Azure Database for MySQL Skill

This 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.

How to Use This Skill

> 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 file

> 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

This skill requires network access to fetch documentation content:

• Preferred: Use mcp_microsoftdocs:microsoft_docs_fetch with query string from=learn-agent-skill. Returns Markdown.
• Fallback: Use fetch_webpage with query string from=learn-agent-skill&accept=text/markdown. Returns Markdown.

Category Index

| Category | Lines | Description | |----------|-------|-------------| | Troubleshooting | L37-L53 | Diagnosing and fixing MySQL Flexible Server issues: connectivity, performance (CPU/memory/queries), capacity, corruption, replication latency, CLI errors, and using logs/self-heal tools. | | 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 | | Decision Making | L72-L88 | Planning lifecycle, HA, and business continuity; choosing tiers, storage, and reservations; and assessing, planning, and executing MySQL migrations and major version upgrades. | | Architecture & Design Patterns | L89-L96 | Patterns for connecting AKS to MySQL Flexible Server, designing backup/restore, data-in/out replication, high availability (zone-redundant), and read-replica-based scaling. | | Limits & Quotas | L97-L105 | 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. | | Security | L106-L130 | Securing Azure Database for MySQL: network isolation (Private Link, firewalls), TLS and cert rotation, audit logging, encryption (CMK), Entra auth, and secure user management. | | Configuration | L131-L161 | Configuring Azure Database for MySQL Flexible Server: parameters, HA, networking, logging, monitoring, alerts, maintenance windows, replication, scaling, backups, and read replicas. | | Integrations & Coding Patterns | L162-L173 | Connecting apps and tools to MySQL Flexible Server (CLI, JDBC, Power BI), managing connection strings, and migrating MySQL data from RDS, on-prem/VM, or large databases using various tools. | | Deployment | L174-L183 | Automating MySQL Flexible Server deployments and changes (Azure Pipelines, GitHub Actions, Automation), handling backups, geo-restore, version upgrades, and scheduled maintenance. |

Troubleshooting

| Topic | URL | |-------|-----| | Use MySQL Flexible Server error logs for troubleshooting | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-error-logs | | Resolve database corruption in Azure MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-fix-corrupt-database | | Use self-heal to automatically repair MySQL flexible server issues | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-self-heal | | Troubleshoot Azure CLI issues for MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-cli-errors | | Diagnose and fix MySQL flexible server connection issues | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-common-connection-issues | | 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 | | 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 | | Troubleshoot high CPU utilization in MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-high-cpu-utilization | | Troubleshoot low memory issues in MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-low-memory-issues | | Troubleshoot query performance issues in MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-query-performance-new | | Diagnose and fix MySQL flexible server capacity errors | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/resolve-capacity-errors | | Use Query Performance Insight to diagnose Azure MySQL queries | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/tutorial-query-performance-insights | | Troubleshoot replication latency on MySQL flexible server read replicas | https://learn.microsoft.com/en-us/azure/mysql/how-to-troubleshoot-replication-latency |

Best Practices

| Topic | URL | |-------|-----| | Implement monitoring best practices for MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concept-monitor-best-practices | | Apply operational best practices for Azure Database for MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concept-operation-excellence-best-practices | | Run performance benchmarks on Azure MySQL flexible server effectively | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concept-perf-benchmark-best-practices | | Optimize performance of Azure MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concept-performance-best-practices | | Use Azure Monitor and Advisor for MySQL business continuity | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-business-continuity-advisor-monitor | | Apply troubleshooting best practices for MySQL flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-troubleshooting-best-practices | | 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 | | Restart Azure MySQL Flexible Server safely via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-restart-server-portal | | Profile and optimize MySQL flexible server queries using EXPLAIN | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-troubleshoot-query-performance | | 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 | | 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 | | 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 | | Optimize Azure Database for MySQL performance after migration | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/11-optimization | | 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 |

Decision Making

| Topic | URL | |-------|-----| | Plan Azure Database for MySQL version lifecycle | https://learn.microsoft.com/en-us/azure/mysql/concepts-version-policy | | Choose and purchase MySQL Flexible Server reserved capacity | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concept-reserved-pricing | | Plan business continuity for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-business-continuity | | High availability FAQ and choices for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-high-availability-faq | | Select MySQL Flexible Server service tiers and storage | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-service-tiers-storage | | Perform minimal-downtime MySQL migration to Azure flexible server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-migrate-online | | Plan and execute Azure MySQL major version upgrades | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-upgrade | | Plan Azure Database for MySQL major version upgrades | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-upgrade-faq | | Plan and execute MySQL migration to Azure Database | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/01-mysql-migration-guide-intro | | Assess on-premises MySQL for migration to Azure | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/03-assessment | | Plan Azure Database for MySQL migration landing zone | https://learn.microsoft.com/en-us/azure/mysql/migrate/mysql-on-premises-azure-db/04-planning | | 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 | | 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 |

Architecture & Design Patterns

| Topic | URL | |-------|-----| | Connect Azure Kubernetes Service to MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-aks | | Design data-in replication into MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-data-in-replication | | Design data-out replication from MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-data-out-replication | | Use read replicas to scale MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-read-replicas |

Limits & Quotas

| Topic | URL | |-------|-----| | Service limitations for Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-limitations | | Storage IOPS performance characteristics for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-storage-iops | | Request quota increases for Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-request-quota-increase | | Restore deleted Azure MySQL flexible servers within retention limits | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-restore-dropped-server | | 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 |

Security

| Topic | URL | |-------|-----| | Use Private Link with Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-networking-private-link | | Configure public network access for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-networking-public | | Configure private network access for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-networking-vnet | | 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 | | 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 | | Secure Azure MySQL with Private Link using portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-networking-private-link-portal | | 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 | | Configure audit logging for MySQL flexible server via CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/scripts/sample-cli-audit-logs | | Configure and analyze audit logs for Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/tutorial-configure-audit | | 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 | | Use customer-managed keys for Azure MySQL encryption | https://learn.microsoft.com/en-us/azure/mysql/security/security-customer-managed-key | | Configure Microsoft Entra authentication for Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/security/security-entra-authentication | | Create and manage MySQL users securely in Azure | https://learn.microsoft.com/en-us/azure/mysql/security/security-how-to-create-users | | Configure data encryption for Azure MySQL using CLI | https://learn.microsoft.com/en-us/azure/mysql/security/security-how-to-data-encryption-cli | | Configure data-at-rest encryption in Azure MySQL portal | https://learn.microsoft.com/en-us/azure/mysql/security/security-how-to-data-encryption-portal | | Configure Microsoft Entra authentication for Azure Database for MySQL | https://learn.microsoft.com/en-us/azure/mysql/security/security-how-to-entra | | Configure Azure MySQL firewall rules with CLI | https://learn.microsoft.com/en-us/azure/mysql/security/security-how-to-manage-firewall-cli | | Manage Azure MySQL firewall rules in portal | https://learn.microsoft.com/en-us/azure/mysql/security/security-how-to-manage-firewall-portal | | Connect securely to Azure MySQL using TLS | https://learn.microsoft.com/en-us/azure/mysql/security/security-tls-how-to-connect | | Manage root certificate rotation for Azure MySQL TLS | https://learn.microsoft.com/en-us/azure/mysql/security/security-tls-root-certificate-rotation | | FAQ for Azure MySQL TLS certificate rotation | https://learn.microsoft.com/en-us/azure/mysql/security/security-tls-root-certificate-rotation-faq |

Configuration

| Topic | URL | |-------|-----| | Use built-in stored procedures in MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-built-in-store-procedure | | Configure monitoring and alerts for MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-monitor-mysql | | Reference monitoring metrics for Azure Database for MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-monitor-mysql-reference | | Configure server parameters for Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-server-parameters | | Set up metric-based alerts for Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-alert-on-metric | | Enable or disable zone redundant high availability via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-configure-high-availability | | 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 | | Configure MySQL flexible server parameters via Azure CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-configure-server-parameters-cli | | Configure MySQL Flexible Server parameters in Azure portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-configure-server-parameters-portal | | Configure data-in replication into Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-data-in-replication | | Configure data-out replication from Azure MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-data-out-replication | | Configure scheduled maintenance windows for Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-maintenance-portal | | 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 | | 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 | | Create and manage Azure MySQL read replicas using CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-read-replicas-cli | | Create and manage Azure MySQL read replicas via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-read-replicas-portal | | List and download Azure MySQL server logs using CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-server-logs-cli | | Enable and download Azure MySQL server logs via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-server-logs-portal | | 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 | | 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 | | 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 | | 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 | | 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 | | 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 | | 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 | | 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 | | 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 |

Integrations & Coding Patterns

| Topic | URL | |-------|-----| | Use Azure CLI commands to connect to MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/connect-azure-cli | | Connect Java applications to MySQL Flexible Server with JDBC | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/connect-java | | Connect Azure MySQL Flexible Server to Power BI Desktop | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/connect-with-powerbi-desktop | | 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 | | 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 | | Migrate large MySQL databases with mydumper/myloader | https://learn.microsoft.com/en-us/azure/mysql/migrate/concepts-migrate-mydumper-myloader | | 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 | | 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 |

Deployment

| Topic | URL | |-------|-----| | Configure Azure Pipelines task for Azure MySQL deployments | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/azure-pipelines-deploy-database-task | | Plan for scheduled maintenance on MySQL Flexible Server | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/concepts-maintenance | | Create Azure Automation tasks for MySQL Flexible Server management | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/create-automation-tasks | | Move Azure MySQL Flexible Server between regions using geo-restore | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-move-regions | | Restore Azure MySQL Flexible Server from backup using CLI | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-restore-server-cli | | Restore Azure MySQL Flexible Server from backup via portal | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/how-to-restore-server-portal | | Use GitHub Actions to deploy changes to Azure MySQL | https://learn.microsoft.com/en-us/azure/mysql/flexible-server/quickstart-mysql-github-actions |