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Databases & messaging · #vitess
Learn how to rebalance Vitess shards online using VSchema and VReplication, with a step‑by‑step example and practical checklist.
Learn how Vitess uses a hash primary vindex to map a sharding key to a single shard, with a worked JSON VSchema example, routing behavior, limits, and common pitfalls to avoid.
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.
Learn how to use vtctl FailoverShard to promote a replica to master in Vitess, ensuring minimal downtime and automatic vtgate routing updates.
Learn how Vitess VReplication lets you reshard MySQL shards without downtime, with a concrete workflow example, monitoring tips, and trade‑offs to consider.
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.
How Vitess vtgate routes queries to the correct MySQL shard, how to use hints when the sharding key is missing, and how to verify routing with /debug/route.
Learn how to avoid performance degradation in Vitess by eliminating scatter queries and implementing Lookup Vindexes for efficient routing.