MySQL NDB Cluster API Developer Guide
The following list enumerates all NDB
errors of
type OL (Overload
error).
1221
DMEC
REDO buffers overloaded (increase RedoBuffer)
1518
DMEC
IO overload error
4006
DMEC
Connect failure - out of connection objects (increase MaxNoOfConcurrentTransactions)
410
DMEC
REDO log files overloaded (decrease TimeBetweenLocalCheckpoints or increase NoOfFragmentLogFiles)
677
DMEC
Index UNDO buffers overloaded (increase UndoIndexBuffer)
711
DMEC
System busy with node restart, schema operations not allowed
891
DMEC
Data UNDO buffers overloaded (increase UndoDataBuffer)