Redis source code analysis: redis cluster

Introduce

ASK and MOVED The difference between

MOVED The responsibility of the representative slot has been transferred from one node to another , Client received slot i Of MOVED Every subsequent slot encountered after the error i Command when requested , Can send commands directly to MOVED Node to

ASK It's just 2 A temporary error used by nodes in the process of migrating slots , Client received slot i Of ASK After the error, the command will only be sent to... In the next request ASK Node to , It will not have any impact on the follow-up

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