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https://issues.apache.org/jira/browse/YARN-10127?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prabhu Joseph reassigned YARN-10127:
------------------------------------

    Assignee: Prabhu Joseph

> FSQueueConverter should not set App Ordering Policy to Parent Queue
> -------------------------------------------------------------------
>
>                 Key: YARN-10127
>                 URL: https://issues.apache.org/jira/browse/YARN-10127
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>    Affects Versions: 3.3.0
>            Reporter: Prabhu Joseph
>            Assignee: Prabhu Joseph
>            Priority: Major
>
> FSQueueConverter should not set App Ordering Policy (fair, fifo) to Parent 
> Queue. RM will fail to start if Parent Queue is set with App Ordering Policy.
> {code}
> Error starting ResourceManager
> org.apache.hadoop.yarn.exceptions.YarnRuntimeException: Unable to construct 
> queue ordering policy=fair queue=root
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration.getQueueOrderingPolicy(CapacitySchedulerConfiguration.java:1584)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue.setupQueueConfigs(ParentQueue.java:145)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue.<init>(ParentQueue.java:112)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.AbstractManagedParentQueue.<init>(AbstractManagedParentQueue.java:51)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ManagedParentQueue.<init>(ManagedParentQueue.java:56)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerQueueManager.parseQueue(CapacitySchedulerQueueManager.java:272)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerQueueManager.initializeQueues(CapacitySchedulerQueueManager.java:158)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.initializeQueues(CapacityScheduler.java:751)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.initScheduler(CapacityScheduler.java:361)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.serviceInit(CapacityScheduler.java:426)
>       at 
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
>       at 
> org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:108)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$RMActiveServices.serviceInit(ResourceManager.java:829)
>       at 
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.createAndInitActiveServices(ResourceManager.java:1247)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceInit(ResourceManager.java:324)
>       at 
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:1534)
>  
> {code}
> Input fair-scheduler.xml:
> {code}
> [yarn@mradha-s1-1 /]$ cat /tmp/fair-scheduler.xml 
> <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
> <allocations>
>     <queue name="root">
>         <schedulingPolicy>fair</schedulingPolicy>
>         <queue name="default">
>             <schedulingPolicy>fair</schedulingPolicy>
>         </queue>
>         <queue name="users" type="parent">
>             <schedulingPolicy>fair</schedulingPolicy>
>         </queue>
>     </queue>
>     <queuePlacementPolicy>
>         <rule name="specified" create="true"/>
>         <rule name="nestedUserQueue">
>             <rule name="default" queue="users"/>
>         </rule>
>         <rule name="default" create="true"/>
>     </queuePlacementPolicy>
> </allocations>
> {code}
> Command Used:
> {code}
>  yarn fs2cs -t  -f /tmp/fair-scheduler.xml -y 
> /var/run/cloudera-scm-agent/process/11-yarn-RESOURCEMANAGER/yarn-site.xml -o 
> /tmp/CS
> {code}
> Output capacity-scheduler.xml
> {code}
> <?xml version="1.0" encoding="UTF-8" standalone="no"?><configuration>
> <property><name>yarn.scheduler.capacity.root.auto-create-child-queue.enabled</name><value>true</value><final>false</final><source>programmatically</source></property>
> <property><name>yarn.scheduler.capacity.root.users.capacity</name><value>50.000</value><final>false</final><source>programmatically</source></property>
> <property><name>yarn.scheduler.capacity.root.queues</name><value>default,users</value><final>false</final><source>programmatically</source></property>
> <property><name>yarn.scheduler.capacity.queue-mappings-override.enable</name><value>false</value><final>false</final><source>programmatically</source></property>
> <property><name>yarn.scheduler.capacity.root.default.capacity</name><value>50.000</value><final>false</final><source>programmatically</source></property>
> <property><name>yarn.scheduler.capacity.root.default.auto-create-child-queue.enabled</name><value>true</value><final>false</final><source>programmatically</source></property>
> <property><name>yarn.scheduler.capacity.maximum-am-resource-percent</name><value>0.5</value><final>false</final><source>programmatically</source></property>
> <property><name>yarn.scheduler.capacity.root.users.auto-create-child-queue.enabled</name><value>true</value><final>false</final><source>programmatically</source></property>
> <property><name>yarn.scheduler.capacity.root.default.ordering-policy</name><value>fair</value><final>false</final><source>programmatically</source></property>
> <property><name>yarn.scheduler.capacity.queue-mappings</name><value>u:%user:%user;u:%user:root.users.%user;u:%user:root.default</value><final>false</final><source>programmatically</source></property>
> <property><name>yarn.scheduler.capacity.root.users.ordering-policy</name><value>fair</value><final>false</final><source>programmatically</source></property>
> <property><name>yarn.scheduler.capacity.root.ordering-policy</name><value>fair</value><final>false</final><source>programmatically</source></property>
> </configuration>
> {code}
> Root Queue is set with App Ordering Policy fair which is wrong
> {code}
> <property><name>yarn.scheduler.capacity.root.ordering-policy</name><value>fair</value></property>
> {code}



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