Amazon Document DB Instance (AWS_DOCDB_INSTANCE)
Attributes (parameters)
The following attributes are available for this monitor type:
Name | Description | Unit | Default Performance Key Indicator (KPI) |
---|---|---|---|
Buffer Cache Hit Ratio (BufferCacheHitRatio) | Displays the percentage of requests that are served by the buffer cache. | Percentage | No |
CPU Utilization (CPUUtilization) | Displays the percentage of CPU used by an instance. | Percentage | Yes |
Database Connections (DatabaseConnections) | Displays the number of connections to an instance. | Number (#) | No |
DB Cluster Replica Lag Maximum (DBClusterReplicaLagMaximum) | Displays the maximum amount of lag (in milliseconds) between the primary instance and each Amazon DocumentDB instance in the cluster. | Milliseconds | No |
DB Cluster Replica Lag Minimum (DBClusterReplicaLagMinimum) | Displays the minimum amount of lag (in milliseconds) between the primary instance and each replica instance in the cluster. | Milliseconds | No |
DB Instance Replica Lag (DBInstanceReplicaLag) | Displays the amount of lag (in milliseconds) when replicating updates from the primary instance to a replica instance. | Milliseconds | No |
Disk Queue Depth (DiskQueueDepth) | Displays the number of outstanding read/write requests waiting to access the disk. | Number (#) | No |
Engine Uptime (EngineUptime) | Displays the amount of time that the instance has been running. | Minutes | No |
Freeable Memory (FreeableMemory) | Displays the amount of available random access memory, in bytes. | MB | No |
Free Local Storage (FreeLocalStorage) | Displays the amount of storage available to each instance for temporary tables and logs. This value depends on the instance class. You can increase the amount of free storage space for an instance by choosing a larger instance class for your instance. | MB | No |
Network Receive Throughput (NetworkReceiveThroughput) | Displays the amount of network throughput, in bytes per second, sent to clients by each instance in the cluster. This throughput does not include network traffic between instances in the cluster and the cluster volume. | KB/second | No |
Network Throughput (NetworkThroughput) | Displays the amount of network throughput, in bytes per second, both received from and transmitted to clients by each instance in the Amazon DocumentDB cluster. This throughput does not include network traffic between instances in the cluster and the cluster volume. | KB/second | No |
Network Transmit Throughput (NetworkTransmitThroughput) | Displays the amount of network throughput, in bytes per second, sent to clients by each instance in the cluster. This throughput doesn't include network traffic between instances in the cluster and the cluster volume. | KB/second | No |
Read IOPS (ReadIOPS) | Displays the average number of disk I/O operations per second. Amazon DocumentDB reports read and write IOPS separately, and on one-minute intervals. | Per second | No |
Read Latency (ReadLatency) | Displays the average amount of time taken per disk I/O operation. | Milliseconds | No |
Read Throughput (ReadThroughput) | Displays the average number of bytes read from disk per second. | KB/second | No |
Swap Usage (SwapUsage) | Displays the amount of swap space used on the instance. | MB | No |
Volume Bytes Used (VolumeBytesUsed) | Displays the amount of storage, in bytes, used by your cluster, in bytes. This value affects the cost of the cluster. | MB | No |
Volume Read IOPS (VolumeReadIOPS) | Displays the average number of billed read I/O operations from a cluster volume, reported at 5-minute intervals. Billed read operations are calculated at the cluster volume level, aggregated from all instances in the cluster, and then reported at 5-minute intervals. | Per second | No |
Volume Write IOPS (VolumeWriteIOPS) | Displays the average number of disk I/O operations per second. Read and write IOPS are reported separately and on 1-minute intervals. | Per second | No |
Write IOPS (WriteIOPS) | Displays the average number of disk I/O operations per second. Read and write IOPS are reported separately, on 1-minute intervals. | Per second | No |
Write Latency (WriteLatency) | Displays the average amount of time, in milliseconds, taken per disk I/O operation. | Milliseconds | No |
Write Throughput (WriteThroughput) | Displays the average number of bytes written to disk per second. | KB/second | No |