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All check types
Databases & Queues

PostgreSQL Monitoring

PostgreSQL monitoring opens a real connection and validates the startup handshake — catching auth failures, connection-limit exhaustion and wedged listeners that a TCP check alone misses.

The database answering 'accepting connections' is not the same as healthy

What it checks

  • Postgres protocol handshake and accept status
  • Connection latency per check
  • Auth and too-many-connections failures

Set it up

  1. 1Add a PostgreSQL monitor with host and port
  2. 2Use the internal agent for private databases
  3. 3Alert the data owner, not just generic on-call

FAQ

How do I monitor a private Postgres instance?

Install the internal agent on a host inside the network — it runs the same check locally and reports state, no exposed port needed.

Related check types

MySQL / MariaDB MonitoringConnection refused is how your app learns the DB is down — get there firstRedis MonitoringWhen the cache dies, the database takes the hitRabbitMQ MonitoringQueues fail silently — consumers just get slower

Start monitoring in minutes

External probes plus internal agents, escalation chains and status pages — free tier, no card required.

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