[ 
https://issues.apache.org/jira/browse/YARN-9990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16982267#comment-16982267
 ] 

Hadoop QA commented on YARN-9990:
---------------------------------

| (/) *{color:green}+1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
34s{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:green}+1{color} | {color:green} test4tests {color} | {color:green}  0m 
 0s{color} | {color:green} The patch appears to include 4 new or modified test 
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
44s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 19m 
28s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  7m 
49s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
18s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  
0s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
16m 45s{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 
17s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m  
4s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
16s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
47s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  9m 
29s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  9m 
29s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
28s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  
9s{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} 
14m 18s{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 
23s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
47s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  0m 
59s{color} | {color:green} hadoop-yarn-server-web-proxy in the patch passed. 
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  1m 
51s{color} | {color:green} hadoop-yarn-services-api in the patch passed. 
{color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
37s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 83m 20s{color} | 
{color:black} {color} |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Client=19.03.5 Server=19.03.5 Image:yetus/hadoop:104ccca9169 |
| JIRA Issue | YARN-9990 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12986743/YARN-9990-001.patch |
| Optional Tests |  dupname  asflicense  compile  javac  javadoc  mvninstall  
mvnsite  unit  shadedclient  findbugs  checkstyle  |
| uname | Linux 7997a2ed1462 4.15.0-66-generic #75-Ubuntu SMP Tue Oct 1 
05:24:09 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 6c20512 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_222 |
| findbugs | v3.1.0-RC1 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-YARN-Build/25216/testReport/ |
| Max. process+thread count | 581 (vs. ulimit of 5500) |
| modules | C: 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-api
 U: hadoop-yarn-project/hadoop-yarn |
| Console output | 
https://builds.apache.org/job/PreCommit-YARN-Build/25216/console |
| Powered by | Apache Yetus 0.8.0   http://yetus.apache.org |


This message was automatically generated.



> Testcase fails with "Insufficient configured threads: required=16 < max=10"
> ---------------------------------------------------------------------------
>
>                 Key: YARN-9990
>                 URL: https://issues.apache.org/jira/browse/YARN-9990
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 3.3.0
>            Reporter: Prabhu Joseph
>            Assignee: Prabhu Joseph
>            Priority: Major
>         Attachments: YARN-9990-001.patch
>
>
> Testcase fails with "Insufficient configured threads: required=16 < max=10". 
> Below testcases failing 
> 1. TestWebAppProxyServlet
> 2. TestAmFilter
> 3. TestApiServiceClient
> 4. TestSecureApiServiceClient
> {code}
> [ERROR] org.apache.hadoop.yarn.server.webproxy.TestWebAppProxyServlet  Time 
> elapsed: 0.396 s  <<< ERROR!
> java.lang.IllegalStateException: Insufficient configured threads: required=16 
> < max=10 for 
> QueuedThreadPool[qtp1597249648]@5f341870{STARTED,8<=8<=10,i=8,r=1,q=0}[ReservedThreadExecutor@4c762604{s=0/1,p=0}]
>       at 
> org.eclipse.jetty.util.thread.ThreadPoolBudget.check(ThreadPoolBudget.java:156)
>       at 
> org.eclipse.jetty.util.thread.ThreadPoolBudget.leaseTo(ThreadPoolBudget.java:130)
>       at 
> org.eclipse.jetty.util.thread.ThreadPoolBudget.leaseFrom(ThreadPoolBudget.java:182)
>       at 
> org.eclipse.jetty.io.SelectorManager.doStart(SelectorManager.java:255)
>       at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
>       at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
>       at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
>       at 
> org.eclipse.jetty.server.AbstractConnector.doStart(AbstractConnector.java:283)
>       at 
> org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:81)
>       at 
> org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:231)
>       at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
>       at org.eclipse.jetty.server.Server.doStart(Server.java:385)
>       at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
>       at 
> org.apache.hadoop.yarn.server.webproxy.TestWebAppProxyServlet.start(TestWebAppProxyServlet.java:102)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.lang.reflect.Method.invoke(Method.java:498)
>       at 
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
>       at 
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
>       at 
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
>       at 
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
>       at 
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
>       at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
> [INFO] Running org.apache.hadoop.yarn.server.webproxy.amfilter.TestAmFilter
> [ERROR] Tests run: 4, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 2.326 
> s <<< FAILURE! - in 
> org.apache.hadoop.yarn.server.webproxy.amfilter.TestAmFilter
> [ERROR] 
> testFindRedirectUrl(org.apache.hadoop.yarn.server.webproxy.amfilter.TestAmFilter)
>   Time elapsed: 0.306 s  <<< ERROR!
> java.lang.IllegalStateException: Insufficient configured threads: required=16 
> < max=10 for 
> QueuedThreadPool[qtp485041780]@1ce92674{STARTED,8<=8<=10,i=8,r=1,q=0}[ReservedThreadExecutor@31f924f5{s=0/1,p=0}]
>       at 
> org.eclipse.jetty.util.thread.ThreadPoolBudget.check(ThreadPoolBudget.java:156)
>       at 
> org.eclipse.jetty.util.thread.ThreadPoolBudget.leaseTo(ThreadPoolBudget.java:130)
>       at 
> org.eclipse.jetty.util.thread.ThreadPoolBudget.leaseFrom(ThreadPoolBudget.java:182)
>       at 
> org.eclipse.jetty.io.SelectorManager.doStart(SelectorManager.java:255)
>       at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
>       at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
>       at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
>       at 
> org.eclipse.jetty.server.AbstractConnector.doStart(AbstractConnector.java:283)
>       at 
> org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:81)
>       at 
> org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:231)
>       at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
>       at org.eclipse.jetty.server.Server.doStart(Server.java:385)
>       at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
>       at 
> org.apache.hadoop.yarn.server.webproxy.amfilter.TestAmFilter.startHttpServer(TestAmFilter.java:180)
>       at 
> org.apache.hadoop.yarn.server.webproxy.amfilter.TestAmFilter.testFindRedirectUrl(TestAmFilter.java:155)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.lang.reflect.Method.invoke(Method.java:498)
>       at 
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
>       at 
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
>       at 
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
>       at 
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
>       at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
>       at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
>       at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
>       at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
>       at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
>       at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
>       at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
>       at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
>       at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
> [ERROR] org.apache.hadoop.yarn.service.client.TestApiServiceClient  Time 
> elapsed: 0.39 s  <<< ERROR!
> java.lang.IllegalStateException: Insufficient configured threads: required=16 
> < max=10 for 
> QueuedThreadPool[qtp717386707]@2ac273d3{STARTED,8<=8<=10,i=8,r=1,q=0}[ReservedThreadExecutor@1e4a7dd4{s=0/1,p=0}]
>       at 
> org.eclipse.jetty.util.thread.ThreadPoolBudget.check(ThreadPoolBudget.java:156)
>       at 
> org.eclipse.jetty.util.thread.ThreadPoolBudget.leaseTo(ThreadPoolBudget.java:130)
>       at 
> org.eclipse.jetty.util.thread.ThreadPoolBudget.leaseFrom(ThreadPoolBudget.java:182)
>       at 
> org.eclipse.jetty.io.SelectorManager.doStart(SelectorManager.java:255)
>       at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
>       at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
>       at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
>       at 
> org.eclipse.jetty.server.AbstractConnector.doStart(AbstractConnector.java:283)
>       at 
> org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:81)
>       at 
> org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:231)
>       at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
>       at org.eclipse.jetty.server.Server.doStart(Server.java:385)
>       at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
>       at 
> org.apache.hadoop.yarn.service.client.TestApiServiceClient.setup(TestApiServiceClient.java:100)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.lang.reflect.Method.invoke(Method.java:498)
>       at 
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
>       at 
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
>       at 
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
>       at 
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
>       at 
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
>       at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
> [INFO] Running 
> org.apache.hadoop.yarn.service.client.TestSecureApiServiceClient
> [ERROR] Tests run: 2, Failures: 0, Errors: 2, Skipped: 0, Time elapsed: 3.274 
> s <<< FAILURE! - in 
> org.apache.hadoop.yarn.service.client.TestSecureApiServiceClient
> [ERROR] 
> testHttpSpnegoChallenge(org.apache.hadoop.yarn.service.client.TestSecureApiServiceClient)
>   Time elapsed: 1.729 s  <<< ERROR!
> java.lang.IllegalStateException: Insufficient configured threads: required=16 
> < max=10 for 
> QueuedThreadPool[qtp1008315045]@3c19aaa5{STARTED,8<=8<=10,i=8,r=1,q=0}[ReservedThreadExecutor@1649b0e6{s=0/1,p=0}]
>       at 
> org.eclipse.jetty.util.thread.ThreadPoolBudget.check(ThreadPoolBudget.java:156)
>       at 
> org.eclipse.jetty.util.thread.ThreadPoolBudget.leaseTo(ThreadPoolBudget.java:130)
>       at 
> org.eclipse.jetty.util.thread.ThreadPoolBudget.leaseFrom(ThreadPoolBudget.java:182)
>       at 
> org.eclipse.jetty.io.SelectorManager.doStart(SelectorManager.java:255)
>       at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
>       at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
>       at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
>       at 
> org.eclipse.jetty.server.AbstractConnector.doStart(AbstractConnector.java:283)
>       at 
> org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:81)
>       at 
> org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:231)
>       at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
>       at org.eclipse.jetty.server.Server.doStart(Server.java:385)
>       at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
>       at 
> org.apache.hadoop.yarn.service.client.TestSecureApiServiceClient.setUp(TestSecureApiServiceClient.java:149)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.lang.reflect.Method.invoke(Method.java:498)
>       at 
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
>       at 
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
>       at 
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
>       at 
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
>       at 
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
>       at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
>       at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
>       at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
>       at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
>       at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
>       at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
>       at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
>       at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
>       at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
> [ERROR] 
> testAuthorizationHeader(org.apache.hadoop.yarn.service.client.TestSecureApiServiceClient)
>   Time elapsed: 1.344 s  <<< ERROR!
> java.lang.IllegalStateException: Insufficient configured threads: required=16 
> < max=10 for 
> QueuedThreadPool[qtp464064894]@1ba9117e{STARTED,8<=8<=10,i=8,r=1,q=0}[ReservedThreadExecutor@27ff5d15{s=0/1,p=0}]
>       at 
> org.eclipse.jetty.util.thread.ThreadPoolBudget.check(ThreadPoolBudget.java:156)
>       at 
> org.eclipse.jetty.util.thread.ThreadPoolBudget.leaseTo(ThreadPoolBudget.java:130)
>       at 
> org.eclipse.jetty.util.thread.ThreadPoolBudget.leaseFrom(ThreadPoolBudget.java:182)
>       at 
> org.eclipse.jetty.io.SelectorManager.doStart(SelectorManager.java:255)
>       at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
>       at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
>       at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
>       at 
> org.eclipse.jetty.server.AbstractConnector.doStart(AbstractConnector.java:283)
>       at 
> org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:81)
>       at 
> org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:231)
>       at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
>       at org.eclipse.jetty.server.Server.doStart(Server.java:385)
>       at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
>       at 
> org.apache.hadoop.yarn.service.client.TestSecureApiServiceClient.setUp(TestSecureApiServiceClient.java:149)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.lang.reflect.Method.invoke(Method.java:498)
>       at 
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
>       at 
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
>       at 
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
>       at 
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
>       at 
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
>       at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
>       at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
>       at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
>       at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
>       at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
>       at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
>       at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
>       at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
>       at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
>       at 
> org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
>       at 
> org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
> {code}



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