Azure function Host.JSON

Question

Hi ,

I am trying to understand the Azure Function App Host.JSON file.

configuration defined in HOST.json file is at a global level or at App service instance level?

for ServiceBus we set MaximumConcurrency to 120. Is that configuration per appservice plan instance or global?

if we have 5 app service plans instantiated then will i see 5*120 concurrency or only maximum120?

Answer 1

Hello @amarnath manchala , Welcome to Microsoft QnA. Thank you for the question.

host level settings are generally applied at function app level. So the global max would basically be

• Number of Function Apps per instance ( cases where you have configured scale out limit , etc.) * Number of app service Instances

Please let me know if this helps.