Shulou(Shulou.com)06/03 Report--

Features:

1. Hierarchical queues: supporting queue layering ensures that subqueues of an organization can share resources before allowing other queues to use resources, providing more control and predictability.

2. Capacity guarantee: a small part of the capacity allocated to the queue, which, in a sense, is controlled by the queue. All applications submitted to the queue will have access to the capacity allocated to the queue. Administrators can configure soft limits and optional hard limits for the capacity allocated to each queue.

3. Security guarantee: each queue has a strict access control list, and the access control list control user can submit the application to a separate queue. At the same time, security ensures that users cannot view or modify applications submitted by other users, supporting each queue and system administrator role.

4. Elasticity: free resources can be allocated to any queue that exceeds capacity. If there are any resources left in one queue, they can be temporarily shared with those queues that need them, and once a new application is submitted to that queue, the resources released by other queues will be returned to the queue.

5. Multi-tenancy: provide a set of restrictions to prevent an application, user, or queue from monopolizing the resources of a queue or cluster. To prevent the cluster from being overwhelmed.

6. Operability:

Support to modify the configuration at run time, and modify the definition and properties of the queue at run time, such as capacity and access control lists. Administrators minimize interference to users in a secure manner.

The administrator can stop the queue at run time to ensure that existing applications are completed, and do not allow the application of rows to be submitted to the queue. If a queue is in STOPPED state, new applications cannot be submitted to the queue or to subqueues of the queue. Existing applications continue to execute until they are complete, so that applications in the queue can be emptied in an elegant manner. Administrators can restart stopped queues

7. Resource-based scheduling: supports resource-intensive applications, which can selectively specify higher resources than the default. Memory is currently supported as a resource requirement

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