Changing the number of replicas of a pod based on size of message queue

A non-transitory machine-readable storage medium encoded with instructions executable by a hardware processor of a computing component, the machine-readable storage medium comprising instructions to cause the hardware processor to perform a method comprising:

• determining a number of replicas of a pod;
• determining an owner threshold for a size of a message queue of the replicas of the pod, the size representing a number of messages waiting in the message queue to be processed by the replicas of the pod, the owner threshold being provided by an owner of the pod;
• occasionally determining, for the replicas of the pod, the size of the message queue, and a rate of change of the size of the message queue;
• and
• responsive to determining the size of the message queue, changing the number of replicas of the pod based on the determined size of the message queue, the determined rate of change of the size of the message queue, and the owner threshold.

A method comprising:

• determining a number of replicas of a pod;
• determining an owner threshold for a size of a message queue of the replicas of the pod, the size representing a number of messages waiting in the message queue to be processed by the replicas of the pod, the owner threshold being provided by an owner of the pod;
• occasionally determining, for the replicas of the pod, the size of the message queue, and a rate of change of the size of the message queue;
• and
• responsive to determining the size of the message queue, changing the number of replicas of the pod based on the determined size of the message queue, the determined rate of change of the size of the message queue, and the owner threshold.