MySQL and MariaDB Alerts shows alerts for one monitored MySQL or MariaDB server. Use it for focused instance-level triage.
Use the MySQL and MariaDB Alerts page when you want alert context for one monitored server. It is the fastest way to focus on a known affected instance without scanning alerts for every engine. This is useful for daily operational review, customer-specific managed service checks, and active incident triage.
Start with alerts that are high severity, new, repeating, or close to the time users reported a problem. Then open the related page for evidence. Activity alerts should be checked with MySQL And MariaDB Activity, storage or latency symptoms with MySQL And MariaDB I/O, transaction symptoms with MySQL And MariaDB InnoDB, and configuration concerns with MySQL And MariaDB Health Checks.
For follow-up, record the alert time, affected database or workload, owner, and action taken. This makes repeating alerts easier to reduce and gives managed service teams a clearer audit trail.
Use Copy, Export, And Import Alert Configuration when MySQL and MariaDB servers should share a standard alert profile. Review custom alert SQL and notification routing before copying between different customers, environments, or engine instances.
This page is best for one server. Use global Alerts when prioritizing alerts across engines, customers, or server groups.
Check whether it maps to a scheduled job, backup, report, import, or accepted workload pattern before changing thresholds.
Usually no. Alerts point to symptoms or thresholds. Use related monitoring pages to confirm the cause.
The following Mini DBA MySQL and MariaDB alert detail pages explain why each alert is useful, when to enable it, how to tune thresholds, and what remediation steps to take when the alert is active. Custom Alert is included because each server Alerts page can also hold user-defined query alerts.
| Alert | Category | Detail |
|---|---|---|
| Custom Alert | Custom | Open detail |
| Connection Usage % | Availability | Open detail |
| Maximum Connections | Availability | Open detail |
| MySQL Restarted | Availability | Open detail |
| No Connection | Availability | Open detail |
| Replication IO Thread Stopped | Availability | Open detail |
| Replication Lag Seconds | Availability | Open detail |
| Replication SQL Thread Stopped | Availability | Open detail |
| Cpu % | CPU | Open detail |
| Free Disk Space | Disk | Open detail |
| Free Disk Space % | Disk | Open detail |
| InnoDB Log Waits | Disk | Open detail |
| Open Files % | Disk | Open detail |
| Aborted Connects Per Second | General | Open detail |
| Buffer Hit Ratio | Memory | Open detail |
| Buffer Pool Size | Memory | Open detail |
| Buffer Pool Use % | Memory | Open detail |
| Table Cache Hit Ratio | Memory | Open detail |
| Alert Send Error | Monitoring | Open detail |
| % Selects Scanning | Query | Open detail |
| Blocked Processes | Query | Open detail |
| Blocking Processes | Query | Open detail |
| Deadlocks | Query | Open detail |
| Disk Temp Tables Per Second | Query | Open detail |
| Lock Threads Waiting | Query | Open detail |
| Lock Timeouts | Query | Open detail |
| Long Running Queries | Query | Open detail |
| Queries Per Second | Query | Open detail |
| Slow Queries Per Second | Query | Open detail |
| Threads Running | Query | Open detail |
| Wait Ms Per Sec | Query | Open detail |