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MySQL Replication

MySQL replication ek built-in feature hai jisme ek MySQL server (source / master) ka data…

Overview

MySQL Replication — Quick Facts

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Property: Detail

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Category: Database Administration /…

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Applies To: MySQL 5.6, 5.7, 8.0, 8.4+

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Default Mode: Asynchronous

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Quick Info

📚 | Property | Detail | |---|---| | Category | Database Administration / Replication | |…

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Replication Architecture

💡 How Replication Works `mermaid flowchart LR subgraph Source["Source Server"]…

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Replication Types

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AFTER_SYNC (default 5.7+): Binlog…

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AFTER_COMMIT: Commit ke baad ACK…

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Binary Log Formats

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Non-deterministic functions safe…

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No schema requirement match…

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Per-row conflict detection possible

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Larger binary logs (especially…

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GTID Replication

🔑 Global Transaction Identifier (GTID) GTID har transaction ko globally unique identifier…

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Multi-Source Replication (5.7+)

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Data consolidation — multiple…

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Analytics — different applications…

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Backup — centralized backup from…

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InnoDB Cluster

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Automatic failover — primary fail…

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Transparent routing — MySQL Router…

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Easy management — MySQL Shell se…

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Zero data loss — Paxos consensus…

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Replication Topologies

🚀 Common Topologies | Topology | Description | Use Case | Risk | |---|---|---|---| | Source…

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Configuration

📚 Source Server Setup `ini [mysqld] server_id = 1 log_bin = mysql-bin binlog_format = ROW…

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Monitoring

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Sirf estimate hai (I/O thread…

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Network delay account nahi hota

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Long-running transactions…

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Heartbeat-based monitoring zyada…

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Parallel Replication (MySQL 8.0)

🎯 Multi-Threaded Applier Single SQL thread bottleneck hota hai — 8.0 me multiple worker…

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Replication Filters

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binlog_do_db / binlog_ignore_db —…

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ROW format me actual table name…

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Filters se accidental data loss ho…

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Troubleshooting Common Issues

🔑 | Issue | Symptom | Cause | Solution | |---|---|---|---| | I/O thread stopped |…

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Replication Security

✨ | Practice | How | Why | |---|---|---| | Encrypted replication | CHANGE REPLICATION…

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Interesting Facts

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