Dual-stream disaster recovery is a fallback solution to ensure streaming continuity and stability. This topic introduces the feature and shows how to use it.
What is dual-stream disaster recovery?
Dual-stream disaster recovery allows you to ingest two streams with identical content to the same URL. The system monitors the availability and quality of both streams and outputs the better one. This ensures your live streaming remains stable and uninterrupted, delivering a seamless viewing experience to your audience. This feature is ideal for live streaming of important events and traffic-demanding scenarios.
Currently, dual-stream disaster recovery is free of charge.
Capabilities
Distributed stream ingest: We recommend that you use different Internet service providers (ISPs) to ensure that multiple streams with the same name are ingested to different L1 points of presence (POPs). This improves the effectiveness and resilience of the disaster recovery system.
Multi-stream merging: The central node manages and merges multiple incoming streams with the same name. It supports flexible configurations to adapt to different disaster recovery requirements and policies.
Implicit stream management: The standby stream is invisible when you use the query, callback, recording, and transcoding features and does not interfere with the existing business logic.
Automatic switchover: The system monitors the availability and quality of the two streams in real time. If a stream is abnormal, the system automatically switches to the other one.
Manual switchover: You can manually switch to a standby stream via the console or API. This does not affect the system's capability to perform automatic switchover when necessary.
The following diagram illustrates how the two streams are ingested and distributed:
Enable dual-stream disaster recovery
Log on to the ApsaraVideo Live console.
In the left-side navigation pane, click Domain Names. The Domain Management page appears.
Find the streaming domain that you want to manage and click Domain Settings in the Actions column.
In the left-side navigation tree, choose Streaming Management > Dual-stream Disaster Recovery.
Click Enable to enable the feature.
Manage switchover
After the feature is enabled, you can manage automatic and manual switchover.
Automatic switchover
On the Dual-stream Disaster Recovery page, click the switch in the Automatic Switchover column to enable or disable it.
Manual switchover
On the Dual-stream Disaster Recovery page, configure the start time, enter a stream name, and click Search.
Click Ingest Records to open the Ingest Records and Switchover Records panel.
Click Switch to Active Stream.
You can also manage switchover on the Stream Management page. For details, see Manage live streams.
Monitor active and standby streams
ApsaraVideo Live provides visualized stream monitoring data in the console.
- Log on to the ApsaraVideo Live console.
In the left-side navigation pane, choose .
On the Stream-based Data tab, enter a stream name for an exact match.
View stream statistics on the dashboard, such as data on ingestion, playback, stream quality, and callback records.
References
To use dual-stream disaster recovery through APIs, see Dual-stream disaster recovery.