The logs show the following: PG::InvalidTextRepresentation (ERROR: invalid input syntax for type inet: "unix:" LINE 7: client_ip = 'unix:', ^ ) lib/mini_sql_multisite_connection.rb:109:in 'MiniSqlMult rack-mini-profiler (4.0.1) lib/patches/db/pg/alias_method.rb:109:in 'PG::Connection#exec' rack-mi…

I’m not an expert and I did not use Caddy but Nginx on my self-hosted instance, but can I ask for your actual Caddy and Discourse templates configuration in ./app/containers.yml? Can you remember what you usually did before the error happens? I mean, changing admin settings, posting, using some plu…

This means that a request / user has a remote ip pointing to your socket, which means something in your proxy chain is misconfigured.

@satonotdead @Falco app.yml templates: - "templates/postgres.18.template.yml" - "templates/redis.template.yml" - "templates/web.template.yml" - "templates/web.socketed.template.yml" - "templates/enable-ruby-yjit.yml" ## which TCP/IP ports should this container expose? ## If you…

If the connection to the socket is right until it gets dropped, I think you can add explicit timeouts and transport options.

I think you can add explicit timeouts and transport options How?

Well, as I said before, I did not use Caddy but you can look into their official docs .

I think I found the problem. If I perform a rebuild, I never restart Caddy. From now on, I’m going to do this: ./launcher rebuild app && systemctl reload caddy I suspect that Caddy uses the socket cache or something similar after a rebuild. But it doesn’t usually happen immediately after a rebuild…

I’ve been working on this for days. I’ve verified that Caddy sends the header, that nginx receives and applies it, that there’s no CDN, no other process touching the socket, and no webhooks. Every single test passes. And the Unix error keeps appearing. I thought it was because of the rebuild, but it…

Did you add the timeouts I suggested to your Caddy template? While I’m no expert, I think that might solve your problem.

Doing that doesn’t make sense because some requests fail in 15 seconds and others in less than 1 second. It’s basically pointless.

我在 Caddy 和 Discourse 之间使用 Unix 套接字而非 TCP，但偶尔会出现 'unix:' 错误

支持

Falco (Falco) 2026 年8 月 3 日 16:08 3

这意味着请求/用户有一个指向你的 Socket 的远程 IP，这表明你的代理链中的某些配置不正确。

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我在 Caddy 和 Discourse 之间使用 Unix 套接字而非 TCP，但偶尔会出现 'unix:' 错误

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