-yarn-server-resourcemanager in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
21s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}126m 19s{color} | 
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | 
hadoop.yarn.server.resourcemanager.scheduler.capacity.TestCapacitySchedulerDynamicBehavior
 |
|   | 
hadoop.yarn.server.resourcemanager.webapp.TestRMWebServicesAppsModification |
|   | hadoop.yarn.server.resourcemanager.scheduler.fair.TestAppRunnability |
|   | hadoop.yarn.server.resourcemanager.scheduler.fifo.TestFifoScheduler |
|   | hadoop.yarn.server.resourcemanager.TestSubmitApplicationWithRMHA |
|   | 
hadoop.yarn.server.resourcemanager.scheduler.capacity.TestApplicationPriority |
|   | 
hadoop.yarn.server.resourcemanager.scheduler.capacity.TestApplicationPriorityACLs
 |
|   | hadoop.yarn.server.resourcemanager.webapp.TestRMWebappAuthentication |
|   | hadoop.yarn.server.resourcemanager.TestReservationSystemWithRMHA |
|   | hadoop.yarn.server.resourcemanager.TestRMHAForNodeLabels |
|   | 
hadoop.yarn.server.resourcemanager.scheduler.capacity.TestCapacitySchedulerQueueACLs
 |
|   | hadoop.yarn.server.resourcemanager.TestApplicationACLs |
|   | hadoop.yarn.server.resourcemanager.webapp.TestRMWebServices |
|   | hadoop.yarn.server.resourcemanager.webapp.TestRMWebServicesFairScheduler |
|   | hadoop.yarn.server.resourcemanager.TestResourceTrackerService |
|   | hadoop.yarn.server.resourcemanager.scheduler.fair.TestFairScheduler |
|   | hadoop.yarn.server.resourcemanager.scheduler.TestAbstractYarnScheduler |
|   | hadoop.yarn.server.resourcemanager.TestRMStoreCommands |
|   | 
hadoop.yarn.server.resourcemanager.scheduler.TestSchedulingWithAllocationRequestId
 |
|   | 
hadoop.yarn.server.resourcemanager.scheduler.capacity.conf.TestLeveldbConfigurationStore
 |
|   | 
hadoop.yarn.server.resourcemanager.scheduler.capacity.conf.TestZKConfigurationStore
 |
|   | 
hadoop.yarn.server.resourcemanager.webapp.TestRMWebServicesDelegationTokenAuthentication
 |
|   | hadoop.yarn.server.resourcemanager.scheduler.capacity.TestLeafQueue |
|   | 
hadoop.yarn.server.resourcemanager.webapp.TestRMWebServicesSchedulerActivities |
|   | hadoop.yarn.server.resourcemanager.TestRMHATimelineCollectors |
|   | 
hadoop.yarn.server.resourcemanager.scheduler.fair.TestFairSchedulerQueueACLs |
|   | hadoop.yarn.server.resourcemanager.TestContainerResourceUsage |
|   | hadoop.yarn.server.resourcemanager.webapp.TestRMWebServicesCapacitySched |
|   | 
hadoop.yarn.server.resourcemanager.scheduler.capacity.TestCapacityScheduler |
|   | hadoop.yarn.server.resourcemanager.TestRMRestart |
|   | hadoop.yarn.server.resourcemanager.security.TestClientToAMTokens |
|   | hadoop.yarn.server.resourcemanager.TestWorkPreservingRMRestart |
|   | hadoop.yarn.server.resourcemanager.TestRMHA |
|   | hadoop.yarn.server.resourcemanager.TestLeaderElectorService |
|   | hadoop.yarn.server.resourcemanager.webapp.TestRMWebAppFairScheduler |
|   | hadoop.yarn.server.resourcemanager.TestClientRMService |
|   | hadoop.yarn.server.resourcemanager.scheduler.capacity.TestQueueParsing |
|   | hadoop.yarn.server.resourcemanager.scheduler.capacity.TestReservations |
|   | 
hadoop.yarn.server.resourcemanager.webapp.TestRMWebServicesConfigurationMutation
 |
|   | hadoop.yarn.server.resourcemanager.rmapp.TestApplicationLifetimeMonitor |
|   | hadoop.yarn.server.resourcemanager.security.TestDelegationTokenRenewer |
|   | hadoop.yarn.server.resourcemanager.applicationsmanager.TestAMRestart |
|   | 
hadoop.yarn.server.resourcemanager.scheduler.fair.TestContinuousScheduling |
|   | hadoop.yarn.server.resourcemanager.TestRMAdminService |
|   | hadoop.yarn.server.resourcemanager.TestKillApplicationWithRMHA |
|   | hadoop.yarn.server.resourcemanager.scheduler.capacity.TestQueueState |
|   | 
hadoop.yarn.server.resourcemanager.scheduler.capacity.TestQueueStateManager |
|   | hadoop.yarn.server.resourcemanager.TestApplicationCleanup |
|   | hadoop.yarn.server.resourcemanager.webapp.TestRMWebServicesReservation |
|   | hadoop.yarn.server.resourcemanager.TestMoveApplication |
|   | hadoop.yarn.server.resourcemanager.scheduler.capacity.TestQueueMappings |
|   | 
hadoop.yarn.server.resourcemanager.scheduler.capacity.TestWorkPreservingRMRestartForNodeLabel
 |
|   | hadoop.yarn.server.resourcemanager.TestRM |
|   | hadoop.yarn.server.resourcemanager.recovery.TestZKRMStateStore |
|   | hadoop.yarn.server.resourcemanager.reservation.TestReservationSystem |
| Timed out junit tests | 
org.apache.hadoop.yarn.server.resourcemanager.federation.TestFederationRMStateStoreService
 |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:5b98639 |
| JIRA Issue | YARN-7401 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12894238/YARN-7401.001.patch |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  shadedclient  findbugs  checkstyle  |
| uname | Linux 9f2a82d30ce7 3.13.0-116-generic #163-Ubuntu SMP Fri Mar 31 
14:13:22 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / dcd99c4 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_131 |
| findbugs | v3.1.0-RC1 |
| unit | 
https://builds.apache.org/job/PreCommit-YARN-Build/18361/artifact/out/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-YARN-Build/18361/testReport/ |
| Max. process+thread count | 4264 (vs. ulimit of 5000) |
| modules | C: 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
 U: 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
 |
| Console output | 
https://builds.apache.org/job/PreCommit-YARN-Build/18361/console |
| Powered by | Apache Yetus 0.7.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Reduce lock contention in ClusterNodeTracker#getClusterCapacity()
> -----------------------------------------------------------------
>
>                 Key: YARN-7401
>                 URL: https://issues.apache.org/jira/browse/YARN-7401
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: resourcemanager
>    Affects Versions: 3.1.0
>            Reporter: Daniel Templeton
>            Assignee: Daniel Templeton
>         Attachments: YARN-7401.001.patch
>
>
> Profiling the code shows massive latency in 
> {{ClusterNodeTracker.getClusterCapacity()}} on getting the lock.



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