How yarn queue names should be used while executing the mapreduce jobs.

[#1]

After configuring below queue's in yarn and after submitting the jobs to created Queue's, the jobs were failing with below error.
ERROR:
Failed to submit application_XXXXXX to YARN : Application application_XXXXXX submitted by user  to unknown queue: root.q01
## Queue's created in YARN:
----------------------------------------
hdfs@master01:~> mapred queue -list
======================
Queue Name : default
Queue State : stopped
Scheduling Info : Capacity: 0.0, MaximumCapacity: 50.0, CurrentCapacity: 0.0
======================
Queue Name : q01
Queue State : running
Scheduling Info : Capacity: 50.0, MaximumCapacity: 60.000004, CurrentCapacity: 0.0
======================
Queue Name : q02
Queue State : running
Scheduling Info : Capacity: 50.0, MaximumCapacity: 50.0, CurrentCapacity: 0.0
    ======================
    Queue Name : child02
    Queue State : running
    Scheduling Info : Capacity: 100.0, MaximumCapacity: 100.0, CurrentCapacity: 0.0
-----------------------------------------
## Below are the few scenarios, where jobs failed to submit to Q with unknown Queue.
Scenario 1: JOB failed to submit, when Q named was provided by appending with parent root Q name(root.q01).
--------------------------------------------
set mapred.job.queue.name=root.q01;
insert into test_u01 values (1);
Failed to submit application_1470318759626_0046 to YARN : Application application_1470318759626_0046 submitted by user user1 to unknown queue: root.q01
Scenario 2: Job executed successfully, when Q named was provided only with child Q(q01).
======================================
set mapred.job.queue.name=q01;
insert into test_u01 values (1);
INFO  : Table default.test_u01 stats: [numFiles=40, numRows=40, totalSize=80, rawDataSize=40]
No rows affected (20.125 seconds)
======================================
Scenario 3: Need to execute job into child of a parent Q and where the parent Q is child of root Q. I would to execute the job in child02 which was created in the above Q's but with below Q name it error.
======================================
set mapred.job.queue.name=q02.child02;
insert into test_u01 values (1);
Caused by: org.apache.hadoop.yarn.exceptions.YarnException: Failed to submit application_1470318759626_0049 to YARN : Application application_1470318759626_0049 submitted by user user1 to unknown queue: q02.child02
=====================================
Can anyone, please explain how to use Queue names while executing mapreduce jobs and what is the best source to get the actual Q names. And for above scenario 3, what should be the Q name to execute the job successfully in the child Q.

[#2]

Did you refresh the YARN queues?

yarn rmadmin -refreshQueues

[#3]

@Deepesh

Am adding the Q's from Yarn Queue Manager, so after adding the Q's am refreshing the capacity scheduler.

[#4]

Can you check the ResourceManager UI that it reflects the newly created queues?

[#5]

@Deepesh

I have verified in ResourceManager UI and the queues were in place and i have even pasted the 'mapred queue -list' command output. My concern was to, how the queue names needs to used for running the jobs in to the specified queue but not the queues should to reflected.

[#6]

Didn't scroll thru the code window that had the full context. I believe in Capacity Scheduler (which is what you are using) the queue name is the leaf node name. So instead of using q02.child02 you would simple use child02.

[#7]

Regarding how to specify the YARN queues, this link may be useful: https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.4.2/bk_yarn_resource_mgt/content/setting_up_que...