Monitor PostgreSQL.
Monitor PostgreSQL connections, cache hit ratio, lock waits, query performance, replication lag, and autovacuum health.
Complete PostgreSQL observability.
The Watchlog Agent collects these metrics automatically once the PostgreSQL integration is enabled.
pg_stat_activity.count(state=active)Active BackendsSessions currently executing queries
numbackends / max_connectionsMax Connection UtilizationFraction of the connection limit currently in use
blks_hit / (blks_hit + blks_read)Cache Hit RatioPercentage of page reads served from shared buffers
tup_returnedTuples Returned/secRows scanned by sequential scans per second
tup_fetchedTuples Fetched/secRows retrieved by index scans per second
pg_stat_activity.lock_waitsLock WaitsSessions blocked waiting for a table or row lock
pg_stat_database.deadlocksDeadlocksDeadlock events detected in the database
n_dead_tupDead TuplesRows marked for deletion awaiting vacuum
n_dead_tup triggerAutovacuum ActivityTables currently being vacuumed or scheduled
pg_stat_replication.write_lagReplication LagWAL bytes the replica is behind the primary
temp_filesTemp Files CreatedTemp files written to disk due to work_mem overflow
xact_commit + xact_rollbackTransaction RateCommitted and rolled-back transactions per second
PostgreSQL at a glance.
A pre-built PostgreSQL dashboard activates the moment you enable the integration — no configuration required.
What engineers use PostgreSQL monitoring for.
Query performance analysis
Use pg_stat_statements data to identify the slowest queries and highest-cost execution plans across your production database.
Lock contention debugging
Visualize lock waits and deadlock frequency. Know which queries are blocking each other and for how long.
Vacuum and bloat monitoring
Track dead tuples per table and autovacuum activity. Prevent table bloat from degrading sequential scan performance.
Replication health tracking
Monitor write lag between primary and replicas. Alert before replica drift affects read-heavy workloads.
Fewer blind spots. Earlier warnings.
Engineering teams that monitor PostgreSQL with Watchlog catch failure signals before they become incidents.
- ✓Catch lock contention before it blocks your entire write path
- ✓See cache hit ratio drops that indicate missing indexes or changed query patterns
- ✓Get alerted on replication lag before reads return stale results
- ✓Track temp file creation — a signal that work_mem needs tuning
- ✓Monitor autovacuum to prevent table bloat from accumulating silently
PostgreSQL monitoring in under 2 minutes.
No YAML. No config files. The Watchlog Agent detects PostgreSQL on your host and begins collecting immediately.
Install the Watchlog Agent
Deploy the agent on your PostgreSQL host. It detects the running instance automatically.
Enable PostgreSQL integration
Open Watchlog → Integrations → PostgreSQL. Grant the agent a read-only monitoring role.
Dashboard populates in 60s
Connection stats, cache hit ratios, and lock events appear within one minute.
sudo apiKey="$WATCHLOG_API_KEY" server="$WATCHLOG_SERVER" MEMORY="300M" bash -c "$(curl -L https://watchlog.io/ubuntu/watchlog-script.sh)The agent automatically detects PostgreSQL running on your host and begins collecting metrics immediately.
Start monitoring PostgreSQL now.
Full PostgreSQL visibility in under 2 minutes. No credit card required.
Questions? Contact us at [email protected]