Solved

coldfusion semaphore and high traffic

Posted on 2000-03-14
4
328 Views
Last Modified: 2013-12-20
Hi All,
  Does coldfusion require shared memory?
I am getting this error "timeout waiting for
request semaphore".  I also get this error:
"This server is unable to fullfill you request
due to extremely high traffic".

I always have to restart coldfusion.

Thanks in advance.
0
Comment
Question by:siunix
4 Comments
 
LVL 5

Expert Comment

by:nathans
ID: 2617173
hmmm Where is this Web Server?

0
 

Author Comment

by:siunix
ID: 2617198
this webserver is intranet;
you cannot access to it.
it has cf4.0 runs on solaris 2.6.

Do you know what the errors above mean?
0
 
LVL 1

Expert Comment

by:chaduka
ID: 2639654
I sometimes have similar problems (excluding the semaphore one) and I have heard that I might want to index my huge databases for faster performances on the backend. You may also want to enable the Keep-Alive feature on your webserver and increase the number of simultaneous connections.

(donno if this really helps but ... *shrug*)

Regarding semaphore problems in CF, you might get a laugh reading this article (and its related articles) http://www.4guysfromrolla.com/webtech/030200-1.shtml

Have fun!
0
 
LVL 1

Accepted Solution

by:
cfmrulez earned 100 total points
ID: 2723757
Siunix,

'Request Time Out' problems starts appearing in heavy load situations. Basically, it indicates that ColdFusion is handling more threads than it can. This situation becomes in the more agresive 'Semaphore' errors.

The first thing you must test is why your ColdFusion load is too high. It can be from a bad developed module until some problem with database. You must fix it.

Try to increase the number of threads your server can handle. Allaire recomends 2x number of CPUs, you can, safety, put a value of 6x number of CPUs when working in dual processor environments. Also, putting the request timeout in about 15-20 seconds will help you.

All is dependant on the nature of your application.

Hope this helps,
cfmrulez!
0

Featured Post

Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Firewall Speed Issue 6 68
how can I backup my incomplete website from hostgator? 3 63
Has my website been infiltrated? 21 64
Why is my Splunk Web URL not working? 2 65
When setting up new project requests for our site, one of the most powerful tools our team has available to use is Axure (http://www.axure.com/). It’s a tool for creating software and web prototypes that can function and interact as if it were the a…
If you don't have the right permissions set for your WordPress location in IIS, you won't be able to perform automatic updates. Here's how to fix the problem.
The purpose of this video is to demonstrate how to connect a WordPress website to Google Analytics. This will be demonstrated using a Windows 8 PC Go to your WordPress login page. This will look like the following: mywebsite.com/wp-login.php :…
The purpose of this video is to demonstrate how to reset a WordPress password if you are locked out and cannot reset the password. A typical use would be if you cannot access the email to which WordPress would send the password recovery email to…

813 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now