MySQL Error 3960 – ER_GRP_OPERATION_NOT_ALLOWED_GR_MUST_STOP MySQL 15 Views 0 Min Read MySQL Error Message This operation cannot be performed while Group Replication is running; run STOP GROUP_REPLICATION first Reason for the Error ER_GRP_OPERATION_NOT_ALLOWED_GR_MUST_STOP was added in 8.0.20. Related admin November 25, 2024
