Online Resharding in Vitess Using vreplication: Step‑by‑Step Guide
Learn how to reshard a Vitess keyspace online with vreplication: create a workflow, monitor lag, cut over, and avoid common pitfalls.
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Learn how to reshard a Vitess keyspace online with vreplication: create a workflow, monitor lag, cut over, and avoid common pitfalls.
Moving a live MySQL shard in Vitess requires sequencing VReplication catch-up, VSchema routing, and traffic cut-over with explicit verification gates. This guide covers prerequisites, procedure, checks, and recovery for zero-downtime resharding.
MoveTables resharding keeps your source shards authoritative until the final write switch. Here is how the VReplication workflow, vindex placement, and cutover freeze interact—and how to rehearse it safely.
Decide when to split a Vitess shard and run the online reshard workflow safely.
Learn how Vitess VReplication streams MySQL binlogs to keep source and target tables in sync, enabling online resharding without stopping traffic.
Learn how Vitess VReplication enables live resharding of MySQL shards with minimal disruption, including a step‑by‑step example, monitoring tips, and trade‑offs.
Vitess online resharding changes sharding via VSchema and VReplication, using SplitClone for initial copy and controlled cut-over to new shards without downtime.