Support for retries - Githubissues

openfaas / connector-sdk

SDK for connecting events to functions

MIT License

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Open itsmurugappan opened 5 years ago

itsmurugappan commented 5 years ago

Issue: Incase the openfaas gateway is down or function does not scale in time from 0 to 1. The messages might be lost.

Proposal: While calling the gateway is it a good idea to add retries and on multiple failures add the message back to the queue.

alexellis commented 5 years ago

Hi thanks for the suggestion.

I'm happy to explore this idea. There are a number of ways it can be achieved:

at the publisher/client
in the individual connector implementation
in this SDK generically
in the gateway
through use of a service mesh or proxy (envoy for instance can be set to automatically retry)

itsmurugappan commented 5 years ago

Thank you Alex.

In this sdk, retries can be added for function calls for non 200 responses.
In the connector implementation, failure message can be added back to the queue.