# Availability of Aurora metrics in the Amazon RDS console
<a name="Aurora.Monitoring.Metrics.RDSAvailability"></a>

Not all metrics provided by Amazon Aurora are available in the Amazon RDS console. You can view these metrics using tools such as the AWS CLI and CloudWatch API. Also, some metrics in the Amazon RDS console are either shown only for specific instance classes, or with different names and units of measurement. 

**Topics**
+ [Aurora metrics available in the Last Hour view](#Aurora.Monitoring.Metrics.RDSAvailability.LMV)
+ [Aurora metrics available in specific cases](#Aurora.Monitoring.Metrics.RDSAvailability.specific-cases)
+ [Aurora metrics that aren't available in the console](#Aurora.Monitoring.Metrics.RDSAvailability.unavailable)

## Aurora metrics available in the Last Hour view
<a name="Aurora.Monitoring.Metrics.RDSAvailability.LMV"></a>

You can view a subset of categorized Aurora metrics in the default Last Hour view in the Amazon RDS console. The following table lists the categories and associated metrics displayed in the Amazon RDS console for an Aurora instance.


| Category | Metrics | 
| --- | --- | 
| SQL |  `ActiveTransactions` `BlockedTransactions` `BufferCacheHitRatio` `CommitLatency` `CommitThroughput` `DatabaseConnections` `DDLLatency` `DDLThroughput` `Deadlocks` `DMLLatency` `DMLThroughput` `LoginFailures` `ResultSetCacheHitRatio` `SelectLatency` `SelectThroughput`  | 
| System |  `AuroraReplicaLag` `AuroraReplicaLagMaximum` `AuroraReplicaLagMinimum` `CPUCreditBalance` `CPUCreditUsage` `CPUUtilization` `FreeableMemory` `FreeLocalStorage` (This doesn't apply to Aurora Serverless v2.) `NetworkReceiveThroughput`  | 
| Deployment |  `AuroraReplicaLag` `BufferCacheHitRatio` `ResultSetCacheHitRatio` `SelectThroughput`  | 

## Aurora metrics available in specific cases
<a name="Aurora.Monitoring.Metrics.RDSAvailability.specific-cases"></a>

In addition, some Aurora metrics are either shown only for specific instance classes, or only for DB instances, or with different names and different units of measurement:
+ The `CPUCreditBalance` and `CPUCreditUsage` metrics are displayed only for Aurora MySQL `db.t2` instance classes and for Aurora PostgreSQL `db.t3` instance classes.
+ The following metrics that are displayed with different names, as listed:    
[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Aurora.Monitoring.Metrics.RDSAvailability.html)
+ The following metrics apply to an entire Aurora DB cluster, but are displayed only when viewing DB instances for an Aurora DB cluster in the Amazon RDS console:
  + `VolumeBytesUsed`
  + `VolumeReadIOPs`
  + `VolumeWriteIOPs`
+ The following metrics are displayed in megabytes, instead of bytes, in the Amazon RDS console:
  + `FreeableMemory`
  + `FreeLocalStorage`
  + `NetworkReceiveThroughput`
  + `NetworkTransmitThroughput`
+ The following metrics apply to an Aurora PostgreSQL DB cluster with Aurora Optimized Reads:
  + `AuroraOptimizedReadsCacheHitRatio`
  + `FreeEphemeralStorage`
  + `ReadIOPSEphemeralStorage`
  + `ReadLatencyEphemeralStorage`
  + `ReadThroughputEphemeralStorage`
  + `WriteIOPSEphemeralStorage`
  + `WriteLatencyEphemeralStorage`
  + `WriteThroughputEphemeralStorage`

## Aurora metrics that aren't available in the console
<a name="Aurora.Monitoring.Metrics.RDSAvailability.unavailable"></a>

The following Aurora metrics aren't available in the Amazon RDS console:
+ `AuroraBinlogReplicaLag`
+ `DeleteLatency`
+ `DeleteThroughput`
+ `EngineUptime`
+ `InsertLatency`
+ `InsertThroughput`
+ `NetworkThroughput`
+ `Queries`
+ `UpdateLatency`
+ `UpdateThroughput`