This topic answers frequently asked questions about EventBridge.
What is EventBridge?
Alibaba Cloud EventBridge is a fully managed, serverless, and event-driven service bus that provides high scalability and reliability. It supports a range of features, such as event query, event tracing, and cross-account event transfer. EventBridge is a core component for building serverless services and applications that use an event-driven architecture.
What are the benefits of EventBridge?
Fully managed service: no deployment required, one-click activation, and no operations or maintenance needed—you can easily access EventBridge with Alibaba Cloud technical support.
Lower cost: You are billed only for API calls, unlike building event-driven service components on other Alibaba Cloud services.
High reliability and elasticity: Built on reliable Alibaba Cloud resources such as Message Queue, ECS, and cloud disks, EventBridge supports triplicate event data backup and high-availability active/standby switchover.
Cloud ecosystem: Integration support for Alibaba Cloud ecosystem products.
EventBridge What is the billing method?
For more information, see Billing overview.
Which regions does EventBridge support?
EventBridge supports the China (Hangzhou), China (Shanghai), China (Beijing), and China (Hong Kong) regions. For more information, see Regions and endpoints.
How does EventBridge ensure data security?
Supports Alibaba Cloud’s primary Resource Access Management (RAM) user management system. The event bus (EventBridge) ensures that unauthorized users cannot access your data.
Events are published to EventBridge over secure HTTPS endpoints.
How do I grant the permissions to use EventBridge?
You can log on to the Resource Access Management (RAM) console with your Alibaba Cloud account to create RAM users and grant permissions to them as needed. For example, you can create RAM User A and RAM User B, and then use RAM to control their permissions for resource management, event publishing, monitoring, and O&M. You can also grant temporary access to external users using Security Token Service (STS). For more information, see Grant permissions to a RAM user.
To grant permissions to another enterprise, use your Alibaba Cloud account (Enterprise A) to create a RAM role. After you grant permissions to the role, you can assign it to the other enterprise (Enterprise B). This allows Enterprise B's Alibaba Cloud account or its RAM users to access your Alibaba Cloud resources. For more information, see Grant permissions across Alibaba Cloud accounts.
Why do events fail to be published?
Events may fail to be published for the following reasons:
Access point configuration error.
Copy the endpoint from the EventBridge console. Do not add a protocol header such as HTTP to the endpoint.
The network is incorrectly configured.
Select the public endpoint or VPC endpoint based on the producer's network environment.
The specified resource does not exist.
Verify that the event bus exists.
Insufficient permissions.
Verify that the AccessKey ID and AccessKey Secret are correct and that the required RAM permissions are configured. For more information about RAM permissions, see Grant permissions to a RAM user.
The event content exceeds the limit.
For more information about limits, see Limits.
For more information about calculating event size, see Calculate the size of events published by PutEvents.
Why do events fail to be routed?
Events may fail to be routed for the following reasons:
The operation is rate-limited by the destination endpoint.
The event target does not accept transformed event content.
You can query the event trace to troubleshoot the failure. For more information about how to query event traces, see Event query.
If you configure an HTTP endpoint as the event target, you must use a public endpoint.
EventBridge Which Alibaba Cloud services can be used as event sources for EventBridge? What are the event formats for these Alibaba Cloud services?
For a list of Alibaba Cloud services that can be used as event sources for EventBridge, see Event source overview.
For more information about the event formats of Alibaba Cloud services that act as event sources for EventBridge, see Enterprise Distributed Application Service events.
How to configure event patterns to filter events?
For more information about how to configure event patterns, see Manage event rules.