Unknown result error Messages

NDB Error CodeMySQL Error CodeNDB Error ClassificationError Message
4007DMECURSend to ndbd node failed
4008DMECURReceive from NDB failed
4012DMECURRequest ndbd time-out, maybe due to high load or communication problems
4013DMECURRequest timed out in waiting for node failure
4024DMECURTime-out, most likely caused by simple read or cluster failure