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How to optimize mysql

2025-12-23 01:38:27 science and technology

How to optimize MySQL: hot topics and structured guide on the Internet in the past 10 days

With the explosive growth of data volume, MySQL optimization has become the focus of developers. This article will combine the hot topics on the Internet in the past 10 days to provide you with a comprehensive MySQL optimization solution from the perspective of structured data.

1. Recent popular MySQL optimization topics

How to optimize mysql

topicheat indexMain discussion points
Index optimization95%Joint index, covering index, index failure scenario
Query performance88%Slow query analysis, EXPLAIN usage, JOIN optimization
Configuration tuning82%innodb_buffer_pool_size setting, connection pool configuration
Sub-database and sub-table76%Sharding strategy, distributed transaction processing

2. Core optimization plan

1. Best practices for index optimization

Optimization typeSpecific methodsEffect evaluation
Index designFollow the leftmost prefix principleQuery performance improved by 3-5 times
Index typeProper use of Hash/B-Tree indexesPerformance in specific scenarios improved by 10 times
Index maintenanceUse ANALYZE TABLE regularlyImproved statistical information accuracy

2. Query statement optimization

The most popular query optimization techniques in recent developer forums include:

  • Avoid SELECT * and only query necessary fields
  • Use EXISTS instead of IN to handle large data sets
  • Reasonable use of temporary tables to optimize complex queries

3. Configuration parameter tuning

parametersRecommended valueDescription
innodb_buffer_pool_size50-70% of total memoryKey parameters affecting read and write performance
max_connectionsAdjust according to business needsAvoid insufficient connections or waste of resources
query_cache_sizeIt is recommended to disableIt may become a bottleneck in high concurrency scenarios.

3. Advanced optimization techniques

1. Database architecture optimization

According to recent technical discussions, master-slave replication and read-write separation are still effective solutions for handling high concurrency. New trends include:

  • Automatic failover using MySQL Router
  • Consider NewSQL solutions like TiDB
  • Performance optimization features of cloud databases

2. Monitoring and continuous optimization

ToolsFunctionApplicable scenarios
Performance SchemaReal-time monitoringDetailed performance analysis
pt-query-digestSlow query analysisOptimize key identification
Prometheus+GrafanaVisual monitoringLong term trend analysis

4. Future optimization trends

According to recent discussions in the technology community, the following directions deserve attention:

  • AI-driven automatic parameter tuning
  • Serverless database optimization practice
  • Mixed load optimization in HTAP scenario

Through the above structured optimization solutions, combined with the latest technology trends, your MySQL performance will be significantly improved. Remember, optimization is an ongoing process that requires regular evaluation and adjustments.

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