Anyone who knows me knows that I’ve been using next cloud forever, and I fully endorse anyone doing any level of self hosting should have their own. It’s just a self-hosted Swiss army knife, and I personally find it even easier to use than something like SharePoint.

I had a recurring issue where my logs would show “MYSQL server has gone away”. It generally wasn’t doing anything, but occasionally would cause large large file uploads to fail or other random failures that would stop quickly after.

The only thing I did is I went in and doubled wait_timeout in my /etc/mysql/mariadb.conf.d/50-server.cnf

After that, my larger file uploads went through properly.

It might not be the best solution but it did work so I figured I’d share.

    • @[email protected]English
      8•11 months ago

      Okay, did the migration just now. Everything seems a little more responsive, but I wouldn’t call it way faster.

      Either way, it wasn’t very scary at all. For anybody coming after me:

      • add postgres container to compose file like so. I named mine “postgres”, added a “postgres” volume, and added it to depends_on for app and cron
      • run migration command from nextcloud app container like any other occ command and check admin settings/system for db state: ./occ db:convert-type --password $POSTGRES_PASSWORD --all-apps pgsql $POSTGRES_USER postgres $POSTGRES_DB
      • remove old “db” container and volume and all references to it from compose file and run docker compose up -d --remove-orphans
      • @haploEnglish
        3•11 months ago

        Thank you for this. I really dislike MySQL/MariaDB and favor SQLite whenever possible, or PostgreSQL otherwise. The DB migration of my Nextcloud instance was high in my to-do list, and your instructions saved me research time.

        • @[email protected]English
          2•11 months ago

          Here’s a cool article I found on Nextcloud performance improvements, and connecting Redis over Unix sockets gave me a more substantial performance improvement than migrating to Postgres. Very happy I fell down this rabbit hole today.

          To note if you’re following the tutorial in the link above, and for people using the nextcloud:stable container together with the recommended cron container:

          • the redis configuration (host, port, password, …) need to be set in config/config.php, as well as config/redis.config.php
          • the cron container needs to receive the same /etc/localtime and /etc/timezone volumes the app container did, as well as the volumes_from: tmp
          • @haploEnglish
            2•11 months ago

            Thank you for the link and the Redis pointers. I should double check that my Nextcloud setup is using Redis, it might well be misconfigured.

          • sj_zeroOP
            0•11 months ago

            If you do end up using postgresql, over time the database could end up getting fragmented and that can lead to increased latency, so routine pg_repacks imo are a worthwhile thing to schedule.

    • Björn TantauEnglish
      1•11 months ago

      Well, another guy responded before you, so that would be the last time I heard it.

      It was probably on one of the posts in this community.