Schedules simulated system events for one or more ECS instances. The simulated system events do not occur in the actual system and the simulation does not affect ECS instances.

Description

You can use the ECS console, ECS APIs, or CloudMonitor to view the scheduled simulated system events.

The following table describes the lifecycle of a simulated system event.

  • Scheduled: The status for the simulated system event is automatically changed to Scheduled after it is scheduled.
  • Executed: The status for the simulated system event is automatically changed to Executed at the scheduled time specified by the NotBefore parameter if no manual intervention is involved.
  • Canceled: The status for the simulated system event is changed to Canceled if you cancel the event by calling CancelSimulatedSystemEvents.
  • Avoided: The status for the simulated system event of maintenance-triggered instance restart can be changed to Avoided if you restart the instance before the scheduled time of the simulated system event. The maintenance-triggered instance restart is indicated by the SystemMaintenance.Reboot value.

Debugging

You can use API Explorer to perform debugging. API Explorer allows you to perform various operations to simplify API usage. For example, you can retrieve APIs, call APIs, and dynamically generate SDK example code.

Request parameters

Name Type Required Example Description
EventType String Yes SystemMaintenance.Reboot

The type of a system event. Valid values:

  • SystemMaintenance.Reboot: The instance restarts due to maintenance.
  • SystemFailure.Reboot: The instance restarts due to a system failure.
  • InstanceFailure.Reboot: The instance restarts due to an instance failure.
InstanceId.N RepeatList Yes i-instance1

The IDs of one or more ECS instances. Valid values of N: 1 to 100. You can specify multiple values in the form of a repeated list.

NotBefore String Yes 2018-12-01T06:32:31Z

The start time of the scheduled event execution period. The time follows the ISO 8601 standard and uses UTC time. The format is yyyy-MM-ddTHH:mm:ssZ.

RegionId String Yes cn-hangzhou

The ID of the region. You can call DescribeRegions to view the latest regions of Alibaba Cloud.

Action String No CreateSimulatedSystemEvents

The operation that you want to perform. Set the value to CreateSimulatedSystemEvents.

Response parameters

Name Type Example Description
EventIdSet e-xhskHun1256xxxx

The list of simulated event IDs.

RequestId String 473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E

The ID of the request.

Examples

Sample requests


https://ecs.aliyuncs.com/?Action=CreateSimulatedSystemEvents
&EventType=SystemMaintenance.Reboot 
&InstanceId.1=i-instance1
&NotBefore=2018-12-01T06:32:31Z 
&RegionId=cn-hangzhou 
&<Common request parameters>

Successful response examples

XML format 

<CreateSimulatedSystemEventsResponse> 
  <EventIdSet> 
    <EventId>e-bp191hqye********34y</EventId> 
    <EventId>e-bp191hqye********34x</EventId> 
  </EventIdSet> 
  <RequestId>E69EF3CC-94CD-42E7-8926-F133B86387C0</RequestId> 
</CreateSimulatedSystemEventsResponse>

JSON format 

{
    "EventIdSet":{
        "EventId":[
            "e-bp191hqye********34y",
            "e-bp191hqye********34x"
        ]
    },
    "RequestId":"679E9056-9B75-4306-8A72-A1DF93EBEF74"
}

Error codes

HTTP status code Error code Error message Description
404 MissingParameter %s The error message returned when a required parameter is not specified.
403 InvalidParameter %s The error message returned when the parameter format is invalid.
403 InvalidNotBefore.Passed %s The error message returned when the specified value of the NotBefore parameter is earlier than the current time.
404 InvalidInstanceId.NotFound %s The error message returned when the specified instance does not exist.
403 SimulatedEventLimitExceeded %s The error message returned when the number of simulated events has reached the upper limit.
403 InstanceIdLimitExceeded %s The error message returned when the specified instance IDs is more than 100.

View error codes