Event Reports Generated in NDB Cluster only logs generated by that management server but not by any of the others. This also means that, should one of the management servers be restarted, only logs generated by that management server are affected by the resetting of log levels caused by the restart. An event report reported in the event logs has the following format: datetime  [ string ]  severity  --  message For example: 09:19:30 2005-07-24 [NDB] INFO -- Node 4 Start phase 4 completed This section discusses all reportable events, ordered by category and severity level within each category. In the event descriptions, GCP and LCP mean “Global Checkpoint”  and “Local Checkpoint” , respectively. 23.5.3.2 NDB Cluster Log Events CONNECTION Events These events are associated with connections between Cluster nodes. Table 23.55 Events associated with connections between cluster nodes Event Priority Severity Level Description Connected 8 INFO Data nodes connected Disconnected 8 ALERT Data nodes disconnected CommunicationClosed 8 INFO SQL node or data node connection closed CommunicationOpened 8 INFO SQL node or data node connection open ConnectedApiVersion 8 INFO Connection using API version CHECKPOINT Events The logging messages shown here are associated with checkpoints. Table 23.56 Events associated with checkpoints Event Priority Severity Level Description GlobalCheckpointStarted 9 INFO Start of GCP: REDO log is written to disk GlobalCheckpointCompleted 10 INFO GCP finished LocalCheckpointStarted 7 INFO Start of LCP: data written to disk LocalCheckpointCompleted 7 INFO LCP completed normally LCPStoppedInCalcKeepGci 0 ALERT LCP stopped LCPFragmentCompleted 11 INFO LCP on a fragment has been completed UndoLogBlocked 7 INFO UNDO logging blocked; buffer near overflow RedoStatus 7 INFO Redo status 4466