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Discussion on: Ordered queue processing in Azure Functions with Sessions

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Ramesh Janjyam

great article. thanks a lot for writing this.
could you please share your thoughts for processing in-order for cosmosdb change feed trigger? From the docs I read, it's not clear to me how it works. We are planning to use cosmos for achieving atomicity between making an entry in db and raising an event. There are cases where I need to maintain order when processing the change feed. when azure functions are scaled out to multiple instances do they process change feed of a specific partition key in parallel? or even a single instance of azure function process feed messages in parallel?