I have a raspberry Pi 3 B+. How do I host Discourse on it so I don’t have to pay money? How do I get a domain name for free?

[תמונה] Stephen: So ~80% slower. On my Pi 4: 536870912 bytes (537 MB, 512 MiB) copied, 2.31501 s, 232 MB/s Depends on which microSD speed rating you buy.

In my opinion you are better off waiting for the eventual Raspberry Pi 5, which – if you graph forward the progress in Pi performance from 2, to 3, to 4 – should have enough oomph to run Discourse. I’m not sure the x86 (x64?) dependencies are surmountable at the moment, either, but not a bad idea to look at that for longer term.

A cluster of Pi 4 with the 64-bit quad core 1,5Ghz and possibly USB3 disks for storage (~300MB/s) or external blob store (S3 or GCP) and a CDN in front of those anonymous users must be a possible platform alternative :slight_smile: Future will tell!

[תמונה] balboah: 536870912 bytes (537 MB, 512 MiB) copied, 2.31501 s, 232 MB/s That’s not really a meaningful number on its own. You didn’t specify which microSD card that was, but it’s in the same order of magnitude as a Lexar Professional 1800x, which can sustain sequential read speeds of ~300MB/s and writes approaching 250MB/s. Sequential reads and writes aren’t the problem with microSD though, you need to look at random reads/writes to get a real feel for what’s going to be happening with multiple users hitting the database and local assets. Modern SSDs usually fall in the region of 500MB/s+ sequential reads and 475Mb/s+ sequential writes - which isn’t too far off the numbers above. The performance delta on random reads/write though is huge - the same SSD will pull up too 400MB/s on a 4KiBQ8T8 while the Lexar drops to low double-digits, at 15MB/s or thereabouts. Random writes are even worse, with SSD still sustaining as much as 300MB/s while a microSD gets nailed well into low single digits (2MB/s). I’m a big fan of rPi, and use them in a bunch of places, but they’re still a long way from where we need them to be.

It’s a USD $20 (in Sweden) sandisk 64GB card, rated A2 I believe. Just wanted to prove the pure sequential speed is not as bad as you made it sound :slight_smile: If it doesn’t work on the rPi even with external SSD on the USB3 ports, I’d assume running the database externally would fix that particular bottleneck. But I’m biased as I like the idea of getting an arm cluster up and running with the now real 1GBit/s NICs on Pi 4. I also like to challenge “it doesn’t work” mentality in general :wink:

[תמונה] balboah: I also like to challenge “it doesn’t work” mentality in general :wink: If you throw enough time, money and resources at anything you can make it work. Requests to run Discourse on a Raspberry Pi over the past few years typically originate from users who have a Pi, and don’t want to spend anything beyond that. That’s effectively what we’re exploring here. The moment you start bolting on external SSDs and offloading the database to a different system you aren’t really talking about hosting Discourse on a Raspberry Pi at all. :wink:

[תמונה] Stephen: users who have a Pi, and don’t want to spend anything beyond that Right. I agree you still usually get what you pay for :slightly_smiling_face:

take a Raspberry PI 4 ram4 or ram8 :wink: then take one MicroSD (INDUSTRIAL) up Amazzon… Ebay… write on Docker dal sito: https://blog.hypriot.com/ :smiling_face_with_three_hearts: :slightly_smiling_face: precisely to the section: Download, latest version. once the image is written to SD, insert in the Raspberry PI and connect away SSH (Username Password for Docker SSH I’m: “pirate” “hypriot” → (User: pirate) (Pass: hypriot).) obviously after connecting SSH change the credentials to your liking from → sudo raspi-config, restart Raspberry. once restarted, connect with SSH and install “Discourse” following this guide: https://linoxide.com/how-tos/install-discourse-docker-container/ :wink: obviously you will start from the point 2) because Docker you installed it right from the start. good fun.

Hi Massym, I followed your instructions, installed hypriot, etc., but got the following error: $ ./launcher bootstrap app standard_init_linux.go:211: exec user process caused "exec format error" Your Docker installation is not working correctly See: https://meta.discourse.org/t/docker-error-on-bootstrap/13657/18?u=sam Any thoughts? Thank you.

[תמונה] Your Docker installation is not working correctly on Linux/ARM Self-hosting Discourse isn’t supported in arm64 arch, only x86_64.

Hosting Discourse on a Raspberry Pi?

תמיכה התקנה

Falco (Falco) 7 בדצמבר,‏ 2021,‏ 2:08pm 39

This is now supported

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Hosting Discourse on a Raspberry Pi?

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