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1. shardedtopology.org shardedtopology.org Public

   A production field guide for running Vitess on sharded MySQL: topology design, VSchema & routing, online DDL coordination, and observability.

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2. shard-key-analyzer shard-key-analyzer Public

   Simulate a Vitess vindex over a shard layout and see the skew, hot shards and scatter-gather risk before you commit to a shard key. Faithful hash/xxhash/numeric/binary/reverse_bits implementations,…

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3. vschema-lint vschema-lint Public

   A linter for Vitess VSchema JSON. Runs 30 rules over your keyspaces, vindexes, sequences and routing rules — optionally cross-checked against your CREATE TABLE DDL — and reports each problem with a…

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4. reshard-planner reshard-planner Public

   Plan and sequence Vitess resharding offline. Key-range algebra, minimal Reshard workflow computation from source/target layouts, VSchema and topology preflight, VReplication duration estimates, and…

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5. online-ddl-orchestrator online-ddl-orchestrator Public

   Coordinate Vitess Online DDL across every shard of a keyspace. Submits with --postpone-completion, holds a global cutover barrier until all shards report ready and none is lagging, then completes t…

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6. vitess-topo-monitor vitess-topo-monitor Public

   Monitors Vitess shard health and alerts when live topology drifts from a declared desired topology. Validates that shard key ranges tile the key space, tracks replication lag, throttler state, scat…

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