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 planning MySQL Flexible Server HA/BCDR, CI/CD deployments, VNet/Private Link, read replicas, or AKS connectivity, 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 file1213> **IMPORTANT for Agent**: If `metadata.generated_at` is more than 3 months old, suggest the user pull the latest version from the repository. If `mcp_microsoftdocs` tools are not available, suggest the user install it: [Installation Guide](https://github.com/MicrosoftDocs/mcp/blob/main/README.md)1415This skill requires **network access** to fetch documentation content:16- **Preferred**: Use `mcp_microsoftdocs:microsoft_docs_fetch` with query string `from=learn-agent-skill`. Returns Markdown.17- **Fallback**: Use `fetch_webpage` with query string `from=learn-agent-skill&accept=text/markdown`. Returns Markdown.1819## Category Index2021| Category | Lines | Description |22|----------|-------|-------------|23| Troubleshooting | L37-L53 | Diagnosing and fixing MySQL Flexible Server issues: connectivity, performance (CPU/memory/queries), errors, corruption, capacity, replication lag, CLI problems, and using logs/self-heal tools |24| Best Practices | L54-L71 | Best practices for monitoring, performance tuning, troubleshooting, safe operations, BCDR, and end-to-end migration/optimization for Azure Database for MySQL Flexible Server |25| Decision Making | L72-L89 | Guidance on MySQL Flexible Server planning: version lifecycle, HA/BCDR, performance features, sizing and pricing, and assessing, choosing methods for, and executing migrations to Azure. |26| Architecture & Design Patterns | L90-L97 | Patterns for connecting AKS to MySQL Flexible Server, designing backup/restore, data-in/out replication, high availability (zone-redundant), and read-replica-based scaling. |27| Limits & Quotas | L98-L106 | Limits, quotas, and performance caps for MySQL Flexible Server: compute/storage/IOPS limits, quota increase process, restore retention limits, and stop/start duration constraints. |28| Security | L107-L133 | 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. |29| Configuration | L134-L164 | Configuring MySQL Flexible Server: parameters, HA, networking (VNet/firewall), replication, logs/slow queries, monitoring/metrics, alerts, scaling, maintenance, backups, and read replicas. |30| Integrations & Coding Patterns | L165-L175 | 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 |31| Deployment | L176-L186 | Automating MySQL Flexible Server deployments and maintenance: CI/CD with Azure Pipelines/GitHub Actions, backups/geo-restore, major version upgrades, and scheduled/automated management tasks. |3233### Troubleshooting34| Topic | URL |35|-------|-----|36| Use MySQL Flexible Server error logs for troubleshooting | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-error-logs |37| Resolve database corruption in Azure MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-fix-corrupt-database |38| Use self-heal to automatically repair MySQL flexible server issues | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-self-heal |39| Troubleshoot Azure CLI issues for MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-cli-errors |40| Diagnose and fix MySQL flexible server connection issues | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-common-connection-issues |41| 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 |42| 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 |43| Troubleshoot high CPU utilization in MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-high-cpu-utilization |44| Troubleshoot low memory issues in MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-low-memory-issues |45| Troubleshoot query performance issues in MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-query-performance-new |46| Resolve capacity errors when deploying or scaling MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/resolve-capacity-errors |47| Use Query Performance Insight to diagnose Azure MySQL queries | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/tutorial-query-performance-insights |48| Troubleshoot replication latency on MySQL flexible server read replicas | https://learn.microsoft.com/en-us/azure/mysql/how-to-troubleshoot-replication-latency |4950### Best Practices51| Topic | URL |52|-------|-----|53| Implement monitoring best practices for MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concept-monitor-best-practices |54| Apply operational best practices for Azure Database for MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concept-operation-excellence-best-practices |55| Run performance benchmarks on Azure MySQL flexible server effectively | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concept-perf-benchmark-best-practices |56| Optimize performance of Azure MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concept-performance-best-practices |57| Use Azure Monitor and Advisor for MySQL business continuity | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-business-continuity-advisor-monitor |58| Apply troubleshooting best practices for MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-troubleshooting-best-practices |59| 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 |60| Restart Azure MySQL Flexible Server safely via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-restart-server-portal |61| Profile and optimize MySQL flexible server queries using EXPLAIN | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-query-performance |62| 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 |63| 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 |64| 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 |65| Optimize Azure Database for MySQL performance after migration | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/11-optimization |66| 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 |6768### Decision Making69| Topic | URL |70|-------|-----|71| Plan for Azure Database for MySQL version lifecycle | https://learn.microsoft.com/en-us/azure/mysql/concepts-version-policy |72| Choose and purchase MySQL Flexible Server reserved capacity | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concept-reserved-pricing |73| Use accelerated logs for high-performance MySQL workloads | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-accelerated-logs |74| Plan business continuity for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-business-continuity |75| High availability FAQ and choices for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-high-availability-faq |76| Select MySQL Flexible Server service tiers and storage | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-service-tiers-storage |77| Perform minimal-downtime MySQL migration to Azure flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-migrate-online |78| Decide and plan major version upgrades for Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-upgrade-faq |79| Use mydumper/myloader to migrate large MySQL databases to Azure | https://learn.microsoft.com/en-us/azure/mysql/migrate/concepts-migrate-mydumper-myloader |80| 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 |81| Assess on-premises MySQL for migration to Azure | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/03-assessment |82| Plan Azure Database for MySQL migration landing zone | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/04-planning |83| 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 |84| 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 |8586### Architecture & Design Patterns87| Topic | URL |88|-------|-----|89| Connect Azure Kubernetes Service to MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-aks |90| Design data-in replication into MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-data-in-replication |91| Design data-out replication from MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-data-out-replication |92| Use read replicas to scale MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-read-replicas |9394### Limits & Quotas95| Topic | URL |96|-------|-----|97| Service limitations for Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-limitations |98| Storage IOPS performance characteristics for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-storage-iops |99| Request quota increases for Azure MySQL flexible server resources | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-request-quota-increase |100| Restore deleted Azure MySQL flexible servers within retention limits | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-restore-dropped-server |101| 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 |102103### Security104| Topic | URL |105|-------|-----|106| Use Private Link with Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-networking-private-link |107| Configure public network access for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-networking-public |108| Configure private network access for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-networking-vnet |109| 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 |110| 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 |111| Secure Azure MySQL with Private Link using portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-networking-private-link-portal |112| 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 |113| Configure audit logging for MySQL flexible server via CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/scripts/sample-cli-audit-logs |114| Use customer-managed keys for MySQL Flexible Server encryption | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-customer-managed-key |115| Understand Microsoft Entra authentication for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-entra-authentication |116| Create and manage MySQL Flexible Server users securely | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-how-to-create-users |117| 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 |118| 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 |119| Set up Microsoft Entra authentication for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-how-to-entra |120| 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 |121| 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 |122| Secure Azure Database for MySQL Flexible Server deployments | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-overview |123| TLS requirements and configuration for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-tls |124| Connect securely to MySQL Flexible Server using TLS | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-tls-how-to-connect |125| Handle root certificate rotation for Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-tls-root-certificate-rotation |126| FAQ on root certificate rotation for Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/security-tls-root-certificate-rotation-faq |127| Configure and analyze audit logs for Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/tutorial-configure-audit |128| 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 |129130### Configuration131| Topic | URL |132|-------|-----|133| Use built-in stored procedures in MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-built-in-store-procedure |134| Configure monitoring and alerts for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-monitor-mysql |135| Monitoring metrics and logs reference for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-monitor-mysql-reference |136| Configure MySQL Flexible Server parameters effectively | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-server-parameters |137| Set up metric-based alerts for Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-alert-on-metric |138| Enable or disable zone redundant high availability via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-configure-high-availability |139| 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 |140| Configure MySQL flexible server parameters via Azure CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-configure-server-parameters-cli |141| Configure MySQL Flexible Server parameters in Azure portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-configure-server-parameters-portal |142| Configure data-in replication into Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-data-in-replication |143| Configure data-out replication from Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-data-out-replication |144| Configure scheduled maintenance windows for Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-maintenance-portal |145| 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 |146| 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 |147| Create and manage Azure MySQL read replicas using CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-read-replicas-cli |148| Create and manage Azure MySQL read replicas via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-read-replicas-portal |149| List and download Azure MySQL server logs using CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-server-logs-cli |150| Enable and download Azure MySQL server logs via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-server-logs-portal |151| 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 |152| 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 |153| 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 |154| 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 |155| 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 |156| 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 |157| 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 |158| 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 |159| 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 |160161### Integrations & Coding Patterns162| Topic | URL |163|-------|-----|164| Use Azure CLI commands to connect to MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/connect-azure-cli |165| Connect Java applications to MySQL Flexible Server with JDBC | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/connect-java |166| Connect Azure MySQL Flexible Server to Power BI Desktop | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/connect-with-powerbi-desktop |167| 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 |168| 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 |169| 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 |170| 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 |171172### Deployment173| Topic | URL |174|-------|-----|175| Configure Azure Pipelines task for Azure MySQL deployments | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/azure-pipelines-deploy-database-task |176| Plan for scheduled maintenance on MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-maintenance |177| Create Azure Automation tasks for MySQL Flexible Server management | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/create-automation-tasks |178| Move Azure MySQL Flexible Server between regions using geo-restore | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-move-regions |179| Restore Azure MySQL Flexible Server from backup using CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-restore-server-cli |180| Restore Azure MySQL Flexible Server from backup via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-restore-server-portal |181| Perform major version upgrades for Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-upgrade |182| Use GitHub Actions to deploy changes to Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/quickstart-mysql-github-actions |
luokai0