505 Internal server Error - very difficult to solve

madone · Mar 25, 2008

Hello,

i have the website www.celebirony.com

sporadically it shows me 505 Internal server error, i really don't understand why.

Maybe when there are lot of requests it give me this error but i don't why it give it, maybe for server overload and i don't know how to solve it.

I read all posts and documentations about 505 error.

i have phpsuexec, all directory has 755 chmod , files 644 , chown user:user

apache 2.2.8 , php 5.2.5 , csf firewall installed.

Top command give me

top - 21:06:36 up 23:52, 1 user, load average: 17.50, 15.60, 15.00
Tasks: 165 total, 3 running, 161 sleeping, 1 stopped, 0 zombie
Cpu(s): 18.2% us, 57.6% sy, 24.2% ni, 0.0% id, 0.0% wa, 0.0% hi, 0.0% si
Mem: 1019428k total, 683228k used, 336200k free, 68208k buffers
Swap: 979956k total, 94492k used, 885464k free, 309864k cached

PID USER PR NI %CPU TIME+ %MEM VIRT RES SHR S COMMAND
2266 mysql 21 6 38.2 718:24.91 4.1 68620 40m 2716 S mysqld
21607 celebirony 22 3 5.0 0:00.15 2.3 49020 23m 20m R php
21601 celebirony 18 3 1.7 0:00.05 0.7 50580 6824 3656 S php
21603 celebirony 19 3 1.7 0:00.05 0.7 50424 6784 3620 S php
21612 celebirony 21 3 1.7 0:00.05 0.7 49800 6824 3656 S php

This is the apache file configuration
i add only the lines give you few ideas.. there are thousands lines..

Please help me.. im going crazy

PHP:

CacheEnable mem / CacheEnable fd / MCacheSize 32000 MCacheMaxObjectCount 1640 MCacheMinObjectSize 256 MCacheMaxObjectSize 128000 CacheRoot /usr/local/apache/cache/ CacheEnable disk / CacheDirLevels 5 CacheDirLength 3 # Turn on Expires and set default to 0 ExpiresActive On ExpiresDefault A0 # Set up caching on media files for 1 year (forever?) <FilesMatch "\.(flv|ico|pdf|avi|mov|ppt|doc|mp3|wmv|wav)$"> ExpiresDefault A29030400 Header append Cache-Control "public" Header unset Pragma Header unset Last-Modified Header unset ETag FileETag None </FilesMatch> # Set up caching on media files for 1 week <FilesMatch "\.(gif|jpg|jpeg|png|swf)$"> ExpiresDefault A604800 Header append Cache-Control "public" Header unset Pragma Header unset Last-Modified Header unset ETag FileETag None </FilesMatch> # Set up 2 Hour caching on commonly updated files <FilesMatch "\.(xml|txt|html|js|css)$"> ExpiresDefault A7200 Header append Cache-Control "proxy-revalidate" Header unset Pragma Header unset Last-Modified Header unset ETag FileETag None # Force no caching for dynamic files <FilesMatch "\.(htm|php|cgi|pl)$"> #ExpiresActive Off #Header set Cache-Control "private, no-cache, no-store, proxy-revalidate, no-transform" #Header set Pragma "no-cache" ExpiresDefault A30 Header append Cache-Control "proxy-revalidate" Header unset Pragma Header unset Last-Modified Header unset ETag FileETag None </FilesMatch> EnableSendfile on EnableMMAP on Include "/usr/local/apache/conf/php.conf" Include "/usr/local/apache/conf/mod_bandwidth.conf" Include "/usr/local/apache/conf/modsec2.conf" RLimitMEM 142739797 RLimitCPU 240 ErrorLog logs/error_log DefaultType text/plain KeepAlive On KeepAliveTimeout 2 MaxKeepAliveRequests 1500 ServerTokens Prod HostnameLookups Off AddHandler cgi-script .cgi .pl # prefork MPM StartServers 8 MinSpareServers 16 MaxSpareServers 32 ServerLimit 256 MaxClients 256 MaxRequestsPerChild 500 # worker MPM StartServers 2 MaxClients 150 MaxRequestsPerChild 0 SendBufferSize 131072 <IfModule mime_module> TypesConfig conf/mime.types AddType application/x-compress .Z AddType application/x-gzip .gz .tgz </IfModule> <Location /> SetOutputFilter DEFLATE BrowserMatch ^Mozilla/4 gzip-only-text/html BrowserMatch ^Mozilla/4\.0[678] no-gzip BrowserMatch \bMSIE !no-gzip !gzip-only-text/html SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip dont-vary Header append Vary User-Agent env=!dont-vary </Location> <IfModule mod_rewrite.c> RewriteEngine on </IfModule>

philwebservices · Mar 25, 2008

505 Directory

take a look at your logs , should be at /etc/httpd/logs/error_log and check if there are any premature ended scripts or any libraries missing

try running php -v and check what is the output as well

Cemtey · Mar 25, 2008

seems to be workin for me.

madone · Mar 25, 2008

philwebservices said: ↑

take a look at your logs , should be at /etc/httpd/logs/error_log and check if there are any premature ended scripts or any libraries missing

try running php -v and check what is the output as well
Click to expand...

Errors:

[Wed Mar 26 00:01:07 2008] [error] [client 74.6.8.120] Premature end of script headers: thepage.php
[Wed Mar 26 00:01:14 2008] [error] [client 74.6.8.120] File does not exist: /home/celebirony/public_html/500.shtml
[Wed Mar 26 00:01:21 2008] [error] [client 66.249.70.57] File does not exist: /home/celebirony/public_html/es

[Wed Mar 26 00:04:06 2008] [error] [client 66.249.70.57] File does not exist: /home/celebirony/public_html/it
[Wed Mar 26 00:04:06 2008] [error] [client 66.249.70.57] File does not exist: /home/celebirony/public_html/404.shtml
[Wed Mar 26 00:04:15 2008] [error] [client 64.1.215.162] Premature end of script headers: thepage.php
[Wed Mar 26 00:04:16 2008] [error] [client 66.249.70.57] File does not exist: /home/celebirony/public_html/es
[Wed Mar 26 00:04:16 2008] [error] [client 66.249.70.57] File does not exist: /home/celebirony/public_html/404.shtml
[Wed Mar 26 00:04:22 2008] [error] [client 64.1.215.162] File does not exist: /home/celebirony/public_html/500.shtml
[Wed Mar 26 00:04:42 2008] [error] [client 66.249.70.57] File does not exist: /home/celebirony/public_html/it

php -v give me:

PHP 5.2.5 (cli) (built: Mar 8 2008 04:19:58)
Copyright (c) 1997-2007 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2007 Zend Technologies
with eAccelerator v0.9.5.2, Copyright (c) 2004-2006 eAccelerator, by eAccelerator
with Zend Extension Manager v1.2.0, Copyright (c) 2003-2007, by Zend Technologies
with Zend Optimizer v3.3.0, Copyright (c) 1998-2007, by Zend Technologies

madone · Mar 25, 2008

Cemtey said: ↑

seems to be workin for me.
Click to expand...

Usually the website works well.

After testing it for long sometimes it has issues showing 505 error, i viewed these errors and checked them into the /etc/httpd/logs/error_log file

mtindor · Mar 26, 2008

Check this page out: thepage.php

[Wed Mar 26 00:04:15 2008] [error] [client 64.1.215.162] Premature end of script headers: thepage.php

That particular error message would have been accompanied with a 500 Internal error.

Mike

madone · Mar 26, 2008

mtindor said: ↑

Check this page out: thepage.php

[Wed Mar 26 00:04:15 2008] [error] [client 64.1.215.162] Premature end of script headers: thepage.php

That particular error message would have been accompanied with a 500 Internal error.

Mike
Click to expand...

that page is like the masterpage of the website.
I don't know what i have to check, if this page working always ok, sometimes give that error.

Is it possible this error caused by cookies set ?

Phoenix cg · Mar 26, 2008

could it possibly be an update issues by cpanel? mine automatically updated to an edge release and ive been getting 500 internal server errors all day

madone · Mar 31, 2008

Hello, after view a top command, i see usage of ram memory too high..

940 Mb of 1 giga

Is it possible issues ?
How can i solve it ?

It shows me 500 error when too much usage of memory.

Sindorf · Apr 5, 2008

Maybe it is better to optimize your PHP scripts.

madone · Apr 7, 2008

i optimize a lot php scripts,
i notice the issues is generated only when there are too many requests at the same time.

I tried 7 requests at the same time, from my part.

1 give me portion of the website.
1 give me 500 Internal Server Error
other requests were all done.

---------------------------------------------------------------------------------
Maybe, is there a method to cache the pages requests ?
So it shows the pages as static results.

The first time you open the page you will see dinamically content, after other users see the same page as static, maybe it loads less more than using always php scripts and mysql interaction.

cPanelDavidG · Apr 7, 2008

madone said: ↑

...
Maybe, is there a method to cache the pages requests ?
So it shows the pages as static results.

The first time you open the page you will see dinamically content, after other users see the same page as static, maybe it loads less more than using always php scripts and mysql interaction.
Click to expand...

That's actually a fairly common technique for application-level caching in PHP. I believe Smarty Templates has this functionality built-in and enabled by default and some third party scripts now have plug-ins for such functionality (e.g. WP-Cache for WordPress).

madone · Apr 7, 2008

already has caching with eaccelerator and memcache diskcache in apache,
now i am looking for other kind of software to install and improve performance.

Like memcached, libevent.

Putting keepalive off in apache it sends less errors.

Please help me.

Maybe i will use a new system like a scalable cdn.

I think my dedicated server isn't very good for this such of usage.

What you think about scalable cdn, someone use it ?

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505 Internal server Error - very difficult to solve

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505 Internal server Error - very difficult to solve

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madone Member

cPanelDavidG Technical Product Specialist

madone Member

500 Internal Server Error - Request exceeded the limit of 10 internal redirects

500 Internal Server error with php file

Internal Server Error 500

Internal Server Error installing reseller Plugin

500 Internal Server Error: UID of script smaller than min_uid

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