1---2name: azure-database-mysql3description: Expert knowledge for Azure Database for MySQL development including troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when deploying MySQL Flexible Server, configuring HA/networking, tuning performance, securing access, or integrating apps, and other Azure Database for MySQL related development tasks. Not for Azure Database for MariaDB (use azure-database-mariadb), Azure Database for PostgreSQL (use azure-database-postgresql), Azure SQL Database (use azure-sql-database), Azure SQL Managed Instance (use azure-sql-managed-instance).4---5# Azure Database for MySQL Skill67This skill provides expert guidance for Azure Database for MySQL. Covers troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.89## How to Use This Skill1011> **IMPORTANT for Agent**: Use the **Category Index** below to locate relevant sections. For categories with line ranges (e.g., `L35-L120`), use `read_file` with the specified lines. For categories with file links (e.g., `[security.md](security.md)`), use `read_file` on the linked reference file1213This skill requires **network access** to fetch documentation content:14- **Preferred**: Use `mcp_microsoftdocs:microsoft_docs_fetch`. Returns Markdown.15- **Fallback**: Use `WebFetch`. Returns Markdown.1617## Category Index1819| Category | Lines | Description |20|----------|-------|-------------|21| Troubleshooting | L33-L49 | Diagnosing and fixing MySQL Flexible Server issues: connectivity, performance (CPU/memory/queries), capacity, corruption, replication latency, CLI errors, and using logs/self-heal tools. |22| Best Practices | L50-L67 | Best practices for monitoring, performance tuning, troubleshooting, safe operations, BCDR, and end-to-end migration/optimization for Azure Database for MySQL Flexible Server |23| Decision Making | L68-L86 | Planning MySQL on Azure: version lifecycle, capacity and tier selection, HA/BCDR, performance features, and migration/upgrade strategies and tools from on-prem or other MySQL. |24| Architecture & Design Patterns | L87-L94 | Patterns for connecting AKS to MySQL Flexible Server, designing backup/restore, data-in/out replication, high availability (zone-redundant), and read-replica-based scaling. |25| Limits & Quotas | L95-L103 | Limits, quotas, and performance caps for MySQL Flexible Server: max connections/cores/IOPS, storage IOPS behavior, quota increase requests, restart/stop limits, and delete/restore time limits. |26| Security | L104-L130 | Securing Azure Database for MySQL Flexible Server: network isolation (Private Link, firewalls), TLS and cert rotation, encryption, Entra auth, users, and audit logging before/after migration. |27| Configuration | L131-L161 | Configuring MySQL Flexible Server: HA, networking, replication, maintenance windows, monitoring/alerts, logging, server parameters, scaling, and point-in-time restore via portal and CLI. |28| Integrations & Coding Patterns | L162-L172 | Connecting to Azure Database for MySQL Flexible Server via CLI, Java/JDBC, Power BI, managing connection strings with Key Vault, and migrating data from RDS, on-prem, VMs, or Workbench |29| Deployment | L173-L182 | Automating MySQL Flexible Server deployments and changes (Azure Pipelines, GitHub Actions, Automation), handling backups, geo-restore, version upgrades, and scheduled maintenance. |3031### Troubleshooting32| Topic | URL |33|-------|-----|34| Use MySQL Flexible Server error logs for troubleshooting | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-error-logs |35| Resolve database corruption in Azure MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-fix-corrupt-database |36| Use self-heal to automatically repair MySQL flexible server issues | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-self-heal |37| Troubleshoot Azure CLI issues for MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-cli-errors |38| Diagnose and fix MySQL flexible server connection issues | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-common-connection-issues |39| Troubleshoot common migration and usage errors in MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-common-errors |40| Troubleshoot connectivity issues and connection handling in MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-connectivity-issues |41| Troubleshoot high CPU utilization in MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-high-cpu-utilization |42| Troubleshoot low memory issues in MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-low-memory-issues |43| Troubleshoot query performance issues in MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-query-performance-new |44| Diagnose and fix MySQL flexible server capacity errors | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/resolve-capacity-errors |45| Use Query Performance Insight to diagnose Azure MySQL queries | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/tutorial-query-performance-insights |46| Troubleshoot replication latency on MySQL flexible server read replicas | https://learn.microsoft.com/en-us/azure/mysql/how-to-troubleshoot-replication-latency |4748### Best Practices49| Topic | URL |50|-------|-----|51| Implement monitoring best practices for MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concept-monitor-best-practices |52| Apply operational best practices for Azure Database for MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concept-operation-excellence-best-practices |53| Run performance benchmarks on Azure MySQL flexible server effectively | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concept-perf-benchmark-best-practices |54| Optimize performance of Azure MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concept-performance-best-practices |55| Use Azure Monitor and Advisor for MySQL business continuity | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-business-continuity-advisor-monitor |56| Apply troubleshooting best practices for MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-troubleshooting-best-practices |57| Prevent and recover accidental deletion of MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-prevent-recover-accidental-delete |58| Restart Azure MySQL Flexible Server safely via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-restart-server-portal |59| Profile and optimize MySQL flexible server queries using EXPLAIN | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-query-performance |60| Use sys_schema to diagnose performance issues in MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-sys-schema |61| Execute data migration from on-premises MySQL to Azure | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/08-data-migration |62| Manage Azure Database for MySQL after migration | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/10-post-migration-management |63| Optimize Azure Database for MySQL performance after migration | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/11-optimization |64| Design BCDR for Azure Database for MySQL migrations | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/12-business-continuity-and-disaster-recovery |6566### Decision Making67| Topic | URL |68|-------|-----|69| Plan MySQL version lifecycle on Azure Database | https://learn.microsoft.com/en-us/azure/mysql/concepts-version-policy |70| Choose and purchase MySQL Flexible Server reserved capacity | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concept-reserved-pricing |71| Use accelerated logs for high-performance MySQL workloads | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-accelerated-logs |72| Plan business continuity for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-business-continuity |73| High availability FAQ and choices for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-high-availability-faq |74| Select MySQL Flexible Server service tiers and storage | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-service-tiers-storage |75| Perform minimal-downtime MySQL migration to Azure flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-migrate-online |76| Plan and execute Azure MySQL major version upgrades | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-upgrade |77| Plan Azure Database for MySQL major version upgrades | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-upgrade-faq |78| Use mydumper/myloader to migrate large MySQL databases to Azure | https://learn.microsoft.com/en-us/azure/mysql/migrate/concepts-migrate-mydumper-myloader |79| Plan and execute on-premises MySQL migration to Azure Database for MySQL | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/01-mysql-migration-guide-intro |80| Assess on-premises MySQL for migration to Azure | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/03-assessment |81| Plan Azure Database for MySQL migration landing zone | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/04-planning |82| Choose migration methods to Azure Database for MySQL | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/05-migration-methods |83| Establish performance baselines for MySQL migration to Azure | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/07-performance-baselines |8485### Architecture & Design Patterns86| Topic | URL |87|-------|-----|88| Connect Azure Kubernetes Service to MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-aks |89| Design data-in replication into MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-data-in-replication |90| Design data-out replication from MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-data-out-replication |91| Use read replicas to scale MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-read-replicas |9293### Limits & Quotas94| Topic | URL |95|-------|-----|96| Service limitations for Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-limitations |97| Storage IOPS performance characteristics for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-storage-iops |98| Request quota increases for Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-request-quota-increase |99| Restore deleted Azure MySQL flexible servers within retention limits | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-restore-dropped-server |100| Restart, stop, and start MySQL flexible server with stop-duration limits | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/scripts/sample-cli-restart-stop-start |101102### Security103| Topic | URL |104|-------|-----|105| Use Private Link with Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-networking-private-link |106| Configure public network access for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-networking-public |107| Configure private network access for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-networking-vnet |108| Configure Azure MySQL Private Link using Azure CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-networking-private-link-azure-cli |109| Deny public network access for Azure MySQL via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-networking-private-link-deny-public-access |110| Secure Azure MySQL with Private Link using portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-networking-private-link-portal |111| Create and connect to MySQL Flexible Server with private access | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/quickstart-create-connect-server-vnet |112| Configure audit logging for MySQL flexible server via CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/scripts/sample-cli-audit-logs |113| Use customer-managed keys for MySQL Flexible Server encryption | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-customer-managed-key |114| Understand Microsoft Entra authentication for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-entra-authentication |115| Create and manage MySQL Flexible Server users securely | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-how-to-create-users |116| Configure data encryption for MySQL Flexible Server using Azure CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-how-to-data-encryption-cli |117| Configure data encryption for MySQL Flexible Server in Azure portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-how-to-data-encryption-portal |118| Set up Microsoft Entra authentication for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-how-to-entra |119| Manage MySQL Flexible Server firewall rules via Azure CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-how-to-manage-firewall-cli |120| Manage MySQL Flexible Server firewall rules in Azure portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-how-to-manage-firewall-portal |121| Secure Azure Database for MySQL Flexible Server deployments | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-overview |122| TLS requirements and configuration for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-tls |123| Connect securely to MySQL Flexible Server using TLS | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-tls-how-to-connect |124| Handle root certificate rotation for Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-tls-root-certificate-rotation |125| FAQ on root certificate rotation for Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-tls-root-certificate-rotation-faq |126| Configure and analyze audit logs for Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/tutorial-configure-audit |127| Secure Azure Database for MySQL during and after migration | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/13-security |128129### Configuration130| Topic | URL |131|-------|-----|132| Use built-in stored procedures in MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-built-in-store-procedure |133| Configure monitoring and alerts for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-monitor-mysql |134| Monitoring metrics and logs reference for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-monitor-mysql-reference |135| Configure server parameters for Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-server-parameters |136| Set up metric-based alerts for Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-alert-on-metric |137| Enable or disable zone redundant high availability via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-configure-high-availability |138| Configure zone redundant high availability for Azure MySQL via CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-configure-high-availability-cli |139| Configure MySQL flexible server parameters via Azure CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-configure-server-parameters-cli |140| Configure MySQL Flexible Server parameters in Azure portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-configure-server-parameters-portal |141| Configure data-in replication into Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-data-in-replication |142| Configure data-out replication from Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-data-out-replication |143| Configure scheduled maintenance windows for Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-maintenance-portal |144| Configure private VNet connectivity for Azure MySQL via CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-manage-virtual-network-cli |145| Configure private VNet connectivity for Azure MySQL via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-manage-virtual-network-portal |146| Create and manage Azure MySQL read replicas using CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-read-replicas-cli |147| Create and manage Azure MySQL read replicas via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-read-replicas-portal |148| List and download Azure MySQL server logs using CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-server-logs-cli |149| Enable and download Azure MySQL server logs via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-server-logs-portal |150| List and modify MySQL flexible server parameters via CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/scripts/sample-cli-change-server-parameters |151| Create MySQL flexible server with VNet private access via CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/scripts/sample-cli-create-connect-private-access |152| Configure public access and firewall for MySQL flexible server via CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/scripts/sample-cli-create-connect-public-access |153| Monitor and scale MySQL flexible server compute, storage, and IOPS | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/scripts/sample-cli-monitor-and-scale |154| Create and manage MySQL flexible server read replicas via CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/scripts/sample-cli-read-replicas |155| Restore Azure MySQL flexible server to a point in time via CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/scripts/sample-cli-restore-server |156| Configure same-zone high availability for MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/scripts/sample-cli-same-zone-ha |157| Configure slow query logging for MySQL flexible server via CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/scripts/sample-cli-slow-query-logs |158| Configure zone-redundant high availability for MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/scripts/sample-cli-zone-redundant-ha |159160### Integrations & Coding Patterns161| Topic | URL |162|-------|-----|163| Use Azure CLI commands to connect to MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/connect-azure-cli |164| Connect Java applications to MySQL Flexible Server with JDBC | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/connect-java |165| Connect Azure MySQL Flexible Server to Power BI Desktop | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/connect-with-powerbi-desktop |166| Migrate Amazon RDS MySQL to Azure flexible server using data-in replication | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-migrate-rds-mysql-data-in-replication |167| Store MySQL Flexible Server connection strings in Azure Key Vault | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/tutorial-add-mysql-connection-in-key-vault |168| Migrate on-premises or VM MySQL to Azure flexible server using Import CLI | https://learn.microsoft.com/en-us/azure/mysql/migrate/migrate-external-mysql-import-cli |169| Migrate MySQL data to Azure using MySQL Workbench | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/09-data-migration-with-mysql-workbench |170171### Deployment172| Topic | URL |173|-------|-----|174| Configure Azure Pipelines task for Azure MySQL deployments | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/azure-pipelines-deploy-database-task |175| Plan for scheduled maintenance on MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-maintenance |176| Create Azure Automation tasks for MySQL Flexible Server management | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/create-automation-tasks |177| Move Azure MySQL Flexible Server between regions using geo-restore | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-move-regions |178| Restore Azure MySQL Flexible Server from backup using CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-restore-server-cli |179| Restore Azure MySQL Flexible Server from backup via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-restore-server-portal |180| Use GitHub Actions to deploy changes to Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/quickstart-mysql-github-actions |
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