Apache/PHP does not show images after refeshing website

lamletoi · 10-22-2014, 10:32 PM

I am receiveing a matter with my web server . I am hosting a DirectAdmin and Nginx at port 80 Reverse Proxy for Apache . When users continously access the sites(all sites) and make continously refresh. The site will be error :

Code:

No data received

Unable to load the webpage because the server sent no data.
Error code: ERR_EMPTY_RESPONSE

This log is show on browser, there is no log in server
How can i avoid this. I have a firewall(iptables) but i did not block any SYN connection with a time limitation. I also disable the firewall for test but no lucky.

I think it involve to the Nginx or Apache configuration but i have not tuned anything for nginx and apache jet. Thanks,

dubnik · 10-23-2014, 02:09 AM

if theres no web server logs it looks like a browser problem try different browser, delete hisotry...etc

lamletoi · 10-23-2014, 03:52 AM

Thanks dubnik,
But i check with all browsers and this error was noticed by my customer.
I think there is some way to config the apache or nginx.
I have turn KeepAlive On,MaxKeepAliveRequests=200 and KeepAliveTimeout 100 but no lucky.
There is no log in nginx as well as apache for me to post here(because i think its not an error...)

dubnik · 10-23-2014, 04:01 AM

it has nothing to do with web server, apache will log if it has some problem, maybe problems with php, zend optimizer and stuff like this.

lamletoi · 10-23-2014, 05:00 AM

Yes,
I think it maybe involve something like Zend.
I am using Opcache :

Code:

Overview

44%
memory usage

96%
hit rate

total memory: 512.000MB

used memory: 227.760MB

free memory: 284.240MB

wasted memory: 0.000 bytes (0%)

number of cached files: 1,782

number of hits: 48,186

number of misses: 1,782

blacklist misses: 0

number of cached keys: 2,305

max cached keys: 524,521

Enable real-time update of stats
General info
Zend OPcache 	7.0.3
PHP 	5.3.29
Host 	sv01.xxx.xx
Server Software 	Apache/2
Start time 	2014-10-20 03:42:06
Last reset 	never
Directives
blacklist filename 	no value
consistency checks 	no value
dups fix 	false
enable 	true
enable cli 	true
enable file override 	false
error log 	no value
fast shutdown 	true
force restart timeout 	180
inherited hack 	true
load comments 	true
log verbosity level 	1
max accelerated files 	400000
max file size 	no value
max wasted percentage 	0.05
memory consumption 	536870912
optimization level 	4294967295
preferred memory model 	no value
protect memory 	false
revalidate freq 	60
revalidate path 	false
save comments 	true
use cwd 	true
validate timestamps 	true

dubnik · 10-23-2014, 05:13 AM

try to disable zend optimizer and check if the error still appears.

And what php application is running on web server?(cms, your php site...)
Did you update something before error appears? (php version for example)

lamletoi · 10-23-2014, 06:00 AM

No lucky when i disabled Zend OpCache :
My sites are using wordpress.
After DirectAdmin setup the server with their script.i did not do update.

Code:

PHP 5.3.29 (cli) (built: Oct  4 2014 21:09:06) 
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2014 Zend Technologies

dubnik · 10-23-2014, 06:18 AM

another idea try to check your .htaccess if there is not some problem with redirection

lamletoi · 10-23-2014, 07:29 AM

deleted

dubnik · 10-23-2014, 09:57 AM

it's definitely problem with wordpress (plugin bug, wrong .htaccess etc...) There're many solutions on google ... so try and you will find where's problem.
There's nothing wrong with web services.