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https://issues.apache.org/jira/browse/YARN-4140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14739349#comment-14739349
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Wangda Tan commented on YARN-4140:
----------------------------------
We force client doesn't set node-label expression (in YARN-2694) because we
don't want client set different node-label-expression for different
resourceName in a same priority (for priority=2, "rack-1"'s
node-label-expression="x", but "*"'s node-label-expression="y"). Remember we
count pendingResource by using "*" of each priority.
But we can normalize node-label-expression once they sent to scheduler.
Make sense?
> RM container allocation delayed incase of app submitted to Nodelabel partition
> ------------------------------------------------------------------------------
>
> Key: YARN-4140
> URL: https://issues.apache.org/jira/browse/YARN-4140
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: api, client, resourcemanager
> Reporter: Bibin A Chundatt
> Assignee: Bibin A Chundatt
>
> Trying to run application on Nodelabel partition I found that the
> application execution time is delayed by 5 – 10 min for 500 containers .
> Total 3 machines 2 machines were in same partition and app submitted to same.
> After enabling debug was able to find the below
> # From AM the container ask is for OFF-SWITCH
> # RM allocating all containers to NODE_LOCAL as shown in logs below.
> # So since I was having about 500 containers time taken was about – 6 minutes
> to allocate 1st map after AM allocation.
> # Tested with about 1K maps using PI job took 17 minutes to allocate next
> container after AM allocation
> Once 500 container allocation on NODE_LOCAL is done the next container
> allocation is done on OFF_SWITCH
> {code}
> 2015-09-09 15:21:58,954 DEBUG
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplicationAttempt:
> showRequests: application=application_1441791998224_0001 request={Priority:
> 20, Capability: <memory:512, vCores:1>, # Containers: 500, Location:
> /default-rack, Relax Locality: true, Node Label Expression: }
> 2015-09-09 15:21:58,954 DEBUG
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplicationAttempt:
> showRequests: application=application_1441791998224_0001 request={Priority:
> 20, Capability: <memory:512, vCores:1>, # Containers: 500, Location: *, Relax
> Locality: true, Node Label Expression: 3}
> 2015-09-09 15:21:58,954 DEBUG
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplicationAttempt:
> showRequests: application=application_1441791998224_0001 request={Priority:
> 20, Capability: <memory:512, vCores:1>, # Containers: 500, Location:
> host-10-19-92-143, Relax Locality: true, Node Label Expression: }
> 2015-09-09 15:21:58,954 DEBUG
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplicationAttempt:
> showRequests: application=application_1441791998224_0001 request={Priority:
> 20, Capability: <memory:512, vCores:1>, # Containers: 500, Location:
> host-10-19-92-117, Relax Locality: true, Node Label Expression: }
> 2015-09-09 15:21:58,954 DEBUG
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue:
> Assigned to queue: root.b.b1 stats: b1: capacity=1.0, absoluteCapacity=0.5,
> usedResources=<memory:0, vCores:0>, usedCapacity=0.0,
> absoluteUsedCapacity=0.0, numApps=1, numContainers=1 --> <memory:0,
> vCores:0>, NODE_LOCAL
> {code}
>
> {code}
> 2015-09-09 14:35:45,467 DEBUG
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue:
> Assigned to queue: root.b.b1 stats: b1: capacity=1.0, absoluteCapacity=0.5,
> usedResources=<memory:0, vCores:0>, usedCapacity=0.0,
> absoluteUsedCapacity=0.0, numApps=1, numContainers=1 --> <memory:0,
> vCores:0>, NODE_LOCAL
> 2015-09-09 14:35:45,831 DEBUG
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue:
> Assigned to queue: root.b.b1 stats: b1: capacity=1.0, absoluteCapacity=0.5,
> usedResources=<memory:0, vCores:0>, usedCapacity=0.0,
> absoluteUsedCapacity=0.0, numApps=1, numContainers=1 --> <memory:0,
> vCores:0>, NODE_LOCAL
> 2015-09-09 14:35:46,469 DEBUG
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue:
> Assigned to queue: root.b.b1 stats: b1: capacity=1.0, absoluteCapacity=0.5,
> usedResources=<memory:0, vCores:0>, usedCapacity=0.0,
> absoluteUsedCapacity=0.0, numApps=1, numContainers=1 --> <memory:0,
> vCores:0>, NODE_LOCAL
> 2015-09-09 14:35:46,832 DEBUG
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue:
> Assigned to queue: root.b.b1 stats: b1: capacity=1.0, absoluteCapacity=0.5,
> usedResources=<memory:0, vCores:0>, usedCapacity=0.0,
> absoluteUsedCapacity=0.0, numApps=1, numContainers=1 --> <memory:0,
> vCores:0>, NODE_LOCAL
> {code}
> {code}
> dsperf@host-127:/opt/bibin/dsperf/HAINSTALL/install/hadoop/resourcemanager/logs1>
> cat hadoop-dsperf-resourcemanager-host-127.log | grep "NODE_LOCAL" | grep
> "root.b.b1" | wc -l
> 500
> {code}
>
> (Consumes about 6 minutes)
>
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