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Analyzing a SQL statement using VTEXPLAIN
Introduction Prerequisites Overview 1. Identify a SQL schema for tables in the statement Example SQL Schema 2. Identify a VSchema for the statement’s source tables The VSchema ... -
Shard Isolation and Atomicity Model
Introduction Cross-shard isolation Note Cross-shard atomicity Method 1: The naive way Method 2: The I-don’t-want-this way (a.k.a. SINGLE) Method 3: The default way Notes: Me... -
Reserved Connections
Feature Description Settings pool and reserved connections System variables and reserved connections Enabling reserved connections Avoiding the use of reserved connections Temp... -
Unmanaged Tablet
Ensure all components are up Start a tablet to correspond to legacy Connect via VTGate Move legacytable to the commerce keyspace Unmanaged Tablet This guide follows on from t... -
Sharding
Overview Supported Operations Sharding scheme Key Ranges and Partitions Shard Names Resharding Additional Tools and Processes Sharding Shard widely, shard often. Sharding... -
Reserved Connections
Feature Description Settings pool and reserved connections System variables and reserved connections Enabling reserved connections Avoiding the use of reserved connections Temp... -
Overview
Demo VSchema DDL Overview One of the goals for Vitess is to provide a unified view for a large number of MySQL clusters distributed across multiple data centers and regions. V... -
Troubleshoot
Pages in this section Find version of Vitess build Troubleshoot Debug common issues with Vitess Pages in this section Elevated query latency on primary Primary starts up re... -
Overview
Transformations Transformations Connectors can be configured with transformations to make lightweight per message modifications. Debezium provides several single message transfo... -
User Guides
VSchema and Query Serving Running in Production Migration SQL Statement Analysis Advanced Configuration Operational Legacy Making Schema Changes User Guides Task-based gu...