Jordan Andree jordanandree

Nginx FastCGI response buffer sizes

By default when Nginx starts receiving a response from a FastCGI backend (such as PHP-FPM) it will buffer the response in memory before delivering it to the client. Any response larger than the set buffer size is saved to a temporary file on disk.

This process is outlined at the Nginx ngx_http_fastcgi_module page manual page.

Introduction
Determine actual FastCGI response sizes
Setting the buffer size
Verifying results

There is a bug in PhantomJS on Mac OS X that doesn't render an HTML page as selectable text. ~~It will be fixed in PhantomJS 2.0~~, so for now you'll have to apply a patch when installing with Homebrew.

First, update homebrew formulae:

$ brew update

If you already have PhantomJS installed, then remove it:

$ brew uninstall phantomjs Next, the PhantomJS formula needs to be edited to apply a patch that fixes native text rendering in Mac OS X:

	NoMethodError: undefined method `force_encoding' for nil:NilClass
	/Users/jordanandree/.rvm/gems/ruby-2.2.0/gems/tilt-1.4.1/lib/tilt/template.rb:289:in `ensure in binary'
	/Users/jordanandree/.rvm/gems/ruby-2.2.0/gems/tilt-1.4.1/lib/tilt/template.rb:289:in `binary'
	/Users/jordanandree/.rvm/gems/ruby-2.2.0/gems/tilt-1.4.1/lib/tilt/template.rb:279:in `extract_magic_comment'
	/Users/jordanandree/.rvm/gems/ruby-2.2.0/gems/tilt-1.4.1/lib/tilt/template.rb:275:in `extract_encoding'
	/Users/jordanandree/.rvm/gems/ruby-2.2.0/gems/tilt-1.4.1/lib/tilt/template.rb:191:in `precompiled'
	/Users/jordanandree/.rvm/gems/ruby-2.2.0/gems/tilt-1.4.1/lib/tilt/erb.rb:57:in `precompiled'
	/Users/jordanandree/.rvm/gems/ruby-2.2.0/gems/tilt-1.4.1/lib/tilt/erb.rb:104:in `precompiled'
	/Users/jordanandree/.rvm/gems/ruby-2.2.0/gems/tilt-1.4.1/lib/tilt/template.rb:245:in `compile_template_method'
	/Users/jordanandree/.rvm/gems/ruby-2.2.0/gems/tilt-1.4.1/lib/tilt/template.rb:240:in `compiled_method'

	body {
	margin-top: 80px;
	}

	#banner-wrapper {
	display: block !important;
	}

	#navigation-top { position: fixed; top: 0; left: 0; z-index: 5; }
	#main-navigation {

	From b0c7acf6c5ce127778f113041771d827defbc36d Mon Sep 17 00:00:00 2001
	From: jordanandree <jordanandree at gmail.com>
	Date: Wed, 11 Mar 2015 10:46:41 -0400
	Subject: [PATCH] selectable text for pdfs on Mac OS

	---
	src/webpage.cpp \| 5 +++++
	1 file changed, 5 insertions(+)

	diff --git a/src/webpage.cpp b/src/webpage.cpp

	Process: SoundCleod [31653]
	Path: /Applications/SoundCleod.app/Contents/MacOS/SoundCleod
	Identifier: sc.SoundCleod
	Version: 0.17 (0.17)
	Code Type: X86-64 (Native)
	Parent Process: ??? [1]
	Responsible: SoundCleod [31653]
	User ID: 502

	Date/Time: 2015-01-12 11:35:35.447 -0500

	<head>
	<style>
	#email {
	background-image:url("bg-image.jpg");
	background-color:#336699;
	}
	</style>
	</head>
	<body>
	<table background="bg-image.jpg" bgcolor="#336699" id="email">

	<h1>CSS3 Pseudo Sound Bars</h1>
	<div id="bars">
	<div class="bar"></div>
	<div class="bar"></div>
	<div class="bar"></div>
	<div class="bar"></div>
	<div class="bar"></div>
	<div class="bar"></div>
	<div class="bar"></div>
	<div class="bar"></div>

	/Users/jordanandree/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/passenger-3.9.0/lib/phusion_passenger/loader_shared_helpers.rb:123:in `write': "\xE2" from ASCII-8BIT to UTF-8 (Encoding::UndefinedConversionError)
	from /Users/jordanandree/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/passenger-3.9.0/lib/phusion_passenger/loader_shared_helpers.rb:123:in `puts'
	from /Users/jordanandree/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/passenger-3.9.0/lib/phusion_passenger/loader_shared_helpers.rb:123:in `block (2 levels) in dump_envvars'
	from /Users/jordanandree/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/passenger-3.9.0/lib/phusion_passenger/loader_shared_helpers.rb:122:in `each_pair'
	from /Users/jordanandree/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/passenger-3.9.0/lib/phusion_passenger/loader_shared_helpers.rb:122:in `block in dump_envvars'
	from /Users/jordanandree/.rbenv/versions/1.9.2-p290/lib/ruby/gems/1.9.1/gems/passenger-3.9.0/lib/phusion_passenger/loader_shared_help

	def ಠ_ಠ
	puts "(╯°□°）╯︵ ┻━┻"
	end