Amazon Database Migration Service monitoring
Dynatrace ingests metrics for multiple preselected namespaces, including Amazon Database Migration Service. You can view metrics for each service instance, split metrics into multiple dimensions, and create custom charts that you can pin to your dashboards.
Prerequisites
To enable monitoring for this service, you need
- ActiveGate version 1.197+, as follows:
- For Dynatrace SaaS deployments, you need an Environment ActiveGate or a Multi-environment ActiveGate.
- For Dynatrace Managed deployments, you can use any kind of ActiveGate.
Note: For role-based access (whether in a SaaS or Managed deployment), you need an Environment ActiveGate installed on an Amazon EC2 host.
- Dynatrace version 1.200+
- An updated AWS monitoring policy to include the additional AWS services.
To update the AWS IAM policy, use the JSON below, containing the monitoring policy (permissions) for all supporting services.
If you don't want to add permissions to all services, and just select permissions for certain services, consult the table below. The table contains a set of permissions that are required for all services (All monitored Amazon services) and, for each supporting service, a list of optional permissions specific to that service.
Example of JSON policy for one single service.
In this example, from the complete list of permissions you need to select
"apigateway:GET"for Amazon API Gateway"cloudwatch:GetMetricData","cloudwatch:GetMetricStatistics","cloudwatch:ListMetrics","sts:GetCallerIdentity","tag:GetResources","tag:GetTagKeys", and"ec2:DescribeAvailabilityZones"for All monitored Amazon services.
Enable monitoring
To enable monitoring for this service, you first need to integrate Dynatrace with Amazon Web Services:
Add the service to monitoring
In order to view the service metrics, you must add the service to monitoring in your Dynatrace environment.
All cloud services consume Davis data units (DDUs). The amount of DDU consumption per service instance depends on the number of monitored metrics and their dimensions (each metric dimension results in the ingestion of 1 data point; 1 data point consumes 0.001 DDUs).
Monitor resources based on tags
You can choose to monitor resources based on existing AWS tags, as Dynatrace automatically imports them from service instances. Nevertheless, the transition from AWS to Dynatrace tagging isn't supported for all AWS services. Expand the table below to see which cloud services are filtered by tagging.
To monitor resources based on tags
- In the Dynatrace menu, go to Settings > Cloud and virtualization > AWS and select Edit for the desired AWS instance.
- For Resources to be monitored, select Monitor resources selected by tags.
- Enter the Key and Value.
- Select Save.
Configure service metrics
Once you add a service, Dynatrace starts automatically collecting a suite of metrics for this particular service. These are recommended metrics.
Recommended metrics:
- Are enabled by default
- Can't be disabled
- Can have recommended dimensions (enabled by default, can't be disabled)
- Can have optional dimensions (disabled by default, can be enabled)
Apart from the recommended metrics, most services have the possibility of enabling optional metrics.
Optional metrics:
- Can be added and configured manually
View service metrics
You can view the service metrics in your Dynatrace environment either on the custom device overview page or on your Dashboards page.
View metrics on the custom device overview page
To access the custom device overview page
- In the Dynatrace menu, go to Technologies and processes.
- Filter by service name and select the relevant custom device group.
- Once you select the custom device group, you're on the custom device group overview page.
- The custom device group overview page lists all instances (custom devices) belonging to the group. Select an instance to view the custom device overview page.
View metrics on your dashboard
After you add the service to monitoring, a preset dashboard containing all recommended metrics is automatically listed on your Dashboards page. To look for specific dashboards, filter by Preset and then by Name.
Note: For existing monitored services, you might need to resave your credentials for the preset dashboard to appear on the Dashboards page. To resave your credentials, go to Settings > Cloud and virtualization > AWS, select the desired AWS instance, and then select Save.
You can't make changes on a preset dashboard directly, but you can clone and edit it. To clone a dashboard, open the browse menu (…) and select Clone.
To remove a dashboard from the dashboards page, you can hide it. To hide a dashboard, open the browse menu (…) and select Hide.
Note: Hiding a dashboard doesn't affect other users.
To check the availability of preset dashboards for each AWS service, see the list below.
Available metrics
| Name | Description | Unit | Statistics | Dimensions | Recommended |
|---|---|---|---|---|---|
| CDCChangesDiskSource | Amount of rows accumulating on disk and waiting to be committed from the source | Count | Sum | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | |
| CDCChangesDiskTarget | Amount of rows accumulating on disk and waiting to be committed to the target | Count | Sum | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | |
| CDCChangesMemorySource | Amount of rows accumulating in memory and waiting to be committed from the source | Count | Sum | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | |
| CDCChangesMemoryTarget | Amount of rows accumulating in memory and waiting to be committed to the target | Count | Sum | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | |
| CDCIncomingChanges | The total number of change events at a point in time that are waiting to be applied to the target | Count | Sum | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| CDCLatencySource | The gap, in seconds, between the last event captured from the source endpoint and the current system timestamp of the AWS DMS instance. CDCLatencySource represents the latency between source and replication instance. | Seconds | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| CDCLatencyTarget | The gap, in seconds, between the first event timestamp waiting to commit on the target and the current timestamp of the AWS DMS instance. CDCLatencyTarget represents the latency between replication instance and target. | Seconds | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| CDCThroughputBandwidthSource | Incoming data received for the source in KB per second | Kilobytes/Second | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| CDCThroughputBandwidthTarget | Outgoing data transmitted for the target in KB per second | Kilobytes/Second | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| CDCThroughputRowsSource | Incoming task changes from the source in rows per second | Count/Second | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| CDCThroughputRowsTarget | Outgoing task changes for the target in rows per second | Count/Second | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| CPUAllocated | The percentage of CPU maximally allocated for the task (0 means no limit) | Percent | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | |
| CPUUtilization | The amount of CPU used | Percent | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| CPUUtilization | Percent | Multi | ReplicationInstanceIdentifier | ✔️ | |
| CPUUtilization | Percent | Multi | Region, ReplicationInstanceExternalResourceId | ✔️ | |
| CPUUtilization | Percent | Multi | Region | ✔️ | |
| CPUUtilization | Percent | Multi | Region, InstanceClass | ||
| DiskQueueDepth | The number of outstanding I/Os (read/write requests) waiting to access the disk | Count | Multi | Region, ReplicationInstanceExternalResourceId | |
| DiskQueueDepth | Count | Multi | Region | ||
| DiskQueueDepth | Count | Multi | Region, InstanceClass | ||
| DiskQueueDepth | Count | Multi | ReplicationInstanceIdentifier | ||
| FreeStorageSpace | The amount of available storage space | Bytes | Multi | ReplicationInstanceIdentifier | ✔️ |
| FreeStorageSpace | Bytes | Multi | Region, ReplicationInstanceExternalResourceId | ||
| FreeStorageSpace | Bytes | Multi | Region | ||
| FreeStorageSpace | Bytes | Multi | Region, InstanceClass | ||
| FreeableMemory | The amount of available RAM | Bytes | Multi | ReplicationInstanceIdentifier | ✔️ |
| FreeableMemory | Bytes | Multi | Region, ReplicationInstanceExternalResourceId | ||
| FreeableMemory | Bytes | Multi | Region | ||
| FreeableMemory | Bytes | Multi | Region, InstanceClass | ||
| FullLoadThroughputBandwidthSource | Incoming data received from a full load from the source in kilobytes (KB) per second | Kilobytes/Second | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| FullLoadThroughputBandwidthTarget | Outgoing data transmitted from a full load for the target in kilobytes (KB) per second | Kilobytes/Second | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| FullLoadThroughputRowsSource | Incoming changes from a full load from the source in rows per second | Count/Second | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| FullLoadThroughputRowsTarget | Outgoing changes from a full load for the target in rows per second | Count/Second | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| MemoryAllocated | The maximum allocation of memory for the task (0 means no limits) | Megabytes | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | |
| MemoryUsage | The resident set size (RSS) occupied by a task. It indicates the portion of memory occupied by a task held in main memory (RAM). | Megabytes | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| NetworkReceiveThroughput | The incoming (receive) network traffic on the replication instance, including both customer database traffic and AWS DMS traffic used for monitoring and replication | Bytes/Second | Multi | ReplicationInstanceIdentifier | ✔️ |
| NetworkReceiveThroughput | Bytes/Second | Multi | Region, ReplicationInstanceExternalResourceId | ||
| NetworkReceiveThroughput | Bytes/Second | Multi | Region | ||
| NetworkReceiveThroughput | Bytes/Second | Multi | Region, InstanceClass | ||
| NetworkTransmitThroughput | The outgoing (transmit) network traffic on the replication instance, including both customer database traffic and AWS DMS traffic used for monitoring and replication | Bytes/Second | Multi | ReplicationInstanceIdentifier | ✔️ |
| NetworkTransmitThroughput | Bytes/Second | Multi | Region, ReplicationInstanceExternalResourceId | ||
| NetworkTransmitThroughput | Bytes/Second | Multi | Region | ||
| NetworkTransmitThroughput | Bytes/Second | Multi | Region, InstanceClass | ||
| ReadIOPS | The average number of disk read I/O operations per second | Count/Second | Multi | ReplicationInstanceIdentifier | ✔️ |
| ReadIOPS | Count/Second | Multi | Region, ReplicationInstanceExternalResourceId | ||
| ReadIOPS | Count/Second | Multi | Region | ||
| ReadIOPS | Count/Second | Multi | Region, InstanceClass | ||
| ReadLatency | The average amount of time taken per disk I/O (input) operation | Seconds | Multi | ReplicationInstanceIdentifier | ✔️ |
| ReadLatency | Seconds | Multi | Region, ReplicationInstanceExternalResourceId | ||
| ReadLatency | Seconds | Multi | Region | ||
| ReadLatency | Seconds | Multi | Region, InstanceClass | ||
| ReadThroughput | The average number of bytes read from disk per second | Bytes/Second | Multi | ReplicationInstanceIdentifier | ✔️ |
| ReadThroughput | Bytes/Second | Multi | Region, ReplicationInstanceExternalResourceId | ||
| ReadThroughput | Bytes/Second | Multi | Region | ||
| ReadThroughput | Bytes/Second | Multi | Region, InstanceClass | ||
| RecoveryCount | Count | Sum | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ | |
| RunCounter | Count | Sum | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ | |
| SwapUsage | The amount of swap space used on the replication instance | Bytes | Multi | ReplicationInstanceIdentifier | ✔️ |
| SwapUsage | Bytes | Multi | Region, ReplicationInstanceExternalResourceId | ||
| SwapUsage | Bytes | Multi | Region | ||
| SwapUsage | Bytes | Multi | Region, InstanceClass | ||
| ValidationAttemptedRecordCount | Number of rows that validation was attempted, per minute | Count | Sum | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| ValidationBulkQuerySourceLatency | AWS DMS can do data validation in bulk, especially in certain scenarios during a full-load or ongoing replication when there are many changes. This metric indicates the latency required to read a bulk set of data from the source endpoint. | Milliseconds | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| ValidationBulkQueryTargetLatency | AWS DMS can do data validation in bulk, especially in certain scenarios during a full-load or ongoing replication when there are many changes. This metric indicates the latency required to read a bulk set of data on the target endpoint. | Milliseconds | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| ValidationFailedOverallCount | Number of rows where validation failed | Count | Sum | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| ValidationItemQuerySourceLatency | During ongoing replication, data validation can identify ongoing changes and validate those changes. This metric indicates the latency in reading those changes from the source. | Milliseconds | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | |
| ValidationItemQueryTargetLatency | During ongoing replication, data validation can identify ongoing changes and validate the changes row by row. This metric gives us the latency in reading those changes from the target. | Milliseconds | Multi | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | |
| ValidationPendingOverallCount | Number of rows where the validation is still pending | Count | Sum | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| ValidationSucceededRecordCount | Number of rows that AWS DMS validated, per minute | Count | Sum | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| ValidationSuspendedOverallCount | Number of rows where validation was suspended | Count | Sum | ReplicationInstanceIdentifier, ReplicationTaskIdentifier | ✔️ |
| WriteIOPS | The average number of disk write I/O operations per second | Count/Second | Multi | ReplicationInstanceIdentifier | ✔️ |
| WriteIOPS | Count/Second | Multi | Region, ReplicationInstanceExternalResourceId | ||
| WriteIOPS | Count/Second | Multi | Region | ||
| WriteIOPS | Count/Second | Multi | Region, InstanceClass | ||
| WriteLatency | The average amount of time taken per disk I/O (output) operation | Seconds | Multi | ReplicationInstanceIdentifier | ✔️ |
| WriteLatency | Seconds | Multi | Region, ReplicationInstanceExternalResourceId | ||
| WriteLatency | Seconds | Multi | Region | ||
| WriteLatency | Seconds | Multi | Region, InstanceClass | ||
| WriteThroughput | The average number of bytes written to disk per second | Bytes/Second | Multi | ReplicationInstanceIdentifier | ✔️ |
| WriteThroughput | Bytes/Second | Multi | Region, ReplicationInstanceExternalResourceId | ||
| WriteThroughput | Bytes/Second | Multi | Region | ||
| WriteThroughput | Bytes/Second | Multi | Region, InstanceClass |
Limitations
To collect metrics about changes captured by the migration task (CDC metrics) on MySQL, the binary logging and automatic backup settings should be enabled.