fix(ml): limit load retries #10494
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fix(ml): limit load retries #10494
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Description
The ML service tries to load a model, then on failure clears the cache and retries once. However, a new request will mean another two attempts to load. Given that the service can receive many requests for a model, failing to load/download can cause an excessive number of attempts.
This PR limits a single model instance to one retry across its lifetime. After a model is unloaded or the service restarts, it will be able to re-attempt it.
How Has This Been Tested?
Tested by making a model throw an error on the first attempt, but not the second, and confirming that it still loaded. If I made it throw an error every time, it didn't try to load the model repeatedly.