Resilience
DMS for RocketMQ provides a three-level reliability architecture and uses cross-AZ DR, intra-AZ instance DR, and instance data replication to ensure service durability and reliability.
Reliability Solution |
Description |
---|---|
Cross-AZ DR |
DMS for RocketMQ provides cross-AZ instances that support cross-AZ DR. When an AZ is abnormal, the instances can still provide services. |
Intra-AZ instance DR |
Each master has two slaves. To ensure strong data consistency, the slaves synchronize data from the master. When a node fault occurs, the master/slave roles are automatically switched by using the Raft protocol. |
Data DR |
Data DR is implemented through data replication. |
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