Tencent Cloud TDMQ for Apache Pulsar is a high-throughput distributed message system that is widely adopted in numerous enterprise-level applications. High data reliability is one of the key features of TDMQ for Apache Pulsar. This document describes the multiple mechanisms that ensure high data reliability of TDMQ for Apache Pulsar.
Multi-replica Storage Mechanisms
The multi-replica design enhances system availability and reliability. TDMQ for Apache Pulsar uses 3-replica storage by default.
Note:
When you create a topic in TDMQ for Apache Pulsar, you need to configure it as a persistent topic. Otherwise, the relevant message data will not be persistently stored with multiple replicas.
Cross-Region Replication
TDMQ for Apache Pulsar provides global replication capabilities based on GEO Replica, supporting cross-region replication to ensure high reliability in the event of region-level failures. For details, see Cross-Region Replication.