Apache 2.4 + php-fpm - AH01071: Got error 'Primary script unknown\n' mod_proxy_balancer

php mod-proxy apache2.4 mod-proxy-balancer
user3742266 picture user3742266 · Jun 15, 2014 · Viewed 19.6k times · Source

I'm configuring an Apache 2.4.9 with php-fpm 5.5.9 in my Ubuntu 14.04. What I want is to make a balancer for the php-fpm requests but It throws the following error:

AH01071: Got error 'Primary script unknown\n'

When I try to access my php file. It seems that proxy balancer doesn't grab the document root passed by ProxyPassMatch to it. I'm using UDS to make apache access the php-fpm sockets instead of using network tcp.

If I configure it without balancer, everything works fine.

WORKS

ProxyPassMatch ^/(.*\.php(/.*)?)$ unix:/var/run/php5-fpm.sock1|fcgi://./var/www/html

NOT WORKS

ProxyPassMatch ^/(.*\.php(/.*)?)$ balancer://localhost/var/www/html
<Proxy balancer://localhost/>
    BalancerMember unix:/var/run/php5-fpm.sock1|fcgi://localhost:9001
    BalancerMember unix:/var/run/php5-fpm.sock2|fcgi://localhost:9002
    BalancerMember unix:/var/run/php5-fpm.sock3|fcgi://localhost:9003
    BalancerMember unix:/var/run/php5-fpm.sock4|fcgi://localhost:9004
</Proxy>

This is the balancer's config log:

[Sun Jun 15 12:32:30.839726 2014] [authz_core:debug] [pid 12217:tid 140330025703168] mod_authz_core.c(828): [client 10.1.1.2:52526] AH01628: authorization result: granted (no directives)
[Sun Jun 15 12:32:30.839899 2014] [lbmethod_byrequests:debug] [pid 12217:tid 140330025703168] mod_lbmethod_byrequests.c(97): AH01207: proxy: Entering byrequests for BALANCER (balancer://localhost)
[Sun Jun 15 12:32:30.839915 2014] [lbmethod_byrequests:debug] [pid 12217:tid 140330025703168] mod_lbmethod_byrequests.c(144): AH01208: proxy: byrequests selected worker "fcgi://localhost:9001" : busy 0 : lbstatus -3
[Sun Jun 15 12:32:30.839929 2014] [proxy_balancer:debug] [pid 12217:tid 140330025703168] mod_proxy_balancer.c(616): [client 10.1.1.2:52526] AH01172: balancer://localhost: worker (fcgi://localhost:9001) rewritten to fcgi://localhost:9001/var/www/html/info.php
[Sun Jun 15 12:32:30.839942 2014] [proxy:debug] [pid 12217:tid 140330025703168] proxy_util.c(1761): AH00924: worker unix:/var/run/php5-fpm.sock1|fcgi://localhost:9001 shared already initialized
[Sun Jun 15 12:32:30.839958 2014] [proxy:debug] [pid 12217:tid 140330025703168] proxy_util.c(1808): AH00927: initializing worker unix:/var/run/php5-fpm.sock1|fcgi://localhost:9001 local
[Sun Jun 15 12:32:30.840004 2014] [proxy:debug] [pid 12217:tid 140330025703168] proxy_util.c(1843): AH00930: initialized pool in child 12217 for (localhost) min=0 max=25 smax=25
[Sun Jun 15 12:32:30.840018 2014] [proxy:debug] [pid 12217:tid 140330025703168] mod_proxy.c(1138): [client 10.1.1.2:52526] AH01143: Running scheme balancer handler (attempt 0)
[Sun Jun 15 12:32:30.840039 2014] [proxy_fcgi:debug] [pid 12217:tid 140330025703168] mod_proxy_fcgi.c(768): [client 10.1.1.2:52526] AH01076: url: fcgi://localhost:9001/var/www/html/info.php proxyname: (null) proxyport: 0
[Sun Jun 15 12:32:30.840058 2014] [proxy_fcgi:debug] [pid 12217:tid 140330025703168] mod_proxy_fcgi.c(775): [client 10.1.1.2:52526] AH01078: serving URL fcgi://localhost:9001/var/www/html/info.php
[Sun Jun 15 12:32:30.840090 2014] [proxy:debug] [pid 12217:tid 140330025703168] proxy_util.c(2094): AH00942: FCGI: has acquired connection for (localhost)
[Sun Jun 15 12:32:30.840102 2014] [proxy:debug] [pid 12217:tid 140330025703168] proxy_util.c(2108): AH02545: FCGI: has determined UDS as /var/run/php5-fpm.sock1
[Sun Jun 15 12:32:30.840115 2014] [proxy:debug] [pid 12217:tid 140330025703168] proxy_util.c(2169): [client 10.1.1.2:52526] AH00944: connecting fcgi://localhost:9001/var/www/html/info.php to localhost:9001
[Sun Jun 15 12:32:30.840134 2014] [proxy:debug] [pid 12217:tid 140330025703168] proxy_util.c(2304): [client 10.1.1.2:52526] AH00947: connected /var/www/html/info.php to localhost:9001
[Sun Jun 15 12:32:30.840272 2014] [authz_core:debug] [pid 12217:tid 140330025703168] mod_authz_core.c(828): [client 10.1.1.2:52526] AH01628: authorization result: granted (no directives)
[Sun Jun 15 12:32:30.842988 2014] [proxy_fcgi:error] [pid 12217:tid 140330025703168] [client 10.1.1.2:52526] AH01071: Got error 'Primary script unknown\n'
[Sun Jun 15 12:32:30.843095 2014] [proxy:debug] [pid 12217:tid 140330025703168] proxy_util.c(2132): AH00943: FCGI: has released connection for (localhost)
[Sun Jun 15 12:32:30.843134 2014] [proxy_balancer:debug] [pid 12217:tid 140330025703168] mod_proxy_balancer.c(670): [client 10.1.1.2:52526] AH01176: proxy_balancer_post_request for (balancer://localhost)
[Sun Jun 15 12:32:30.978315 2014] [authz_core:debug] [pid 12217:tid 140330017310464] mod_authz_core.c(802): [client 10.1.1.2:52526] AH01626: authorization result of Require all granted: granted
[Sun Jun 15 12:32:30.978346 2014] [authz_core:debug] [pid 12217:tid 140330017310464] mod_authz_core.c(802): [client 10.1.1.2:52526] AH01626: authorization result of <RequireAny>: granted
[Sun Jun 15 12:32:30.978387 2014] [core:info] [pid 12217:tid 140330017310464] [client 10.1.1.2:52526] AH00128: File does not exist: /var/www/html/favicon.ico

Answer

matchish picture matchish · Oct 21, 2018

tcpdump can be helpful in this case.

tcpdump port 9001 -A | strings

It will show you where apache try to find your primary file

Related questions

Apache 2.4 + PHP-FPM and Authorization headers

Summary: Apache 2.4's mod_proxy does not seem to be passing the Authorization headers to PHP-FPM. Is there any way to fix this? Long version: I am running a server with Apache 2.4 and PHP-FPM. I am using APC for both …

Read More
How do I check if a string contains a specific word?

Consider: $a = 'How are you?'; if ($a contains 'are') echo 'true'; Suppose I have the code above, what is the correct way to write the statement if ($a contains 'are')?

Read More
Get the full URL in PHP

I use this code to get the full URL: $actual_link = 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF']; The problem is that I use some masks in my .htaccess, so what we see in the URL is not always …

Read More