Azure 本地开发的功能扩展包版本问题

Question

I have a Java 11 Azure Function with a queue trigger that works as expected when deployed to Azure and properly pulls messages off of the defined service bus topic. However, running the same function locally does not work unless I rollback the version of the Azure Functions binding extensions . If I don't revert the version back, the function starts locally but never pulls messages off the service bus topic.

The variable is the hosts.json file in the project that defines the extension bundle version. For the function deployed to Azure, the following hosts.json file is used which is configured for the latest version of the extension bundle:

{
  "version": "2.0",
  "extensionBundle": {
    "id": "Microsoft.Azure.Functions.ExtensionBundle",
    "version": "[3.3.0, 4.0.0)"
  }
}

The version that works locally is this:

{
  "version": "2.0",
  "extensionBundle": {
    "id": "Microsoft.Azure.Functions.ExtensionBundle",
    "version": "[2.*, 3.0.0)"
  }
}

I have the Azure Function Core Tools v4.0.3971 (latest version) installed on my PC, as do the rest of my team members that all have this same issue.

What am I missing in my local environment that is preventing the latest version of the extension bundle from working?

Answer 1

I tried to reproduce the issue by following steps:

1. Created Azure Functions ( Stack: Java ) in VS Code with Queue Trigger example.
2. By default, version is 3.*, 4.0.0 in host.json and the messages are pulling successfully.

After downgrading to version 2.*, 3.0.0 of azure functions extension bundles in host.json , the messages are pulling off successfully.

When running the azure functions (java), the runtime takes latest version mentioned in the host.json automatically and with which version it is running can be seen in the output terminal when in it is running.