Setting up Postgres 18 on Ubuntu 26.04 for Mastodon (Draft)
Install packages xxx
Setting up Redis 8 on Ubuntu 26.04 for Mastodon
Notice: Mastodon requires two kinds of cache. Sidekiq queues and home feeds, and the rails cache.Large instances should consider running two or even separate Redis servers. Working from https://docs.joinmastodon.org/admin/scaling/ Mastodon Server: maxmemory-policy: noeviction and appendonly yes, appendfsync everysec because we want to save the state.Cache Server: `maxmemory-policy: allkeys-lru and save […]
Setting up Ubuntu 26.04 + ElasticSearch 9 for Mastodon 4.6
Notes: Prepare system Install package Notice output Edit /etc/elasticsearch/jvm.options.d/heap.options Add about 50% of the memory for the JVM and the other 50% for the Apache Lucene (full text search) and OS cache.Both values should be the same… last time I checked, having a lower minimum caused a hard error starting […]
Mastodon Postgres Migration Notes – (File based) Export and Import
This is going to assume the new version is 18, and the database is called mastodon_production. Migration Stages Check Postgres pg_extension (Repack and other extensions) You can check if you used other extensions using this SQL on the old DB. NEWDB: New Cluster sudo pg_createcluster 18 techhubproduction -d /data/18/techhubproduction — […]
Proxmox Tuning – Part 1 (VM CPU Tuning and 1GB HugePages in Ubuntu VMs)
With the release of Ubuntu 26.04 LTS, I’ve started to rebuild some of my VMs from 24.04 and took the opportunity to polish the proxmox VM settings. Proxmox: VM CPU Tuning Notice: The details below are about my AMD EYPC Server CPUs, but for proxmox environments with only Intel or […]
[DRAFT] You should consider hosting in a Co-Location data center! – Part 1: The Why
Let’s answer the question… Is co-location right for you? Over 12 months ago, I made the switch from cloud VMs to dedicated co-location hosting a Proxmox cluster, and it turned out to be one of the best decisions for my specific needs. This move has allowed me to maintain predictable […]
Online Safety Amendment (Social Media Minimum Age) Bill 2024 Inquiry Submission
There was a 24 hour window of submission for the Social Media Minimal Age bill.. and I decided to write something straight to the point. https://www.aph.gov.au/Parliamentary_Business/Committees/Senate/Environment_and_Communications/SocialMediaMinimumAge
Mastodon S3 Timeout and cascading failure!
TLDR: CHECKING YOUR WEB/PUMA LOGS AND SIDEKIQ DEAD QUEUE FOR S3 ReadTimeout ERRORS FOR FUN AND PROFIT!!! I recently started investigating the high bandwidth being used by my Mastodon instance, and noticed a lot of errors (similar to below) showing failures related to uploading files to my S3 provider Wasabi. […]
WordPress to Mastodon test
This should federate to Mastodon.