Monitoring a Neptune global database using CloudWatch metrics

Neptune supports the following CloudWatch metrics that you can use to monitor a Neptune global database:

• GlobalDbDataTransferBytes   –   The number of bytes of redo log data transferred from the primary AWS Region to a secondary AWS Region in a Neptune global database.

• GlobalDbReplicatedWriteIO   –   The number of write I/O operations replicated from the primary AWS Region in the global database to the cluster volume in a secondary AWS Region.

  The billing calculations for each DB cluster in a Neptune global database use the VolumeWriteIOPS metric to account for writes performed within that cluster. For the primary DB cluster, the billing calculations use NeptuneGlobalDbReplicatedWriteIO to account for the cross-region replication to secondary DB clusters.

• GlobalDbProgressLag   –   The number of milliseconds that a secondary cluster is behind the primary cluster for both user transactions and system transactions.

Metric	Dimension	Published in	Units
GlobalDbDataTransferBytes	SourceRegion, DBClusterIdentifier	Secondary	Bytes
GlobalDbReplicatedWriteIO	SourceRegion, DBClusterIdentifier	Secondary	Count
GlobalDbProgressLag	DBClusterIdentifier, SecondaryRegion : in Primary DBClusterIdentifier, SourceRegion : in Secondary	Primary, Secondary	Milliseconds