Data Transmission Service (DTS) provides the O&M event alerting feature. If the system detects a risk that may cause a DTS instance to fail to run as expected, an O&M event is triggered, and DTS sends a notification to you by using the DTS console, an email, or an internal message. You can view the information included in the O&M event such as the corresponding DTS instance, the time when the O&M event was generated, and suggestions. You can also modify the execution time of the O&M event in the DTS console.
Prerequisites
ApsaraDB Fault or Maintenance Notifications is enabled and a contact is specified in the Message Center console. We recommend that you specify an O&M engineer as the contact.
Usage notes
O&M events whose Event Level is Critical must be given priority attention.
Generally, DTS notifies you of an O&M event at least one day before the O&M event is executed. In some cases, you must perform change operations to handle O&M events. After you receive notifications, log on to the DTS console at the earliest opportunity to view the suggestions and perform the required operations.
We recommend that you configure the Schedule Execution Time parameter. This way, the system executes O&M events during off-peak hours before the specified end time. You also need to perform operations that are mentioned in Suggestions to ensure that your DTS instance can run as expected. Otherwise, the O&M events are executed at the Planned Execution Time by default. This may cause exceptions such as business interruptions. The service level agreement (SLA) of DTS does not guarantee service reliability or performance in such cases.
You can modify the scheduled execution time only for O&M events that are in the Scheduled state. The scheduled time must be 5 minutes later than the current time and earlier than the Latest Available Time.
Procedure
Go to the Event Center page.
Log on to the DTS console.
In the left-side navigation pane, click Event Center.
In the top navigation bar, select a region.
Optional. Click the Scheduled O&M Events tab.
Manage DTS O&M events.
View the details of DTS O&M events
For more information, see the Event types, Event levels, and Event states sections of this topic.
NoteEvent Publish Time: the time when the O&M event was generated.
Planned Execution Time: the default time when DTS executes the O&M event. This parameter takes effect only if the Schedule Execution Time parameter is not configured.
Schedule Execution Time: the time that you schedule for DTS to execute the O&M event.
Modify the scheduled execution time of an O&M event
Find the O&M event that you want to manage and click Modify Scheduled Time in the Actions column.
In the Schedule Execution Time dialog box, configure the Scheduled Date and Schedule Time parameters.
Click OK.
Event types
Event category | Event code | Event type | Event name in CloudMonitor | Description | Suggestion |
Scheduled O&M Events | SystemMaintenance.Shift | SystemMaintenance.Shift |
| If the system detects that a DTS instance may be affected by the underlying hardware or software services, the system migrates the DTS instance to another machine, and notifies you in advance of an O&M event including the information such as the DTS instance, execution time, event status, and suggestions. | Configure the Schedule Execution Time parameter to allow DTS to automatically execute O&M events during off-peak hours. DTS automatically migrates the corresponding DTS instance to another machine at the Schedule Execution Time that you set. This way, your business is not affected. Important If Suggestions are available for an O&M event, we recommend that you handle the O&M event based on the suggestions. |
Event levels
O&M events involve the following severity levels based on the degree of impact on DTS instances:
Critical: Events at this level have a significant impact on DTS instances and must be given priority attention. Otherwise, the corresponding DTS instances may become unavailable.
Warning: Events at this level have a certain impact on DTS instances and require your attention for as long as the impact lasts.
Info: Events at this level have a slight impact on DTS instances, and you can determine whether to handle it based on your business requirements.
Event states
State | Description |
Scheduled | The O&M task is scheduled to be executed and is not started yet. The O&M event enters the Executing state after the execution starts. |
Executing | The O&M task is being executed. |
Executed | The O&M task is executed. |
Canceled | The O&M task is canceled by the system. |
To Dealt | The O&M task is pending because a DTS instance is blocked. In this case, you need to configure a whitelist or update the database password configured for the DTS instance. |
Failed | The O&M task fails. Note The failure of an O&M task does not mean that the corresponding DTS instance fails to run. |
FAQ
Can I manually execute O&M events?
Except for operations that are mentioned in Suggestions, all operations related to O&M events are automatically performed by the system.
Can I cancel an O&M event?
No. You cannot directly cancel an O&M event. However, you can terminate or release the corresponding DTS instance. After you terminate or release the corresponding DTS instance, the O&M event is automatically canceled and enters the Canceled state. For more information, see Terminate a DTS instance or Release DTS instances.
ImportantRead the usage notes before you terminate or release a DTS instance.
How do I specify the scheduled execution time?
The Latest Available Time must be 30 minutes earlier than the Planned Execution Time.
Can I manage DTS O&M events by calling API operations?
No.