Configuring Data Multi-Write to Dump Metrics to Self-Built Prometheus Instances

Prerequisites

Your service has been connected for Prometheus monitoring. For details, see Managing Prometheus Instances.

Constraints

• Only the default or common Prometheus instance, and the Prometheus instances for CCE, cloud services, and ECS support data multi-write.
• For Prometheus instances for CCE, the metrics processed using recording rules do not support data multi-write.
• Some default metrics generated by AOM (such as aom_metrics_total, aom_metrics_total_per_hour, ALERTS, and ALERTS_FOR_STATE) do not support data multi-write.
• When the metrics of the default Prometheus instance are dumped using the data multi-write function, the names of some dumped metrics may be inconsistent with those displayed on the AOM page. For example, the names of metrics reported by ICAgent are in lower camel case. These names are converted to the snake case when being displayed on the AOM page. (Example: memUsage is displayed as aom_container_memory_usage.)

Procedure

1. Log in to the AOM 2.0 console.
2. In the navigation pane on the left, choose Prometheus Monitoring > Instances.
3. In the Prometheus instance list, click a Prometheus instance that supports data multi-write. The instance details page is displayed.
4. In the navigation pane on the left, choose Data Write.
5. Configure the intranet.
   1. Select a VPC endpoint service. Select a VPC endpoint service from the drop-down list.

      The selected VPC endpoint service must be in the same VPC as the self-built Prometheus instance. Only VPC endpoint services whose Backend Resource Type is Cloud Server or Elastic Load Balance can be selected.

   2. Add whitelist permissions.

      Click Add Now to add the provided account ID to the VPC endpoint service whitelist.

   3. Create a VPC endpoint.

      Click Create VPC Endpoint.

6. On the VPC endpoint service details page, go to the Connection Management tab page and ensure that the status is Accepted.
7. Set a data write address. Table 1 describes the parameters.

   Table 1 Data write address parameters

   Parameter	Description
   Self-built Prometheus Instance's Remote Write Address	Remote write address of the self-built Prometheus instance. Set this parameter based on site requirements. The format is "{IP address:port number}/{path}". Example: 192.168.0.1:9090/api/v1/write
   Authentication Mode	Authentication mode for accessing a self-built Prometheus instance. Basic: Enter the username and password of the self-built Prometheus instance. Token: A token is required for authentication. None: No authentication is required.

8. Click Save.

   Wait for about 5 minutes. You can check the reported metric data in the self-built Prometheus instance.