What is the significance of user limit factor while configuring queues in yarn queue manager in ambari?

[#1]

@Neeraj Sabharwal @Artem Ervits Can anyone help me with explanation? if i put user limit factor as 3.5, what it will do?

[#2]

Hi @Ram D

Please look at this..

https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.3.2/bk_yarn_resource_mgt/content/setting_user_l...

hope this helps.

[#3]

I am asking about user limit factor in yarn queue manager? if we click on created queue under root, it shows user limit factor. what is the significance of it?

[#4 · Accepted solution]

Hi @Ram D

The explanation for the parameter is:

The multiple of the queue capacity which can be configured to allow a single user to acquire more resources. By default this is set to 1 which ensures that a single user can never take more than the queue's configured capacity irrespective of how idle the cluster is. Value is specified as a float.

There are two queue parms capacity and max capacity.

The max determines elasticity and it is at queue level.

We have to adjust the user-limit-factor so that user can leverage more than just the capacity. What it says is a user can use X number of times the capacity of the queue within under max capacity.

Hope this helps !

[#5]

Thank you. @bmadala