ERR max key size exceeded

Resolve the Upstash Redis max key size exceeded error by reducing your key size below the hardcoded 32Kb limit.

Symptom

The client gets an exception similar to:

ReplyError: ERR max key size exceeded. Limit: X bytes, Actual: Z bytes

Diagnosis

Size of the key in the request exceeds the max key size limit, which is 32Kb.

Solution

This is a hardcoded limit and cannot be configured per database. You should reduce the key size.