Is your proposal related to a problem?

The long-tail requests sometimes are inevitable between the store-gateway and the external cache service. Lowering the timeouts between the store-gateway and the cache service isn't a proper way to address this problem.

Describe the solution you'd like

If accessing the external cache service takes too long, issue a hedged request to the object storage, as object storages have reasonable latency on average nowadays.

Describe alternatives you've considered

Additional context