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https://issues.apache.org/jira/browse/YARN-5039?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15279018#comment-15279018
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Nathan Roberts commented on YARN-5039:
--------------------------------------
Thanks [~milesc]! Still not quite enough. How about
org.apache.hadoop.yarn.server.resourcemanager.scheduler?
BTW. Thanks so much for helping to track this down.
> Applications ACCEPTED but not starting
> --------------------------------------
>
> Key: YARN-5039
> URL: https://issues.apache.org/jira/browse/YARN-5039
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.7.2
> Reporter: Miles Crawford
> Attachments: Screen Shot 2016-05-04 at 1.57.19 PM.png, Screen Shot
> 2016-05-04 at 2.41.22 PM.png, capacity-scheduler-at-debug.log.gz,
> queue-config.log, resource-manager-application-starts.log.gz,
> yarn-yarn-resourcemanager-ip-10-12-47-144.log.gz
>
>
> Often when we submit applications to an incompletely utilized cluster, they
> sit, unable to start for no apparent reason.
> There are multiple nodes in the cluster with available resources, but the
> resourcemanger logs show that scheduling is being skipped. The scheduling is
> skipped because the application itself has reserved the node? I'm not sure
> how to interpret this log output:
> {code}
> 2016-05-04 20:19:21,315 INFO
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler
> (ResourceManager Event Processor): Trying to fulfill reservation for
> application application_1462291866507_0025 on node:
> ip-10-12-43-54.us-west-2.compute.internal:8041
> 2016-05-04 20:19:21,316 INFO
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue
> (ResourceManager Event Processor): Reserved container
> application=application_1462291866507_0025 resource=<memory:50688, vCores:1>
> queue=default: capacity=1.0, absoluteCapacity=1.0,
> usedResources=<memory:1894464, vCores:33>, usedCapacity=0.7126589,
> absoluteUsedCapacity=0.7126589, numApps=2, numContainers=33
> usedCapacity=0.7126589 absoluteUsedCapacity=0.7126589 used=<memory:1894464,
> vCores:33> cluster=<memory:2658304, vCores:704>
> 2016-05-04 20:19:21,316 INFO
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler
> (ResourceManager Event Processor): Skipping scheduling since node
> ip-10-12-43-54.us-west-2.compute.internal:8041 is reserved by application
> appattempt_1462291866507_0025_000001
> 2016-05-04 20:19:22,232 INFO
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler
> (ResourceManager Event Processor): Trying to fulfill reservation for
> application application_1462291866507_0025 on node:
> ip-10-12-43-53.us-west-2.compute.internal:8041
> 2016-05-04 20:19:22,232 INFO
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue
> (ResourceManager Event Processor): Reserved container
> application=application_1462291866507_0025 resource=<memory:50688, vCores:1>
> queue=default: capacity=1.0, absoluteCapacity=1.0,
> usedResources=<memory:1894464, vCores:33>, usedCapacity=0.7126589,
> absoluteUsedCapacity=0.7126589, numApps=2, numContainers=33
> usedCapacity=0.7126589 absoluteUsedCapacity=0.7126589 used=<memory:1894464,
> vCores:33> cluster=<memory:2658304, vCores:704>
> 2016-05-04 20:19:22,232 INFO
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler
> (ResourceManager Event Processor): Skipping scheduling since node
> ip-10-12-43-53.us-west-2.compute.internal:8041 is reserved by application
> appattempt_1462291866507_0025_000001
> 2016-05-04 20:19:22,316 INFO
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler
> (ResourceManager Event Processor): Trying to fulfill reservation for
> application application_1462291866507_0025 on node:
> ip-10-12-43-54.us-west-2.compute.internal:8041
> 2016-05-04 20:19:22,316 INFO
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue
> (ResourceManager Event Processor): Reserved container
> application=application_1462291866507_0025 resource=<memory:50688, vCores:1>
> queue=default: capacity=1.0, absoluteCapacity=1.0,
> usedResources=<memory:1894464, vCores:33>, usedCapacity=0.7126589,
> absoluteUsedCapacity=0.7126589, numApps=2, numContainers=33
> usedCapacity=0.7126589 absoluteUsedCapacity=0.7126589 used=<memory:1894464,
> vCores:33> cluster=<memory:2658304, vCores:704>
> 2016-05-04 20:19:22,316 INFO
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler
> (ResourceManager Event Processor): Skipping scheduling since node
> ip-10-12-43-54.us-west-2.compute.internal:8041 is reserved by application
> appattempt_1462291866507_0025_000001
> {code}
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