tencent cloud

TDMQ for Apache Pulsar

Release Notes and Announcements
Release Notes
Cluster Version Updates
Product Announcements
Product Introduction
Introduction and Selection of the TDMQ Product Series
What Is TDMQ for Apache Pulsar
Strengths
Scenarios
How It Works
Product Series
Version Support Instructions for Open-Source Apache Pulsar
Comparison with Open-Source Apache Pulsar
High Availability
Quotas and Limits
Basic Concepts
Billing
Billing Overview
Pricing
Billing Examples
Renewal
Viewing Consumption Details
Overdue Payments
Refund
Getting Started
Getting Started Guide
Preparations
Using the SDK to Send and Receive General Messages
Using the SDK to Send and Receive Advanced Feature Messages
User Guide
Usage Process Guide
Configuring the Account Permission
Creating a Cluster
Configuring the Namespace
Configuring the Topic
Connecting to a Cluster
Managing the Cluster
Querying Messages and Traces
Cross-Region Replication
Viewing Monitoring Data and Configuring Alarm Rules
Use Cases
Client Usage
Abnormal Consumer Isolation
Traffic Throttling Mechanisms
Transaction Reconciliation
Message Idempotence
Message Compression
Migration Guide
Single-Write Multiple-Read Cluster Migration Solutions
Hitless Migration from Virtual Cluster to Pro Cluster
SDK Reference
API Overview
SDK Reference
SDK Overview
Recommended SDK Configuration Parameters
TCP Protocol (Apache Pulsar)
Security and Compliance
Permission Management
Deletion Protection
CloudAudit
FAQs
Monitoring
Clients
Agreements
Service Level Agreement
TDMQ Policy
Contact Us
Glossary
DocumentationTDMQ for Apache PulsarProduct IntroductionHigh AvailabilityData-Level High Reliability

Data-Level High Reliability

PDF
Focus Mode
Font Size
Last updated: 2025-12-24 14:51:17
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.
For details about specific replica storage mechanisms, see Message Replicas and Storage Mechanisms.
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.

Previous Topic: Cluster-Level High AvailabilityNext Topic: Quotas and Limits

Help and Support

Was this page helpful?

Help us improve! Rate your documentation experience in 5 mins.

Feedback