# Connection error in webrick server **URL:** \ **Category:** Ruby\ **Created:** [October 27, 2008, 7:07am UTC](https://www.ruby-forum.com/t/connection-error-in-webrick-server/151864 "2008-10-27T07:07:04Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![xedric](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/x/6f9a4e/32.png) [@xedric](https://www.ruby-forum.com/u/xedric)\ **Post date:** [October 27, 2008, 7:07am UTC](https://www.ruby-forum.com/t/connection-error-in-webrick-server/151864/1 "2008-10-27T07:07:04Z")
I did a simple server in ruby using webrick as shown in the tutorial. My problem is that when I tested it with several client connection, a number of connections were refused. I can’t find the reason why this happens, even though the default maximum concurrent client is set to 100. I only made 50 concurrent connections but more than 10 connections are often refused. Can anyone explain the reason for this. I also tried changing the default value to a higher value but to no avail. Thanks. ---
**Author:** ![xedric](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/x/6f9a4e/32.png) [@xedric](https://www.ruby-forum.com/u/xedric)\ **Post date:** [October 27, 2008, 7:35am UTC](https://www.ruby-forum.com/t/connection-error-in-webrick-server/151864/2 "2008-10-27T07:35:59Z")
On 27.10.2008 07:06, Cedric Rosario wrote: > I did a simple server in ruby using webrick as shown in the > tutorial. My problem is that when I tested it with several > client connection, a number of connections were refused. I > can’t find the reason why this happens, even though the default > maximum concurrent client is set to 100. I only made 50 concurrent > connections but more than 10 connections are often refused. Can > anyone explain the reason for this. > > I also tried changing the default value to a higher value but to no > avail. What error message did you see? Are there firewalls in between? Did you use hostname for the server URL and can this name be resolved on all hosts? … Kind regards robert ---
**Author:** ![xedric](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/x/6f9a4e/32.png) [@xedric](https://www.ruby-forum.com/u/xedric)\ **Post date:** [October 27, 2008, 8:02am UTC](https://www.ruby-forum.com/t/connection-error-in-webrick-server/151864/3 "2008-10-27T08:02:58Z")
Robert K. wrote: > What error message did you see? Are there firewalls in between? Did > you use hostname for the server URL and can this name be resolved on all > hosts? … > > Kind regards > > robert This was the error message… Errno::ECONNREFUSED: Connection refused - “connect(2)” There are no firewalls set, and I am only using a single computer for this. I used the ip address instead of the hostname. Thanks. cedric ---
**Author:** ![xedric](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/x/6f9a4e/32.png) [@xedric](https://www.ruby-forum.com/u/xedric)\ **Post date:** [October 27, 2008, 11:23pm UTC](https://www.ruby-forum.com/t/connection-error-in-webrick-server/151864/4 "2008-10-27T23:23:26Z")
Robert K. wrote: > Hm… Is the hosting system a Windows non server version? That could > play a role as well. Or, your Webrick dies for some reason and hence > you cannot connect any more. There are so many options where network > communication can go wrong… > > Cheers > > robert I tested it both on a Windows non-server and server versions but the results were the same. The Webrick does not die because it still accepts connections whenever I run the my test program. My only problem is that it doesn’t accept all the connections. Thanks. cedric ---
**Author:** ![xedric](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/x/6f9a4e/32.png) [@xedric](https://www.ruby-forum.com/u/xedric)\ **Post date:** [October 27, 2008, 9:26am UTC](https://www.ruby-forum.com/t/connection-error-in-webrick-server/151864/5 "2008-10-27T09:26:04Z")
2008/10/27 cedric so [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid): > This was the error message… > Errno::ECONNREFUSED: Connection refused - “connect(2)” > > There are no firewalls set, and I am only using a single computer for > this. > I used the ip address instead of the hostname. Hm… Is the hosting system a Windows non server version? That could play a role as well. Or, your Webrick dies for some reason and hence you cannot connect any more. There are so many options where network communication can go wrong… Cheers robert ---
**Author:** ![xedric](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/x/6f9a4e/32.png) [@xedric](https://www.ruby-forum.com/u/xedric)\ **Post date:** [October 28, 2008, 7:40am UTC](https://www.ruby-forum.com/t/connection-error-in-webrick-server/151864/6 "2008-10-28T07:40:53Z")
On 27.10.2008 23:22, cedric so wrote: > whenever I run the my test program. My only problem is that it doesn’t > accept > all the connections. Did you check connection state with netstat? It may be that socket resources are not released fast enough. I’m not a network admin but it may be that you can remedy this with a changed timeout setting. Kind regards robert