Azure Durable Function And Event Grid Integration

[Nilabrata]

Investigative information

• Python Version: 3.10
• Function Runtime Version: 4.11.2.19273
• Core Tools version: 4.0.4829

Repro steps

1. Create an Azure Durable Function.
2. Create an Azure Event Grid and integrate with azure durable function.
3. Using JMeter hitting durable function app end point. JMeter Configuration Ramp Up Time - 0 s, Number of Threads (Users) – 100

Expected behavior

1. 100 “Completed” event should be raised in event grid.
2. 100 results should be stored in Azure Storage.
3. The timing of result in azure storage should be lesser than the event raise time in event grid

Actual behavior

1. But in reality, for 1-2 requests timing of storing result is grater than timing of raising event. Below sharing a example-
   Event Time: “2023-10-18T06:02:29.4099199Z”
   Azure Storage Completion Time: “2023-10-18T06:02:29.4785874Z”