Function Overview

Multi-Site High Availability Service (MAS) is part of Huawei's consumer solution for high availability of multi-active applications. It provides E2E service failover and disaster recovery (DR) drill capabilities from the traffic input and data to the application layer, for faster service recovery and better continuity.

This section describes how to manage the edition and features of your instance. 

A namespace is a collection of all resources (traffic input, multi-active areas, data synchronization records, and monitoring information) for a MAS instance. You can create a namespace for each system (such as OA and payment systems) to isolate resources.

An instance is an independent resource space. All operations are performed in an instance. Resources of different instances are isolated from each other. You can use one or more MAS instances based on service requirements.

MAS uses applications to isolate resources of different users in the same instance. Resources created in an instance must be associated with an application.

A MySQL/Oracle/PostgreSQL monitor detects your database status, and automatically triggers traffic switching when the database is abnormal.

A Redis monitor detects your database status, and automatically triggers traffic switching when the database is abnormal.

A MongoDB monitor detects your database status, and automatically triggers traffic switching when the database is abnormal.

An Elasticsearch monitor detects your database status, and automatically triggers traffic switching when the database is abnormal.

API monitors monitor the API gateway of your service, and control the resolution result of the DNS entry based on the availability of API gateway.

You can create data sources and sync links to synchronize data. 

MAS can manage, query, and access cloud resources across accounts with an IAM agency or AK/SK.

Cloud Eye provides you insights in cloud service running and metrics, and allows you to create alarm rules for the monitoring metrics.

After you enable MAS, Cloud Eye automatically associates with MAS monitoring metrics to help you understand the running status of MAS.

You can use Cloud Trace Service (CTS) to record key operation events related to MAS. The events can be used in various scenarios such as security analysis, compliance audit, resource tracing, and problem locating.

After you enable CTS, the system starts to record MAS operations.