Startup fails with "out of memory", but is not

[matthiasbeyer]

Hi,

I am trying to set up this software, but startup fails here:

fail2ban-ui/internal/config/settings.go

Line 310 in 6971d82

panic(fmt.Sprintf("failed to initialise storage: %v", err))

Mar 31 19:37:02 moon fail2ban-ui[2431616]: panic: failed to initialise storage: unable to open database file: out of memory (14)
Mar 31 19:37:02 moon fail2ban-ui[2431616]: goroutine 1 [running]:
Mar 31 19:37:02 moon fail2ban-ui[2431616]: github.com/swissmakers/fail2ban-ui/internal/config.init.0()
Mar 31 19:37:02 moon fail2ban-ui[2431616]:         github.com/swissmakers/fail2ban-ui/internal/config/settings.go:310 +0x385
Mar 31 19:37:02 moon systemd[1]: fail2ban-ui.service: Main process exited, code=exited, status=2/INVALIDARGUMENT

The error message seems to be misleading though, as the host has 14GB of free RAM and the service unit does not restrict ram usage of the service...

[swissmakers]

Hi matthiasbeyer,
Could you please provide more information how you exactly try to run or build fail2ban-ui?
The first warning of your message, seems like a permission problem to me.

cheers

[matthiasbeyer]

I package it for nixpkgs and add a service for it here: NixOS/nixpkgs#504161

This is still WIP, so there's probably stuff missing here.

[swissmakers]

Ok sounds good, thank you very much @matthiasbeyer for your effort.

[matthiasbeyer]

Yeah but until the reported issue is resolved I cannot do anything...

[swissmakers]

Yes I was already analysing it... It seems that the startup fails because SQLite cannot create/open fail2ban-ui.db in your persistant directory (read-only?). The error (14) is SQLITE_CANTOPEN and is storage related not RAM.
(see: https://www.sqliteviewer.com/blog/how-to-troubleshoot-sqlite-error-14/ and https://sqlite.org/rescode.html#cantopen)

[swissmakers]

This misleading message seems to come from the official go sqlite module https://gitlab.com/cznic/sqlite
But seems to be patched, i will then upgrade that module, so this wrong message also vanishes for other users https://gitlab.com/search?search=out%20of%20memory&nav_source=navbar&project_id=9241019&search_code=true&repository_ref=master

cheers

[matthiasbeyer]

Ok I got it almost starting. Now it complains about some templates missing... Why would it need templates at runtime? Aren't they compiled in anyways?

[swissmakers]

Please pull the latest main branch, this was a refactoring I already did but I didn't pushed it jet until now.

[matthiasbeyer]

okay, step by step.

Now the environment variables BIND_ADDRESS and PORT are ignored... 👀 The service still starts at 0.0.0.0:8080 instead of my configured 127.0.0.1:3000...

[swissmakers]

Hi @matthiasbeyer what is the current state on your side, did the new version of the fail2ban-UI fix your problem? It should only bind and start on 0.0.0.0:8080 if no other ENV or config was set. So maybe there is somting wrong with the env-settings or the hand-over of thouse settings to the ui-server.

Cheers