7.2.2.15 Unknown result error Errors

The following table lists and describes NDB Unknown result errorerrors (error type UR).

Table 7.15 This table describes NDB API Unknown result error errors

NDB Error Code MySQL Error Code NDB Error Type Error Message
4009 HA_ERR_NO_CONNECTION UR Cluster Failure
4012 DMEC UR Request ndbd time-out, maybe due to high load or communication problems