After deploying a self-hosted Nominatim server, I noticed that search result ranking was different from the public Nominatim service. For […]
This post shows how to deploy OpenStreetMap-related services on a separate Ubuntu 26.04 server. The OSM service domain used in
PostGIS adds spatial database features to PostgreSQL. With PostGIS, PostgreSQL can store geographic data such as coordinates, points, routes, and
In this post, I will show how to run a Python-based stock data collector that publishes U.S. stock market data
This post explains a common (and confusing) failure mode when running EJBCA on WildFly with MariaDB/MySQL: An exception has occurred.JDBC
Ubuntu 24.04 ships PostgreSQL in its own repositories (PostgreSQL 16 at the time of writing). The PostgreSQL Global Development Group
Introduction In my previous post I showed how to run Kafka 4.0 + HAProxy on a single Ubuntu 24.04 node
Scope: wipe & rebuild the full ThingsBoard data pathKeyspace: thingsboard (drop + recreate)Kafka topics: tb.thingsboard.ts_kv_cf, tb.thingsboard.ts_kv_partitions_cf (auto-create enabled)Delta root: /delta
When I followed my earlier guide End-to-End Stream: Cassandra 5.0.5 CDC → Kafka 4.0 (SASL/SSL) → Spark 3.5.6 → Delta
Goal: make Cassandra’s memory use predictable by pinning the JVM heap and (optionally) capping off-heap/direct memory. This guide targets Ubuntu
