Reject RedisCluster clients with a clear error#23
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Raises TypeError at TimersBroker construction when handed a RedisCluster client. The default key layout uses two keys per topic without a hash tag, so multi-key Lua scripts and pipelines would fail with CROSSSLOT in Cluster mode. Surfacing the limitation up front is far easier to diagnose than a later runtime CROSSSLOT from inside a Lua eval. Single-primary Redis (including Sentinel) is unchanged.
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Raises TypeError at TimersBroker construction when handed a RedisCluster client. The default key layout uses two keys per topic without a hash tag, so multi-key Lua scripts and pipelines would fail with CROSSSLOT in Cluster mode. Surfacing the limitation up front is far easier to diagnose than a later runtime CROSSSLOT from inside a Lua eval. Single-primary Redis (including Sentinel) is unchanged.