Azure function set maximum concurrency

Question

Is it possible to set the maximum number of concurrently running function instances when using the consumption plan. I'm aware that I can set some max numbers in the host.json - but that is for a single function instance. So even when I set

{
  "queues": {
    "batchSize": 1,    
    "newBatchThreshold": 1
  }
}

It just starts to scale out to multiple instances. This would be perfect if the my backend could handle the load, but in my case it can't so I would like function app to have a max number of parallelism set, e.g. max 5 instances.

Community · Accepted Answer · 2017-05-23 11:47:32Z

1

This is not possible at present, though feel free to file an issue on github.

See this post for other discussion on concurrency, your only option from a functions perspective is to switch to dedicated.

edited May 23, 2017 at 11:47

CommunityBot

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answered Feb 16, 2017 at 18:44

Matt Mason

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1 Comment

sjkp Over a year ago

That is pretty sad. Guess I have to open an issue then.

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