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PMPhilip McClarencepostgresdba.hashnode.devApr 22 · 4 min read

PostgreSQL Parallel Query: Configuration & Performance Tuning

PostgreSQL Parallel Query: Configuration & Performance Tuning I was helping a team optimize their reporting pipeline. Their aggregation queries against a 100M-row table were taking 30+ seconds each. They had a 32-core server with plenty of RAM. When ...

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NBNishant Bhandarijava-insights.hashnode.devMar 14 · 4 min read

Memory Leak vs High Memory Usage in Java — A Practical Explanation

One of the most common misunderstandings when debugging Java applications running on the JVM is this: High memory usage does not necessarily mean there is a memory leak. Many engineers immediately s

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PMPhilip McClarencepostgresdba.hashnode.devMar 10 · 5 min read

TimescaleDB Memory Tuning: shared_buffers, work_mem, and Chunk Sizing

TimescaleDB Memory Tuning: shared_buffers, work_mem, and Chunk Sizing I frequently encounter TimescaleDB deployments where the team has followed standard PostgreSQL tuning advice -- 25% shared_buffers, bump work_mem a bit, set effective_cache_size --...

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PMPhilip McClarencepostgresdba.hashnode.devMar 9 · 15 min read

PostgreSQL Performance Tuning: The Complete Configuration Guide

PostgreSQL Performance Tuning: The Complete Practical Guide The default PostgreSQL configuration is designed to run on a Raspberry Pi. If you are running production workloads on default settings, you are leaving 80% of your hardware's capability on t...

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PMPhilip McClarencepostgresdba.hashnode.devMar 6 · 5 min read

Tuning pgvector Queries: Probes, ef_search, and Distance Functions

Tuning pgvector Queries: Probes, ef_search, and Distance Functions Here is a question for anyone running pgvector in production: what is the recall of your similarity search? Not the latency, not the throughput -- the recall. What percentage of the t...

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IIAMDevBoxiamdevbox.hashnode.devMar 2 · 4 min read

Optimizing PingDirectory for Enterprise Scale Performance

PingDirectory performance tuning involves optimizing the configuration and settings of PingDirectory to handle large volumes of LDAP traffic efficiently. This ensures that your identity and access management (IAM) system remains responsive and scalab...

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PMPhilip McClarencepostgresdba.hashnode.devFeb 26 · 6 min read

PostgreSQL Autovacuum Tuning: A Practical Guide

PostgreSQL Autovacuum Tuning: A Practical Guide Here's a question that separates experienced PostgreSQL operators from everyone else: how many dead tuples does your busiest table accumulate before autovacuum kicks in? If you're running defaults on a ...

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SSSQL Server Expertsqlserver-expert.hashnode.devAug 14, 2025 · 4 min read

Entendendo Wait Types no SQL Server: um guia para iniciantes

Se você está começando sua jornada como DBA ou desenvolvedor SQL, entender wait types é essencial para diagnosticar gargalos de performance com precisão — sem adivinhar. Neste guia, você vai ver o que são waits, por que importam, como consultá-los e ...

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SSSQL Server Expertsqlserver-expert.hashnode.devAug 4, 2025 · 17 min read

Triggers no SQL Server: Conceitos, Tipos e Impacto no Desempenho

Introdução Triggers (gatilhos) no SQL Server são objetos de banco de dados que contém código T-SQL executado automaticamente em resposta a determinados eventos no servidor. Diferentemente de stored procedures, não podemos invocar uma trigger diretame...

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CRChitt Ranjan Mahto (Chirag)chiragtutorial.hashnode.devJul 20, 2025 · 4 min read

Installation, Configuration & Tuning of PostgreSQL 17 and pgAdmin4 in Ubuntu 24.04 LTS

inchirags@gmail.com Chirag's PostgreSQL DBA Tutorial https://www.chirags.in ***************************************************************************************** Installation, Configuration & Tuning of PostgreSQL 17 and pgAdmin4 in Ubuntu 24.04 L...

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Trending tags this week

PostgreSQL Parallel Query: Configuration & Performance Tuning

Memory Leak vs High Memory Usage in Java — A Practical Explanation

TimescaleDB Memory Tuning: shared_buffers, work_mem, and Chunk Sizing

PostgreSQL Performance Tuning: The Complete Configuration Guide

Tuning pgvector Queries: Probes, ef_search, and Distance Functions

Optimizing PingDirectory for Enterprise Scale Performance

PostgreSQL Autovacuum Tuning: A Practical Guide

Entendendo Wait Types no SQL Server: um guia para iniciantes

Triggers no SQL Server: Conceitos, Tipos e Impacto no Desempenho

Installation, Configuration & Tuning of PostgreSQL 17 and pgAdmin4 in Ubuntu 24.04 LTS