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Azure Blob Functions's Re-triggering Issue

· One min read
Haochen Qi
Full Stack Developer


Azure Functions is an event-driven platform as a service provided by Microsoft Azure with which developers can focus less on infrastructure level complexity. Function app running on a consumption plan or an elastic plan will be charged per execution.

Some of you may have observed that your old blobs in a blob container re-triggered your blob function app even if you didn't modify them which caused extra cost, especially when your Azure function is connected to some other cost-intensive services.

In this blog, let's discuss the possible reasons for this blob function app anomaly.