Apache :: HTTP Load Balancer File Does Not Exist Exception
Mar 5, 2013
I am using single Apache HTTP Server (2.2.23) as a Load Balancer with two IBM Websphere application server nodes (other machines). I have deployed the simple text based helloWorld application and it works fine with load balancer. But When I deploy the real application that contains images,css file , java script file. It loads the page without images and show me simple text and gives me the following Exception on error_logs and similar kind of exceptions
[error] [client 192.217.71.77] File does not exist: /usr/local/apache2/htdocs/application, referer: http://192.168.141.17/application/faces/test.jsp
Interestingly, when I access the application without load balancer, it also works fine.
Here are the load balancer settings
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May 30, 2013
I have a setup where Apache connects to a F5 load balancer which in turn balances between two jboss app servers.
Apache using mod_proxy -> F5 (hardware load balancer) -> 2 jboss application server
It uses jsessionid. I sometimes get 500 errors for the post methods. I think the request goes to the incorrect jboss server because of the F5 load balancer. Everything works just right when I shutdown one of the jboss app servers.
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Feb 9, 2008
My error logs say the following:
[Wed Jan 30 22:31:33 2008] [error] [client 150.101.99.206] File does not exist: /home/soupnazi/public_html/404.shtml
[Wed Jan 30 22:31:33 2008] [error] [client 150.101.99.206] File does not exist: /home/soupnazi/public_html/favicon.ico
[Wed Jan 30 22:29:36 2008] [error] [client 150.101.99.206] File does not exist: /home/soupnazi/public_html/404.shtml
[Wed Jan 30 22:29:36 2008] [error] [client 150.101.99.206] File does not exist: /home/soupnazi/public_html/favicon.ico
[Wed Jan 30 22:27:18 2008] [error] [client 150.101.99.206] File does not exist: /home/soupnazi/public_html/404.shtml
[Wed Jan 30 22:27:18 2008] [error] [client 150.101.99.206] File does not exist: /home/soupnazi/public_html/favicon.ico
[Wed Jan 30 22:26:48 2008] [error] [client 150.101.99.206] File does not exist: /home/soupnazi/public_html/404.shtml
[Wed Jan 30 22:26:48 2008] [error] [client 150.101.99.206] File does not exist: /home/soupnazi/public_html/favicon.ico
[Wed Jan 30 22:26:47 2008] [error] [client 150.101.99.206] File does not exist: /home/soupnazi/public_html/500.shtml
[Wed Jan 30 22:26:47 2008] [alert] [client 150.101.99.206] /home/soupnazi/public_html/Dolphin/.htaccess: Invalid command 'php_flag', perhaps misspelled or defined by a module not included in the server configuration
[Wed Jan 30 22:20:21 2008] [error] [client 150.101.99.206] File does not exist: /home/soupnazi/public_html/404.shtml
[Wed Jan 30 22:20:21 2008] [error] [client 150.101.99.206] File does not exist: /home/soupnazi/public_html/favicon.ico
[Wed Jan 30 22:20:19 2008] [error] [client 150.101.99.206] File does not exist: /home/soupnazi/public_html/500.shtml
Apache/1.3.41 (Unix) PHP/4.4.7 mod_log_bytes/1.2 mod_bwlimited/1.4 mod_auth_passthrough/1.8 FrontPage/5.0.2.2635 mod_ssl/2.8.30 OpenSSL/0.9.7a
I need to delete that file its huge.
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Oct 31, 2009
How to Remove Apache File Not Exist Errors
Here is the Reply of the Sys Admin
Dear Customer,
I am sorry. We are not able to resolve the File Does Not Exist errors for you. You have to do it own.
The unique errors that you have today for Apache are as follows:
client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23): /w00tw00t.at.ISC.SANS.DFind
File does not exist: /usr/local/apache/htdocs
File does not exist: /usr/local/apache/htdocs/501.shtml
File does not exist: /usr/local/apache/htdocs/images, referer:
[url]
File does not exist: /usr/local/apache/htdocs/jailbreak-iphone-3-0-1-with-redsn0w
File does not exist: /usr/local/apache/htdocs/robots.txt
Invalid method in request x16x03x01
Invalid method in request x80bx01x03x01
# Invalid URI in request alt="Follow%20via%20FreiendFFeed"%20title="Follow%20via%20FriendFeed"%20border="0"%20height="16"%20width="16"%20/>Home
Top%20StuffiPhoneWindows%207FirefoxVistaTipsWordpressSubscribeSitemapAdvertise xc2xa0xc2xa0xc2xa0Vertical1240899%20=%20false;ShowAdHereBanner1240899%20=%20true;RepeatAll1240899%20=%20false;NoFollowAll1240899%20=%20false;Ban nerStyles1240899%20=%20new%20Array(%20%20%20%20"a{display:block;font-size:11px;color: HTTP/1.1
PHP Fatal error: Call to a member function get() on a non-object in /home/technob2/public_html/wp-includes/cache.php on line 93
PHP Fatal error: Call to a member function get() on a non-object in /home/technob2/public_html/wp-includes/cache.php on line 93, referer:
[url]
PHP Fatal error: Call to a member function get() on a non-object in /home/technob2/public_html/wp-includes/cache.php on line 93, referer:
[url]
PHP Fatal error: Call to a member function get() on a non-object in /home/technob2/public_html/wp-includes/cache.php on line 93, referer:
[url]
PHP Fatal error: Call to a member function get() on a non-object in /home/technob2/public_html/wp-includes/cache.php on line 93, referer:
[url]
request failed: error reading the headers
I would advise that you resolve as many of these errors as you are able.
As to what caused the load on your server, I can't say. There is nothing in your logs to indicate the source of the problem. During the 1PM period when your server overloaded last there were only 29 errors in Apache. The errors that occurred during this time would not cause excessive load.
I have installed a script to monitor your server. If this load issue occurs again within one week or before your next reboot, whichever comes first, we should be able to determine the source from the script's logs in /var/log/sys-snap.sh.
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Nov 22, 2013
I am tried to integrate Apache HTTP server and JBoss app server 7 with mod_jk module plugin in Apache.I have two instances of Jboss running and Apache server sends requests to them.I have added following code in "httpd.conf" of Apache:
Code:
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_connect_module modules/mod_proxy_connect.so
LoadModule proxy_http_module modules/mod_proxy_http.so
JkWorkersFile "D:/Program Files/Apache Group/Apache2/conf/workers.properties"
JkShmFile "D:/Program Files/Apache Group/Apache2/logs/mod_jk.shm"
JkLogFile "D:/Program Files/Apache Group/Apache2/logs/mod_jk.log"
[Code] ....
But, though I have configured this way, when my worker1 goes down,Apache is not sending requests to worker2 and I get "Service Temporarily Unavailable" message.
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Mar 29, 2013
The problem is that HTTP file download speed is nearly 10 times lower than FTP download speed. What could be limiting it? It's about 7Mb for FTP and 70-100Kb for HTTP. Strangely, download speed is OK when browsing from the server itself (e.g. via RDP)
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Feb 23, 2008
Im currently looking around for a Load Balancer within the budget of about £2,500
Anyone have any suggestions?
Will that budget get me one that will do the job or would I be wasting my money and should maybe save up some more cash?
Setup:
2x Web Servers
1x DB Server
1x Storage / Media Servers
*Expanding to 3/4x Web Servers, 2x DB Servers, 2x Storage / Media Servers*
I have been looking at:
F5 BIG IP D25 Load Balancer
[url]
and
F5 BIG IP D30 Load Balancer
[url]
But im unsure on what the difference between these are? as I cant seem to find there specs and what they can / cant do..
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Apr 20, 2007
Anyone know of a good load balancer for Linux that is able to not only distribute load evenly amongst many servers, but one that's able to allocate servers based on the resource?
For instance:
I want www.mysite.com/dogs to be load-balanced between servers A, B, and C.
I want www.mysite.com/cats to be load-balanced between servers X, Y, and C.
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Dec 11, 2007
Is there any such solution available?
Something with a failover load balancer that you can assign a static IP address to and it'll sit in front of a number of lowend virtual private servers.
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Sep 5, 2007
I have two servers that I run in Los Angeles (used to host gaming servers for a small community I run) for personal use that seem to be a little jumpy with server performance.
Would a load balancer help with this situation?
And for the n00b question, what exactly is a load balancer.
Very new to hosting servers, so I appreciate a gentle response
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Apr 15, 2008
I wish to build a load balancer on a linux box that will load balance http/https/smtp/pop3 and ftp
what technologies i need to look at?
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May 4, 2008
I'm using Virtuozzo on two server.
1) Can I do this with only ONE Load Balancer?
I wish I could have many "LB", like one for the WWW serveur, an other one for the DB serveur, my "personnal" VPS without LB...
i.e. :
WWW -> SRV1 SRV2
DB1 -> DB1 DB2
EXCESSNET -> EXCESSNET1
Do I need 3 LB to do this or I can do it with only one? The screenshot of Barracuda LB seem to show many "virtual LB", so I guest it's a yes?
2) So... it's service only?
On the Barracuda and some page, they are talking about "service" and not "server" LB. Can I LB a whole serveur ? Like all service from an IP xxx.xxx.xxx.234 to a server ? Or I can only do "HTTP -> SRV1" "DNS -> SRV1"? If no, what happen to service that the LB didn't know (like cPanel)?
3) An Internal Network? what About cPanel?
According to my search, LB are working like this:
EXTERNAL IP of SERVICE (xxx.xxx.xxx.200) -> INTERNAL IP SERVER 1(10.0.0.25), INTERNAL IP SERVER 2 (10.0.0.26)
So, I need to configure the server with an Internal IP cause else, it will conflit on the "local network". The probleme is, cPanel will be using the "Internal IP" to make all of his configuration... so if a user add a new website, he will configure it with 10.0.0.25, this won't since the external IP will be xxx.xxx.xxx.200 and Apache won't anwser to this virtual host. What can I do?
Can I do this ? (same internal IP as the external?)
EXTERNAL IP (70.234.125.123) -> SERVER 1 INTERNAL IP (70.234.125.123), SERVER 2 INTERNAL IP (10.0.0.26)
If yes, I will configure the second serveur without cPanel and only sync the configuration and files. So in case of "crash" of the server 1, cPanel won't be working, but website won't be down...
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May 9, 2008
We are planning for a clustering archirecture for our mail servers,The basic idea is put all of mailservers behind a load balancer which will monitor and distribute the n/w load as server load and forward the requests accordingly can u suggest any good hardware loadbalancer which could give us 'server load balancing' as well as n/w load balacing.
I would also like to know if it is a good idea to go for a software load balancer(like linux heartbeat) or to h/w load balancer.
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Mar 8, 2008
traffic has been surging lately and is expected to continue surging. i am already on the fastest chipset my webhost has.
current configuration
single server (centos), webserver (apache), single filesystem. many dynamic pages (perl script) but no mysql database. no php.
ideal configuration
multiple webservers (apache), single file system.
assuming my scripts do not write to the filesystem (read only), what do i need to install or do in order to send a request for www.domain.com to server1.domain.com or server2.domain.com or server3.domain.com according to the load of each? it should look the same at the front end. anyone know what i need to get?
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Mar 27, 2008
if it is possible to hide the Barracuda Load Balancer signature in headers ?
If you check here : [url]
or do a telnet 80 to that same FQDN and send "HEAD / HTTP/1.0" + "RETURN" you will be able to see in the headers the server signature (BarracudaHTTP 1.00).
Is there any way to hide this?
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May 23, 2007
I'm trying to find a solution but without any result so far,
This is the story:
We have too server in Israel, in one server we have:
Win 2003 STR that use for IIS (IBM RAID 5)
And in the second we have:
Win 2003 STR + SQL SERVER 2005 workgroup.
After 1 year running in Israel we like to go out to the world with our products.
This is what I think we need to do but we still don't figure how to that:
1. Still use the same server in Israel.
2. Buy more server outside Israel, Lets say UK and set a Load Balancer between the server in UK to Israel (both IIS and SQL).
3. In the Load balancer we like to set that if the user come from europe you will go to the server in UK and if he come from Israel you go the server there.
4. If one of the server we be go down all the the users will sends to the server outside there country.
5. In the future we like to add more server in the world on the same setting.
What do you say? how can I do something like that?
What company are dealing stuff like that?
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Feb 22, 2008
Anyone know of a hardware load balancer that can load balance my apache and mysql using one device? I mean right now I can use the ultra monkey for the load balancer the cluster mysql. But I want to go hardware.
I was thinking of F5 BIGIP? will that work? anyone know Please give me some choices..
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Jul 17, 2008
I am thinking of using a Load Balancer + serveral VPSs solution.
Is there any good recommendation ? It would be great if the hosting company can provide the load banlancer for free.
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Aug 4, 2014
We got exception in Apache 2.4.9 Eventviewer
Faulting application name: httpd.exe, version: 2.4.9.0, time stamp: 0x5326c43e
Faulting module name: libapr-1.dll, version: 1.5.0.0, time stamp: 0x5326c4ed
Exception code: 0xc0000005
Fault offset: 0x000091b4
[Code] ....
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Nov 26, 2008
is there a low end server just designed for receiving and sending large audio and media files?
like CPU should be minimal, as long as it can send and receive large files to and from a main server which has apache + php + mysql running in it...
would this be cost effective?
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Oct 15, 2014
I have a short question concerning Mod Balancer and Stickiness:
At the moment I am achieving stickiness with a cookie.
Header add Set-Cookie "ROUTEID=.%{BALANCER_WORKER_ROUTE}e; path=/" env=BALANCER_ROUTE_CHANGED
However, I am getting complaints by users which do not allow coockies in their browser settings that my page does not work properly.
Is there any way to achieve Stickiness with out cookies (e.g. add the information to the URL or something like that)?
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Apr 23, 2015
I'm using mod_proxy_balancer in Apache 2.2.29 with OpenSSL on Windows to distribute HTTPS requests to two other back end servers, both of which are also Apache 2.2.29 with OpenSSL on Windows.
DumpIO shows that the requests are being decrypted on the balancer, and then sent unencrypted to the two workers. I would like to have the requests pass through the balancer without decrypting there, and let the two back end worker servers do the decryption. Is that possible? If so, how?
When I tried simply disabling SSL on the balancer, the requests fail, with nothing logged at all.
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May 25, 2007
Code:
[Wed May 23 15:58:24 2007] [error] [client ::1] File does not exist: /htdocs
[Wed May 23 15:58:25 2007] [error] [client ::1] File does not exist: /htdocs
[Wed May 23 15:58:26 2007] [error] [client ::1] File does not exist: /htdocs
[Wed May 23 15:58:27 2007] [error] [client ::1] File does not exist: /htdocs
I'm getting a TON of these in my Apache Error log. Is this just bots? Any way to stop them?
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Jan 5, 2015
Since the update to #30 two separate installs on Ubuntu 14.04.1 LTS I'm getting the below error :
Internal error: The directory does not exist "admin"Click to expand...
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Jul 4, 2007
I have moved my sites from old server with Apache 1.3 to new one with Apache 2.2.4. Since that time, the error log is full of these lines:
Code:
[Wed Jul 04 05:36:32 2007] [error] [client 212.47.9.194] File does not exist: /home/domain/public_html/russia
[Wed Jul 04 05:36:39 2007] [error] [client 212.47.9.194] File does not exist: /home/domain/public_html/russia
[Wed Jul 04 05:36:45 2007] [error] [client 213.192.18.2] File does not exist: /home/domain/public_html/italy
[Wed Jul 04 05:36:57 2007] [error] [client 83.8.104.181] File does not exist: /home/domain/public_html/mexico
The access logs show even more accesses, so sometimes the same page is ok, sometimes it is logged here. The strange thing is that these files (pages) exist! They are accessible through the browser without any problem.
Do you have any idea where could be the problem? It would helped me lot, I am unable to find any real problem now, when error log is full of these.
My OS is Ubuntu 6.06. I use mod_rewrite through .htaccess. I can provide list of apache modules, if it helps.
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Nov 26, 2008
to display the server load average through HTTP. How may I do that?
Please note that I have all insecure functions disabled, such as exec, system, etc... But I have root access.
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Dec 18, 2007
I am getting this error and I just installed apache 2.2 and added a user using useradd user. When i added into the virtual which is:
NameVirtualHost *:80
<VirtualHost *:80>
DocumentRoot /home/user/public_html
ServerName user.com
</VirtualHost>
It does not find the public_html folder I added. Is this a permissions problem? or something else?
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Nov 15, 2013
Server Version: Apache/2.2.22 (Unix)
On our production service, we've been getting numerous malformed POST requests to some of our CGI scripts that are showing up as 500 errors in our logs. They are malformed in the sense that the actual content length doesn't match the Content-Length specified in the request.
Here's the most trivial example I can come up with that reproduces the problem for us:
POST /some_valid_alias HTTP/1.1
Host: example.org
User-Agent: Arbitrary/1.0
Content-Type: multipart/form-data; boundary=---------------------------41184676334
Content-Length: 769
-----------------------------41184676334
In addition to the 500 error in the access log, we see the corresponding error in the error log:
(70014)End of file found: Error reading request entity data
Based on the nature of the POST request and the error response, it does appear that Apache is doing the right thing here.
The POST never actually makes it as far as the script being targeted (/some_valid_alias in the above example); in other words, Apache returns 500 to the client, writes the error to the error log and never executes the script.
Is there a way to capture/avoid internal Apache errors like 70014, and return some other HTTP status besides 500 (like 403)? It's particularly annoying in our case, because our server sends us an email for all 500 errors.
So far, our best "defense" against these 500 errors is to disallow POST for these aliases, which normally just ignore the POST data anyway (when the request is not malformed):
RewriteCond %{REQUEST_METHOD} ^POST$
RewriteRule ^/(some_valid_alias)(.*)$ $1$2 [R]
But this won't work for all our scripts, because in some cases we do want to permit POST.
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Aug 14, 2007
This can be adapted to other operating systems, for the scope of this tutorial it will be designed for Redhat enterprise / Centos ....
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