[ 
https://issues.apache.org/jira/browse/YARN-4230?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14945574#comment-14945574
 ] 

Hadoop QA commented on YARN-4230:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  16m 55s | Pre-patch trunk compilation is 
healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any 
@author tags. |
| {color:green}+1{color} | tests included |   0m  0s | The patch appears to 
include 1 new or modified test files. |
| {color:green}+1{color} | javac |   7m 55s | There were no new javac warning 
messages. |
| {color:green}+1{color} | javadoc |  10m 39s | There were no new javadoc 
warning messages. |
| {color:red}-1{color} | release audit |   0m 16s | The applied patch generated 
1 release audit warnings. |
| {color:green}+1{color} | checkstyle |   0m 49s | There were no new checkstyle 
issues. |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that 
end in whitespace. |
| {color:green}+1{color} | install |   1m 33s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 35s | The patch built with 
eclipse:eclipse. |
| {color:green}+1{color} | findbugs |   1m 33s | The patch does not introduce 
any new Findbugs (version 3.0.0) warnings. |
| {color:green}+1{color} | yarn tests |  61m 55s | Tests passed in 
hadoop-yarn-server-resourcemanager. |
| | | 102m 13s | |
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|| Subsystem || Report/Notes ||
| Patch URL | 
http://issues.apache.org/jira/secure/attachment/12765197/YARN-4230.1.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 874c8ed |
| Release Audit | 
https://builds.apache.org/job/PreCommit-YARN-Build/9361/artifact/patchprocess/patchReleaseAuditProblems.txt
 |
| hadoop-yarn-server-resourcemanager test log | 
https://builds.apache.org/job/PreCommit-YARN-Build/9361/artifact/patchprocess/testrun_hadoop-yarn-server-resourcemanager.txt
 |
| Test Results | 
https://builds.apache.org/job/PreCommit-YARN-Build/9361/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf905.gq1.ygridcore.net 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 |
| Console output | 
https://builds.apache.org/job/PreCommit-YARN-Build/9361/console |


This message was automatically generated.

> Increasing container resource while there is no headroom left will cause 
> ResourceManager to crash
> -------------------------------------------------------------------------------------------------
>
>                 Key: YARN-4230
>                 URL: https://issues.apache.org/jira/browse/YARN-4230
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>            Reporter: MENG DING
>            Assignee: MENG DING
>            Priority: Critical
>         Attachments: YARN-4230.1.patch
>
>
> This issue was found while doing end-to-end test of YARN-1197 in YARN-4175.
> When increasing resource of a container, if there is no headroom left for the 
> user, the ResourceManager crashes with NPE.
> The following is the stack trace:
> {code}
> 15/10/05 20:35:21 INFO capacity.ParentQueue: assignedContainer queue=root 
> usedCapacity=0.9375 absoluteUsedCapacity=0.9375 used=<memory:15360, vCores:9> 
> cluster=<memory:16384, vCores:16>
> 15/10/05 20:35:49 FATAL resourcemanager.ResourceManager: Error in handling 
> event type NODE_UPDATE to the scheduler
> java.lang.NullPointerException
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.allocator.IncreaseContainerAllocator.assignContainers(IncreaseContainerAllocator.java:327)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.allocator.ContainerAllocator.assignContainers(ContainerAllocator.java:66)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaSchedulerApp.assignContainers(FiCaSchedulerApp.java:474)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.assignContainers(LeafQueue.java:819)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue.assignContainersToChildQueues(ParentQueue.java:572)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue.assignContainers(ParentQueue.java:423)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.allocateContainersToNode(CapacityScheduler.java:1177)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:1274)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:134)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:691)
>         at java.lang.Thread.run(Thread.java:745)
> 15/10/05 20:35:49 INFO resourcemanager.ResourceManager: Exiting, bbye..
> {code}



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