Why 80% of SQL incidents are avoidable

The finding

Out of the 150+ MariaDB / MySQL incidents we handled in 2025, 80% could have been avoided with proactive monitoring.

The 3 main causes

1. Missing indexes

The classic. A query that runs in 200ms in dev, but takes 45 seconds in prod with 10M rows.

-- Before: full table scan
SELECT * FROM orders WHERE customer_id = 12345;

-- After: index added
ALTER TABLE orders ADD INDEX idx_customer_id (customer_id);

PmaControl detects slow queries and suggests missing indexes through the Marina+ agent.

2. Untested backups

72% of our clients had backups... but had never tested a restore. A backup that can't be restored is just a decorative file.

3. Silent replication lag

The replica is 3 days behind, but nobody watches Seconds_Behind_Master. PmaControl alerts as soon as the lag exceeds the configured threshold.

The solution

A dedicated database observability tool that doesn't just collect metrics but actually understands your architecture.

That's exactly what PmaControl does.