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I've spun up my first real kubernetes cluster

All on my own!

I've heard horror stories about it taking months upon months in the past and they've been keeping me from trying. Silly me :)

It took under two days; and most of the time was trying to figure out all the problems caused by being behind a an http proxy. Looking back, I can see it can be done in a minute or so now that I've got a few bits of config nailed down.

Granted this is a very bare bones cluster atm, but applying that test nginx deployment and seeing all three replicas running, one on each node, has sent me buzzing :)

Next step - generating an internal intermediate and shoving it into the cluster.

Happy Monday!

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general·General Lemmy.CafebyIllecors

[Maintenance] 13 October, Sunday, 12:00 UTC

Lemmy Cafe will be having its database upgraded.

Reasons

  • PostgreSQL 17 has been released and the changelog is promising a lot of IO improvements. Lemmy sure could use it given the constant stream of small events flowing in.

Plan

  • Point nginx to the maintenance page
  • Shut down PostgreSQL 16
  • Run the upgrade tool
  • Start up PostgreSQL 17
  • Point nginx to lemmy

Expected downtime

About an hour, if things go well. More if not so.

Will try to keep the maintenance page updated.

Here's the timezone converter.

View original on lemmy.cafe
general·General Lemmy.CafebyIllecors

Lemmy.Cafe Housekeeping

Due to the recent @Soup's post I have decided to do some housekeeping. I've been getting frustrated at lemmy's performance at times as well and this simply was a wake up call, if you will.

I am sorry about no advance downtime annoucement - Sunday is the only day I can really put any meaningful amount of time into lemmy.


Things done today:

  • Upgraded database VM 1 core 2GB -> 2 cores 4GB. Double the compute, double the memory.
  • Adjusted database config to account for increased resources
  • Adjusted hugepages config to account for increased database's requests
  • Updated both lemmy and database VMs
  • Rebooted the lot

Thank you for your patience. I will also use this moment of focus to write up a financial report in a separate post.

Also, thank you, @Soup!


EDIT: I've also marked all instances known to lemmy.cafe as active. What this means is that lemmy.cafe will now keep retrying to federate to everything very aggressively. This is a compute-intensive process and will also impact performance for a few hours, until exponential backoff kicks in. I've done it to revive any falsely-marked-as-dead instances; there's no fix for it on lemmy itself.

View original on lemmy.cafe