Read queries against a Redis Cluster replica node are disabled by default, but you can use the READONLY command to change this behavior on a per- connection basis. The READWRITE command resets the readonly mode flag of a connection back to readwrite.

Redis Enterprise and Redis Cloud compatibility

Redis Enterprise	Redis Cloud	Notes
❌ Standard ❌ Active-Active	❌ Standard ❌ Active-Active

Return information

RESP2 RESP3

Simple string reply: OK.