User:Woozle/nginx - Revision history

Woozle: Fixed cookie problem.

2012-06-24T21:43:25Z

Fixed cookie problem.

← Older revision		Revision as of 21:43, 24 June 2012
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	Tried [[PHP-FPM]] again. It initially was giving a 502 Gateway Error, but then I realized I had reconfigured it to use a socket rather than a port. Change that, and you get a notice in the error log if something else is hogging the port (this is good). Make sure nothing else is (i.e. kill php-cgi if you had it running), then run php-fpm, and all is happy. This suggests that a good way to diagnose php-fpm is to first make sure php-cgi is working.		Tried [[PHP-FPM]] again. It initially was giving a 502 Gateway Error, but then I realized I had reconfigured it to use a socket rather than a port. Change that, and you get a notice in the error log if something else is hogging the port (this is good). Make sure nothing else is (i.e. kill php-cgi if you had it running), then run php-fpm, and all is happy. This suggests that a good way to diagnose php-fpm is to first make sure php-cgi is working.

			However, nginx was acting as if the browser was refusing cookies. This turned out to be a problem with the session file storage; phpinfo.php revealed that it was trying to put this in a library folder. I changed /etc/php5/fpm/php.ini to point session.save_path at /tmp instead. then restarted php-fpm.

	==Background==		==Background==

Woozle: php-fpm working now

2012-06-24T20:27:09Z

php-fpm working now

← Older revision		Revision as of 20:27, 24 June 2012
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	After that. simple PHP pages would load but MediaWiki still would not. Examination of nginx's error.log revealed sufficient clues to point to the fact that LocalSettings.php had somehow been read-protected for everyone except the owner; making it world-readable fixed that problem and rendered the wiki fully accessible.		After that. simple PHP pages would load but MediaWiki still would not. Examination of nginx's error.log revealed sufficient clues to point to the fact that LocalSettings.php had somehow been read-protected for everyone except the owner; making it world-readable fixed that problem and rendered the wiki fully accessible.
			===2012-06-24===
			Trying to make the php-cgi process autoloading and auto-recovering when it crashes...

			Uninstalled [[wikipedia:spawn-fcgi\|spawn-fcgi]] because I don't think I'm using it, and I want to try [[wikipedia:lighttpd\|lighttpd]] per Ryan Castellucci's recommendation. ...except that lighttpd turns out to be a web server, not a CGI process manager, which is a route I assume Sai will not want to go.

			Wiki still runs without spawn-fcgi.

			Tried [[PHP-FPM]] again. It initially was giving a 502 Gateway Error, but then I realized I had reconfigured it to use a socket rather than a port. Change that, and you get a notice in the error log if something else is hogging the port (this is good). Make sure nothing else is (i.e. kill php-cgi if you had it running), then run php-fpm, and all is happy. This suggests that a good way to diagnose php-fpm is to first make sure php-cgi is working.

	==Background==		==Background==
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	** '''[[/opt/nginx/conf/scgi_params]]''' - [[wikipedia:Simple Common Gateway Interface\|Simple CGI]] config -- presumably not in use		** '''[[/opt/nginx/conf/scgi_params]]''' - [[wikipedia:Simple Common Gateway Interface\|Simple CGI]] config -- presumably not in use
	* '''/etc/php5/fpm/''' - [[PHP-FPM]] configuration		* '''/etc/php5/fpm/''' - [[PHP-FPM]] configuration
			** '''[[/etc/php5/fpm/php-fpm.conf]]''' - general config file
	** '''[[/etc/php5/fpm/pool.d/www.conf]]''' - config file to actually edit		** '''[[/etc/php5/fpm/pool.d/www.conf]]''' - config file to actually edit

Woozle: /* 2012-06-23 */ link to port listener script; some explanation of what it told me

2012-06-23T22:36:03Z

2012-06-23: link to port listener script; some explanation of what it told me

← Older revision		Revision as of 22:36, 23 June 2012
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	No change. Removed line from php.ini.		No change. Removed line from php.ini.

	SCRIPT_FILENAME is set to a filespec which includes $document_root (this is apparently [http://wiki.nginx.org/Pitfalls#FastCGI_Path_in_Script_Filename good practice]).		[[User:Woozle/port listener\|This script]] indicates that nginx is passing only ''relative'' filepaths (just the part after the domain name), not the base folder to use in calculating the complete filespec. PHP needs to know the complete filespec.

			nginx's SCRIPT_FILENAME FastCGI parameter is set to a filespec which includes $document_root (this is apparently [http://wiki.nginx.org/Pitfalls#FastCGI_Path_in_Script_Filename good practice]).

	$document_root is set by nginx's [http://nginx.org/en/docs/http/ngx_http_core_module.html#root root] directive.		$document_root is set by nginx's [http://nginx.org/en/docs/http/ngx_http_core_module.html#root root] directive.
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	After that. simple PHP pages would load but MediaWiki still would not. Examination of nginx's error.log revealed sufficient clues to point to the fact that LocalSettings.php had somehow been read-protected for everyone except the owner; making it world-readable fixed that problem and rendered the wiki fully accessible.		After that. simple PHP pages would load but MediaWiki still would not. Examination of nginx's error.log revealed sufficient clues to point to the fact that LocalSettings.php had somehow been read-protected for everyone except the owner; making it world-readable fixed that problem and rendered the wiki fully accessible.

	~~I should post the script I used to determine what nginx was sending via the CGI port; it was helpful in isolating the problem.~~

	==Background==		==Background==

Woozle: problem solved

2012-06-23T22:25:55Z

problem solved

← Older revision		Revision as of 22:25, 23 June 2012
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	From what I can tell, this means that PHP is not receiving the name of the script it is supposed to run, and this is supposed to be passed in the SCRIPT_FILENAME environment variable. Trying to figure out how to do that on the nginx end.		From what I can tell, this means that PHP is not receiving the name of the script it is supposed to run, and this is supposed to be passed in the SCRIPT_FILENAME environment variable. Trying to figure out how to do that on the nginx end.

			No progress on that... but at least one source suggests that setting PHP's [http://us2.php.net/manual/en/ini.core.php#ini.open-basedir open_basedir] option may help. Though this would be a kluge if it worked (and would prevent us from using PHP on the main site), it would also help narrow down the problem. So, added to php.ini:
			open-basedir = /home/mylwiki/wiki.makeyourlaws.org

			No change. Removed line from php.ini.

			SCRIPT_FILENAME is set to a filespec which includes $document_root (this is apparently [http://wiki.nginx.org/Pitfalls#FastCGI_Path_in_Script_Filename good practice]).

			$document_root is set by nginx's [http://nginx.org/en/docs/http/ngx_http_core_module.html#root root] directive.

			Finally kluged nginx.conf by adding this line after the fastcgi_params include:
			fastcgi_param SCRIPT_FILENAME /home/mylwiki/wiki.makeyourlaws.org$fastcgi_script_name;

			After that. simple PHP pages would load but MediaWiki still would not. Examination of nginx's error.log revealed sufficient clues to point to the fact that LocalSettings.php had somehow been read-protected for everyone except the owner; making it world-readable fixed that problem and rendered the wiki fully accessible.

			I should post the script I used to determine what nginx was sending via the CGI port; it was helpful in isolating the problem.

	==Background==		==Background==

Woozle: progress, but no cigar yet

2012-06-23T18:35:57Z

progress, but no cigar yet

← Older revision		Revision as of 18:35, 23 June 2012
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	So, how can we determine if PHP-FPM is receiving the page request?		So, how can we determine if PHP-FPM is receiving the page request?

			Set "log_level = debug" in {{l/sub\|pfx=/etc/php5/fpm/\|php-fpm.conf}}. Evidence would seem to indicate that PHP-FPM is not receiving page requests from nginx. (Reset logging back to default level and restarted PHP-FPM.)

			Stopped PHP-FPM. Reloading http://wiki.makeyourlaws.org/phpinfo.php now receives a "502 Bad Gateway" error. Running "php-cgi -b 127.0.0.1:9000" seems to be successful, and now the page just displays "No input file specified.".

			From what I can tell, this means that PHP is not receiving the name of the script it is supposed to run, and this is supposed to be passed in the SCRIPT_FILENAME environment variable. Trying to figure out how to do that on the nginx end.

	==Background==		==Background==

Woozle: /* Notes */ 6/23

2012-06-23T15:15:42Z

Notes: 6/23

@@ Line 12: / Line 12: @@
 ===2012-06-21===
 Looks like the package "spawn-fcgi" may be the part of FastCGI that I need to install, extrapolating from [http://web.archive.org/web/20100208231201/http://www.johnyerhot.com/2008/02/12/how-to-nginx-fcgi-php-mysql-ruby-on-rails-rewrite-vhosts/ this]. Installing it...
 ==Background==
 * '''Distro''': Ubuntu 10.04.4 LTS

Woozle: scgi_params

2012-06-23T15:01:14Z

scgi_params

← Older revision		Revision as of 15:01, 23 June 2012
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	** '''[[/opt/nginx/conf/nginx.conf]]''' - master config file		** '''[[/opt/nginx/conf/nginx.conf]]''' - master config file
	** '''[[/opt/nginx/conf/fastcgi.conf]]''' - [[FastCGI]] config file		** '''[[/opt/nginx/conf/fastcgi.conf]]''' - [[FastCGI]] config file
			** '''[[/opt/nginx/conf/scgi_params]]''' - [[wikipedia:Simple Common Gateway Interface\|Simple CGI]] config -- presumably not in use
	* '''/etc/php5/fpm/''' - [[PHP-FPM]] configuration		* '''/etc/php5/fpm/''' - [[PHP-FPM]] configuration
	** '''[[/etc/php5/fpm/pool.d/www.conf]]''' - config file to actually edit		** '''[[/etc/php5/fpm/pool.d/www.conf]]''' - config file to actually edit
Line 49:		Line 50:
	-rw------- 1 root root 0 2012-04-23 16:29 nginx.conf.save		-rw------- 1 root root 0 2012-04-23 16:29 nginx.conf.save
	-rw-r--r-- 1 root root 4208 2012-04-23 16:29 nginx.conf.save.1		-rw-r--r-- 1 root root 4208 2012-04-23 16:29 nginx.conf.save.1
	-rw-r--r-- 1 root root 544 2011-12-02 22:52 scgi_params		-rw-r--r-- 1 root root 544 2011-12-02 22:52 {{l/sub\|pfx=/opt/nginx/conf/\|scgi_params}}
	-rw-r--r-- 1 root root 544 2012-04-22 04:41 scgi_params.default		-rw-r--r-- 1 root root 544 2012-04-22 04:41 scgi_params.default
	-rw-r--r-- 1 root root 570 2011-12-02 22:52 uwsgi_params		-rw-r--r-- 1 root root 570 2011-12-02 22:52 uwsgi_params

Woozle: /* File Locations */ another link to new conf page

2012-06-22T18:21:13Z

File Locations: another link to new conf page

← Older revision		Revision as of 18:21, 22 June 2012
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	* '''/opt/nginx/''' - configuration and logging folders		* '''/opt/nginx/''' - configuration and logging folders
	** '''[[/opt/nginx/conf/nginx.conf]]''' - master config file		** '''[[/opt/nginx/conf/nginx.conf]]''' - master config file
			** '''[[/opt/nginx/conf/fastcgi.conf]]''' - [[FastCGI]] config file
	* '''/etc/php5/fpm/''' - [[PHP-FPM]] configuration		* '''/etc/php5/fpm/''' - [[PHP-FPM]] configuration
	** '''[[/etc/php5/fpm/pool.d/www.conf]]''' - config file to actually edit		** '''[[/etc/php5/fpm/pool.d/www.conf]]''' - config file to actually edit

	===Folder Listings===		===Folder Listings===
	* '''/opt/nginx'''		* '''/opt/nginx'''

Woozle: /* Folder Listings */ fastcgi.conf link

2012-06-22T18:16:57Z

Folder Listings: fastcgi.conf link

Woozle: 6/21: installed spawn-fcgi

2012-06-22T15:54:17Z

6/21: installed spawn-fcgi

← Older revision		Revision as of 15:54, 22 June 2012
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	* nginx somehow receives a success code, and logs the request as successful (http code 200) returning a result of zero bytes.		* nginx somehow receives a success code, and logs the request as successful (http code 200) returning a result of zero bytes.
	* The web browser displays a blank page.		* The web browser displays a blank page.
			==Notes==
			===2012-06-21===
			Looks like the package "spawn-fcgi" may be the part of FastCGI that I need to install, extrapolating from [http://web.archive.org/web/20100208231201/http://www.johnyerhot.com/2008/02/12/how-to-nginx-fcgi-php-mysql-ruby-on-rails-rewrite-vhosts/ this]. Installing it...
	==Background==		==Background==
	* '''Distro''': Ubuntu 10.04.4 LTS		* '''Distro''': Ubuntu 10.04.4 LTS

← Older revision		Revision as of 18:16, 22 June 2012
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	* '''/opt/nginx/conf'''		* '''/opt/nginx/conf'''
	*: total 80		*: total 80
	-rw-r--r-- 1 root root 979 2011-12-02 22:52 fastcgi.conf		-rw-r--r-- 1 root root 979 2011-12-02 22:52 {{l/sub\|pfx=/opt/nginx/conf/\|fastcgi.conf}}
	-rw-r--r-- 1 root root 979 2012-04-22 04:41 fastcgi.conf.default		-rw-r--r-- 1 root root 979 2012-04-22 04:41 fastcgi.conf.default
	-rw-r--r-- 1 root root 909 2011-12-02 22:52 fastcgi_params		-rw-r--r-- 1 root root 909 2011-12-02 22:52 fastcgi_params
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	-rw-r--r-- 1 root root 3362 2011-12-02 22:52 mime.types		-rw-r--r-- 1 root root 3362 2011-12-02 22:52 mime.types
	-rw-r--r-- 1 root root 3463 2012-04-22 04:41 mime.types.default		-rw-r--r-- 1 root root 3463 2012-04-22 04:41 mime.types.default
	-rw-r--r-- 1 root root 6651 2012-06-10 18:50 nginx.conf		-rw-r--r-- 1 root root 6651 2012-06-10 18:50 {{l/sub\|pfx=/opt/nginx/conf/\|nginx.conf}}
	-rw-r--r-- 1 root root 2685 2012-04-22 04:41 nginx.conf.default		-rw-r--r-- 1 root root 2685 2012-04-22 04:41 nginx.conf.default
	-rw------- 1 root root 0 2012-04-23 16:29 nginx.conf.save		-rw------- 1 root root 0 2012-04-23 16:29 nginx.conf.save
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	-rw-r--r-- 1 root root 570 2012-04-22 04:41 uwsgi_params.default		-rw-r--r-- 1 root root 570 2012-04-22 04:41 uwsgi_params.default
	-rw-r--r-- 1 root root 3610 2012-04-22 04:41 win-utf		-rw-r--r-- 1 root root 3610 2012-04-22 04:41 win-utf

	==Links==		==Links==
	* [https://plus.google.com/100183759660923071401/posts/W1sJmF77gTY discussion]		* [https://plus.google.com/100183759660923071401/posts/W1sJmF77gTY discussion]