How Do I Resolve the Error "CROSSSLOT Keys in request don't hash to the same slot"?

Scenarios

When multi-key commands are executed in a GeminiDB Redis instance, the error "CROSSSLOT Keys in request don't hash to the same slot" may be reported.

Error Cause

Commands involving multiple keys were executed across slots in a GeminiDB Redis cluster instance. For example, EVAL and BRPOPLPUSH were executed across slots.

Solution

• Change key names and use hash tags to ensure that the involved keys are in the same slot. Avoid data skew when you use hash tags. For more information, see Which Commands Require Hash Tags in GeminiDB Redis Cluster Instances?.
• When hash tags cannot be used, change the instance type to primary/standby. For details, see Compatible APIs and Versions.