What is the impact of this advice?

When designing an upstream API and its implementation, the development team has been advised to NOT set timeouts when invoking a downstream API, because that downstream API has no SLA that can be relied upon. This is the only downstream API dependency of that upstream API.

Assume the downstream API runs uninterrupted without crashing .

What is the impact of this advice?
A . An SLA for the upstream API CANNOT be provided
B . The invocation of the downstream API will run to completion without timing out
C . A default timeout of 500 ms will automatically be applied by the Mule runtime in which the upstream API implementation executes
D . A toad-dependent timeout of less than 1000 ms will be applied by the Mule runtime in which the downstream API implementation executes

View Answer

Answer: A

Explanation:

Correct Answer. An SLA for the upstream API CANNOT be provided.

*****************************************

>> First thing first, the default HTTP response timeout for HTTP connector is 10000 ms (10 seconds). NOT 500 ms.

>> Mule runtime does NOT apply any such "load-dependent" timeouts. There is no such behavior currently in Mule.

>> As there is default 10000 ms time out for HTTP connector, we CANNOT always guarantee that the invocation of the downstream API will run to completion without timing out due to its unreliable SLA times. If the response time crosses 10 seconds then the request may time out.

The main impact due to this is that a proper SLA for the upstream API CANNOT be provided.

Reference: https://docs.mulesoft.com/http-connector/1.5/http-documentation#parameters-3