PostgreSQL Guide for Monitoring, Performance, and Operations

Production PostgreSQL

PostgreSQL Guide for Monitoring, Performance, and Operations

PostgreSQL is reliable when operations are disciplined: good monitoring coverage, query-level visibility, controlled index rollout, and evidence-driven tuning. This page is the central entry point for MonPG's PostgreSQL knowledge hub.

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PostgreSQL Monitoring

Build visibility around query behavior, lock pressure, vacuum, replication lag, and WAL growth before incidents escalate.


Query and Planner Behavior

Understand estimate drift, plan instability, and planner choices that create sudden latency regressions.


Slow Query Triage

Rank queries by total impact, investigate regressions, and validate remediation steps safely.


Sizing and Capacity

Model CPU, memory, storage, and connection pressure against real traffic and workload shape.

PostgreSQL operating model

Observe

Collect query, lock, vacuum, and replication signals continuously.

Diagnose

Correlate query fingerprints, planner evidence, and index state before changing production.

Change safely

Roll out indexes and tuning changes with explicit risk criteria and rollback gates.

PostgreSQL topic hubs

pgvector Monitoring
Query Optimizer
Sizing
Slow Query Monitoring
Query Monitoring

PostgreSQL diagnostic tools

pgvector HNSW Index Tuner

Benchmark 48 HNSW configurations against your real pgvector data in 10 minutes. Get the optimal m, ef_construction, and ef_search plus zero-downtime migration SQL.


PostgreSQL Plan Autopsy

Paste EXPLAIN ANALYZE output and get an incident-style read of the plan: planner estimate drift, loop explosions, disk spills, buffer pressure, and the evidence SQL to prove the fix.


PostgreSQL Index Rollout Simulator

Model a proposed PostgreSQL index as a production rollout: DDL shape, lock level, WAL pressure, write amplification, replica lag risk, validation SQL, and rollback criteria.

Tool comparisons

Use these pages when choosing between PostgreSQL monitoring approaches. They focus on decision quality in production workflows.

pgvectorBench vs MonPG HNSW Tuning Lab
pganalyze vs MonPG
Datadog vs MonPG
New Relic vs MonPG
Grafana + Prometheus vs MonPG
Prometheus Exporters vs MonPG