From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <e@80x24.org>
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net
X-Spam-Level: 
X-Spam-ASN:  
X-Spam-Status: No, score=-4.0 required=3.0 tests=ALL_TRUSTED,BAYES_00
	shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2
Received: from localhost (dcvr.yhbt.net [127.0.0.1])
	by dcvr.yhbt.net (Postfix) with ESMTP id 672101F8C6;
	Wed,  7 Jul 2021 00:16:04 +0000 (UTC)
Date: Wed, 7 Jul 2021 00:16:04 +0000
From: Eric Wong <e@80x24.org>
To: Cenon Del Rosario <cdelrosario@publishing.nine.com.au>
Cc: unicorn-public@yhbt.net
Subject: Re: Formatting unicorn logs in json format for $stderr
Message-ID: <20210707001604.GA18838@dcvr>
References: <CAKZvEvJ2aYd=aZ-tY8JOUMTGbLJ2PDfMZULCFkJi9_7FdLeZ7A@mail.gmail.com>
 <20210706104124.GA438@dcvr>
 <CAKZvEvKvXh=_CD7qO2=VHOa4E5YQuvM+UsazvEzGQ1Z5dxM0tw@mail.gmail.com>
 <20210706233818.GA11462@dcvr>
 <CAKZvEv+UeQGqrJBSFCH2fYos-ScysK2Bozb7fM8ijoWSubvkdA@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
In-Reply-To: <CAKZvEv+UeQGqrJBSFCH2fYos-ScysK2Bozb7fM8ijoWSubvkdA@mail.gmail.com>
List-Id: <unicorn-public.yhbt.net>

Cenon Del Rosario <cdelrosario@publishing.nine.com.au> wrote:
> > > > I suspect one of those lines could be the result of
> > > > Rack::CommonLogger from RACK_ENV=deployment or similar
> > > > (which matched "rackup" defaults back in 2009).
> > > >
> 
> Yes I just tried this and it fixed the issue (I used -N but
> RACK_ENV=none also worked)

Cool, good to know.

> Just wondering what other things will be impacted by turning off rack
> middleware?

Rack::{ContentLength,Chunked,TempfileReaper} for prod:
https://yhbt.net/unicorn-public/d5991fea2df857480b728e27c927d69c3df2080f/s/?b=lib/unicorn.rb#n67

You can set them up yourself in config.ru, but maybe Rails
also does that for you.  I haven't used Rails in many years,
but I seem to recall Rails had its own middleware stack somewhere,
too, but you'll have to refer to Rails docs for that.