You are monitoring an Azure Stream Analytics job. You discover that the Backlogged Input Events metric is increasing slowly and is consistently non-…

Backlogged Input Events: Number of input events that are backlogged. A non-zero value for this

metric implies that your job isn't able to keep up with the number of incoming events. If this value is

slowly increasing or consistently non-zero, you should scale out your job. You should increase the

Streaming Units.

Note: Streaming Units (SUs) represents the computing resources that are allocated to execute a

Stream Analytics job. The higher the number of SUs, the more CPU and memory resources are

allocated for your job.

Reference:

https://docs.microsoft.com/bs-cyrl-ba/azure/stream-analytics/stream-analytics-monitoring