KIP-1018 — Introduce max remote fetch timeout config for DelayedRemoteFetch requests

Accepted Kafka 3.8 Tiered StorageBroker

Adds a dedicated remote.fetch.max.wait.ms broker configuration for the DelayedRemoteFetchPurgatory timeout used when fetching from tiered (remote) storage, independent of the consumer's fetch.max.wait.ms. The shared fetch.max.wait.ms default (500ms) was too short for remote storage fetches during degraded conditions, causing excessive purgatory expiration and retry storms against the remote storage layer.

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