credativ® Blog
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08 January 2025
ONTAP snapshots for Proxmox VE
ONTAP snapshots for Proxmox VE In modern IT infrastructure, virtualization is the key to efficient resource management. With virtualization, memory, cpu, network and storage resources can easily be assigned to and shared between virtual machines (VM). Virtualization also comes with the advantage of being able to easily change the resources assigned to virtual machines or […]
17 December 2024
Quick Benchmark: Improvements to Large Object Dumping in Postgres 17
Version 17 of PostgreSQL has been released for a while. One of the many features is a change by Tom Lane called “Rearrange pg_dump’s handling of large objects for better efficiency”. In the past, we have seen our customers have several problems with a large number of large objects being a performance issue for dump/restore. […]
04 December 2024
Unique Constraint Violations During Inserts Cause Bloat in PostgreSQL
The issue of table and index bloat due to failed inserts on unique constraints is well known and has been discussed in various articles across the internet. However, these discussions sometimes lack a clear, practical example with measurements to illustrate the impact. And despite the familiarity of this issue, we still frequently see this design […]
15 October 2024
TOASTed JSONB data in PostgreSQL: performance tests of different compression algorithms
TOAST (The Oversized Attribute Storage Technique) is PostgreSQL’s mechanism for handling large data objects that exceed the 8KB data page limit. Introduced in PostgreSQL 7.1, TOAST is an improved version of the out-of-line storage mechanism used in Oracle databases for handling large objects (LOBs). Both databases store variable-length data either inline within the table or […]
11 October 2024
Migrating from Redis to Valkey: A Guide to the Future of In-Memory Key-Value Databases
Introduction Redis is a widely popular in-memory key-value high-performance database, which can also be used as a cache and message broker. It has been a go-to choice for many due to its performance and versatility. Many cloud providers offer Redis-based solutions: Amazon Web Services (AWS) – Amazon ElastiCache for Redis Microsoft Azure – Azure Cache […]