Help Center/ Cloud Eye/ Best Practices/ Scenario-specific Cases/ Best Practices of Event Monitoring/ ECS Events
Updated on 2026-09-30 GMT+08:00
View PDF
Share

ECS Events

Elastic Cloud Server (ECS) is a cloud server that provides scalable, on-demand computing resources for secure, flexible, and efficient applications. ECSs are the core of various services. Slight changes in ECS performance, abnormal running, and automatic recovery, may greatly affect cloud services.

Therefore, elastic load balancers are required to distribute access traffic to multiple backend ECSs based on forwarding policies. Traffic distribution expands the external service capability of the application system. This eliminates single point of failures (SPOFs), thereby improving the application system availability. The event monitoring function of Cloud Eye can monitor ECS running exceptions and automatic recovery. You can subscribe to the ECS event notification when changes occur.

Table 1 Key ECS events

Event Name

Event ID

Event Severity

Event Description

Solution

Impact

Redeployment triggered by system faults

startAutoRecovery

Major

ECSs on a faulty host were automatically migrated to another properly-running host. During the migration, the ECSs were restarted.

Wait until the migration is successful and the ECS status is normal.

ECSs are redeployed.

Redeployment triggered by system faults completed

endAutoRecovery

Major

ECSs are recovered after the automatic migration is complete.

Check whether services are restored.

The ECS redeployment is complete.

Procedure

  1. Log in to the Cloud Eye console.
  2. In the navigation pane, choose Event Monitoring. In the upper right corner, click Create Alarm Rule and set parameters as prompted.
    In this example, values of Event Name of two alarm policies are set to Restart triggered due to hardware fault and Restart completed due to hardware failure, respectively. For details about the parameters, see Creating an Alarm Rule and Notification for Event Monitoring.
    Figure 1 Creating an alarm rule
  3. Click Create.

    When abnormal ECS events occur, Cloud Eye notifies you in real time through the SMN service.