Defining Queue Labels for Fair Scheduler

By default, all users share a single queue, named default.

To customize the Fair Scheduler, create an allocation file that lists existing queues and their respective weights and capacities, as explained in Hadoop 2.x Fair Scheduler. In the allocation file, add the following property within the queue section:

<label>labelname</label>

For example:

<queue name="Customer Data Analysis">
   <weight>2.0</weight>
   <label>Fast</label>
</queue>

For a hierarchical queue, note that labels and label policies can be defined on any level of the queue. If a child queue does not have its own labels or label policies, the closest level’s labels and label policies are used.