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https://issues.apache.org/jira/browse/YARN-5309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15369101#comment-15369101
 ] 

Hadoop QA commented on YARN-5309:
---------------------------------

| (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 29s 
{color} | {color:blue} Docker mode activated. {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 1 new or modified test 
files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 6m 
49s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 26s 
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 
18s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 34s 
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
13s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 0m 
57s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 26s 
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 
25s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 25s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 25s 
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 18s 
{color} | {color:red} hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common: The 
patch generated 3 new + 45 unchanged - 2 fixed = 48 total (was 47) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 28s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
10s {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} findbugs {color} | {color:green} 1m 3s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 28s 
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 2m 15s {color} 
| {color:red} hadoop-yarn-common in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 
15s {color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 16m 40s {color} 
| {color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.yarn.client.api.impl.TestTimelineClient |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:9560f25 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12816424/YARN-5309.002.patch |
| JIRA Issue | YARN-5309 |
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  
unit  findbugs  checkstyle  |
| uname | Linux ed4f4a72447f 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed 
Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh 
|
| git revision | trunk / 9bdb5be |
| Default Java | 1.8.0_91 |
| findbugs | v3.0.0 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-YARN-Build/12254/artifact/patchprocess/diff-checkstyle-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-common.txt
 |
| unit | 
https://builds.apache.org/job/PreCommit-YARN-Build/12254/artifact/patchprocess/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-common.txt
 |
| unit test logs |  
https://builds.apache.org/job/PreCommit-YARN-Build/12254/artifact/patchprocess/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-common.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-YARN-Build/12254/testReport/ |
| 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/12254/console |
| Powered by | Apache Yetus 0.3.0   http://yetus.apache.org |


This message was automatically generated.



> SSLFactory truststore reloader thread leak in TimelineClientImpl
> ----------------------------------------------------------------
>
>                 Key: YARN-5309
>                 URL: https://issues.apache.org/jira/browse/YARN-5309
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: timelineserver, yarn
>    Affects Versions: 2.7.1
>            Reporter: Thomas Friedrich
>            Assignee: Weiwei Yang
>         Attachments: YARN-5309.001.patch, YARN-5309.002.patch
>
>
> We found a similar issue as HADOOP-11368 in TimelineClientImpl. The class 
> creates an instance of SSLFactory in newSslConnConfigurator and subsequently 
> creates the ReloadingX509TrustManager instance which in turn starts a trust 
> store reloader thread. 
> However, the SSLFactory is never destroyed and hence the trust store reloader 
> threads are not killed.
> This problem was observed by a customer who had SSL enabled in Hadoop and 
> submitted many queries against the HiveServer2. After a few days, the HS2 
> instance crashed and from the Java dump we could see many (over 13000) 
> threads like this:
> "Truststore reloader thread" #126 daemon prio=5 os_prio=0 
> tid=0x00007f680d2e3000 nid=0x98fd waiting on 
> condition [0x00007f67e482c000]
>    java.lang.Thread.State: TIMED_WAITING (sleeping)
>         at java.lang.Thread.sleep(Native Method)
>         at org.apache.hadoop.security.ssl.ReloadingX509TrustManager.run
> (ReloadingX509TrustManager.java:225)
>         at java.lang.Thread.run(Thread.java:745)
> HiveServer2 uses the JobClient to submit a job:
> Thread [HiveServer2-Background-Pool: Thread-188] (Suspended (breakpoint at 
> line 89 in 
> ReloadingX509TrustManager))   
>       owns: Object  (id=464)  
>       owns: Object  (id=465)  
>       owns: Object  (id=466)  
>       owns: ServiceLoader<S>  (id=210)        
>       ReloadingX509TrustManager.<init>(String, String, String, long) line: 89 
>       FileBasedKeyStoresFactory.init(SSLFactory$Mode) line: 209       
>       SSLFactory.init() line: 131     
>       TimelineClientImpl.newSslConnConfigurator(int, Configuration) line: 532 
>       TimelineClientImpl.newConnConfigurator(Configuration) line: 507 
>       TimelineClientImpl.serviceInit(Configuration) line: 269 
>       TimelineClientImpl(AbstractService).init(Configuration) line: 163       
>       YarnClientImpl.serviceInit(Configuration) line: 169     
>       YarnClientImpl(AbstractService).init(Configuration) line: 163   
>       ResourceMgrDelegate.serviceInit(Configuration) line: 102        
>       ResourceMgrDelegate(AbstractService).init(Configuration) line: 163      
>       ResourceMgrDelegate.<init>(YarnConfiguration) line: 96  
>       YARNRunner.<init>(Configuration) line: 112      
>       YarnClientProtocolProvider.create(Configuration) line: 34       
>       Cluster.initialize(InetSocketAddress, Configuration) line: 95   
>       Cluster.<init>(InetSocketAddress, Configuration) line: 82       
>       Cluster.<init>(Configuration) line: 75  
>       JobClient.init(JobConf) line: 475       
>       JobClient.<init>(JobConf) line: 454     
>       MapRedTask(ExecDriver).execute(DriverContext) line: 401 
>       MapRedTask.execute(DriverContext) line: 137     
>       MapRedTask(Task<T>).executeTask() line: 160     
>       TaskRunner.runSequential() line: 88     
>       Driver.launchTask(Task<Serializable>, String, boolean, String, int, 
> DriverContext) line: 1653   
>       Driver.execute() line: 1412     
> For every job, a new instance of JobClient/YarnClientImpl/TimelineClientImpl 
> is created. But because the HS2 process stays up for days, the previous trust 
> store reloader threads are still hanging around in the HS2 process and 
> eventually use all the resources available. 
> It seems like a similar fix as HADOOP-11368 is needed in TimelineClientImpl 
> but it doesn't have a destroy method to begin with. 
> One option to avoid this problem is to disable the yarn timeline service 
> (yarn.timeline-service.enabled=false).



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