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MySQL NDB Cluster API Developer Guide
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2.4.2.11 Overload error

The following list enumerates all NDB errors of type OL (Overload error).

1221

MySQL error.  DMEC

Error message.  REDO buffers overloaded (increase RedoBuffer)

4006

MySQL error.  DMEC

Error message.  Connect failure - out of connection objects (increase MaxNoOfConcurrentTransactions)

410

MySQL error.  DMEC

Error message.  REDO log files overloaded (decrease TimeBetweenLocalCheckpoints or increase NoOfFragmentLogFiles)

677

MySQL error.  DMEC

Error message.  Index UNDO buffers overloaded (increase UndoIndexBuffer)

701

MySQL error.  DMEC

Error message.  System busy with other schema operation

711

MySQL error.  DMEC

Error message.  System busy with node restart, schema operations not allowed

891

MySQL error.  DMEC

Error message.  Data UNDO buffers overloaded (increase UndoDataBuffer)