mod_jk leaves connections open?
Hi everyone, I hope mod_jk questions should be directed to this list, I couldn't find any more suitable. I've been using tomcat and versions of mod_jk for a while now with success. I've got a problem with useing mod_jk-2.0.43.so with apache 2.0.43 and everything seems to work OK for a while. Eventually all request get denied and the mod_jk can't appear to get a connection complaining that tomcat is down or on another port. After a restart of apache (not tomcat) everything will start working again. In digging into the problem, I see that there are hundreds of open connections to the mod_jk port 8009 left open and extablished. Can anyone point me in the right direction on how to solve this problem? Thanks! specifics Solaris 8 Java 1.4 Tomcat 4.1.12 (binary form) Apache 2.0.43 (built from source) mod_jk-2.0.43.so (binary form) -Simon -- Simon Chatfield -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: mod_jk leaves connections open?
We are experiencing this open connection issue in our environment. Though, we are using IIS redirector (isapi_redirector2.dll) with Tomcat 4.1.12. Tomcat hang when the current connection at around 250. We have to restart IIS or Tomcat every time this problem occurs to release the connections. Has anyone found a solution to this issue? Thanks, Tuan -Original Message- From: Simon Chatfield [mailto:[EMAIL PROTECTED]] Sent: Wednesday, December 18, 2002 9:47 AM To: Tomcat Users List Subject: mod_jk leaves connections open? Hi everyone, I hope mod_jk questions should be directed to this list, I couldn't find any more suitable. I've been using tomcat and versions of mod_jk for a while now with success. I've got a problem with useing mod_jk-2.0.43.so with apache 2.0.43 and everything seems to work OK for a while. Eventually all request get denied and the mod_jk can't appear to get a connection complaining that tomcat is down or on another port. After a restart of apache (not tomcat) everything will start working again. In digging into the problem, I see that there are hundreds of open connections to the mod_jk port 8009 left open and extablished. Can anyone point me in the right direction on how to solve this problem? Thanks! specifics Solaris 8 Java 1.4 Tomcat 4.1.12 (binary form) Apache 2.0.43 (built from source) mod_jk-2.0.43.so (binary form) -Simon -- Simon Chatfield -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: mod_jk leaves connections open?
Someone correct me if I'm wrong, but mod_jk using the ajp13 and later protocols is supposed to leave connections open. One of the reasons behind the change from ajp12 to ajp13 was to get away from opening a connection to Tomcat for every servlet/jsp served by Tomcat. If you're having trouble with lockups at a certain number of connections, you probably need to tune the Tomcat thread pool (server.xml), Apache/IIS, and/or the underlying operating system. Keep in mind that resources can be quickly exhausted when running IIS/Apache + mod_jk + Tomcat + your application + database + etc. all on one machine. Best Regards, Jason Koeninger JJ Computer Consulting http://www.jjcc.com On Wed, 18 Dec 2002 10:11:08 -0800, Tuan H. Le wrote: We are experiencing this open connection issue in our environment. Though, we are using IIS redirector (isapi_redirector2.dll) with Tomcat 4.1.12. Tomcat hang when the current connection at around 250. We have to restart IIS or Tomcat every time this problem occurs to release the connections. Has anyone found a solution to this issue? Thanks, Tuan -Original Message- From: Simon Chatfield [mailto:[EMAIL PROTECTED]] Sent: Wednesday, December 18, 2002 9:47 AM To: Tomcat Users List Subject: mod_jk leaves connections open? Hi everyone, I hope mod_jk questions should be directed to this list, I couldn't find any more suitable. I've been using tomcat and versions of mod_jk for a while now with success. I've got a problem with useing mod_jk-2.0.43.so with apache 2.0.43 and everything seems to work OK for a while. Eventually all request get denied and the mod_jk can't appear to get a connection complaining that tomcat is down or on another port. After a restart of apache (not tomcat) everything will start working again. In digging into the problem, I see that there are hundreds of open connections to the mod_jk port 8009 left open and extablished. Can anyone point me in the right direction on how to solve this problem? Thanks! specifics Solaris 8 Java 1.4 Tomcat 4.1.12 (binary form) Apache 2.0.43 (built from source) mod_jk-2.0.43.so (binary form) -Simon -- Simon Chatfield -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: mod_jk leaves connections open?
The one question I have, is does the connections ever close again. I have peak times where I will have 60-80 connections open. But they never close again Randy -Original Message- From: Jason Koeninger [mailto:[EMAIL PROTECTED]] Sent: Wednesday, December 18, 2002 12:09 PM To: Tomcat Users List Subject: RE: mod_jk leaves connections open? Someone correct me if I'm wrong, but mod_jk using the ajp13 and later protocols is supposed to leave connections open. One of the reasons behind the change from ajp12 to ajp13 was to get away from opening a connection to Tomcat for every servlet/jsp served by Tomcat. If you're having trouble with lockups at a certain number of connections, you probably need to tune the Tomcat thread pool (server.xml), Apache/IIS, and/or the underlying operating system. Keep in mind that resources can be quickly exhausted when running IIS/Apache + mod_jk + Tomcat + your application + database + etc. all on one machine. Best Regards, Jason Koeninger JJ Computer Consulting http://www.jjcc.com On Wed, 18 Dec 2002 10:11:08 -0800, Tuan H. Le wrote: We are experiencing this open connection issue in our environment. Though, we are using IIS redirector (isapi_redirector2.dll) with Tomcat 4.1.12. Tomcat hang when the current connection at around 250. We have to restart IIS or Tomcat every time this problem occurs to release the connections. Has anyone found a solution to this issue? Thanks, Tuan -Original Message- From: Simon Chatfield [mailto:[EMAIL PROTECTED]] Sent: Wednesday, December 18, 2002 9:47 AM To: Tomcat Users List Subject: mod_jk leaves connections open? Hi everyone, I hope mod_jk questions should be directed to this list, I couldn't find any more suitable. I've been using tomcat and versions of mod_jk for a while now with success. I've got a problem with useing mod_jk-2.0.43.so with apache 2.0.43 and everything seems to work OK for a while. Eventually all request get denied and the mod_jk can't appear to get a connection complaining that tomcat is down or on another port. After a restart of apache (not tomcat) everything will start working again. In digging into the problem, I see that there are hundreds of open connections to the mod_jk port 8009 left open and extablished. Can anyone point me in the right direction on how to solve this problem? Thanks! specifics Solaris 8 Java 1.4 Tomcat 4.1.12 (binary form) Apache 2.0.43 (built from source) mod_jk-2.0.43.so (binary form) -Simon -- Simon Chatfield -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: mod_jk leaves connections open?
For me I'm not talking about heavy load at all, just a test with JMeter at 20 threads against this apache 2.0.43/tomcat 4.1.12 will cause problems to start occuring. A similar application I have running on linux with apache 1.3.somthing and tomcat 3.2.4 has no problems under much heavier loads. Randy Paries wrote: The one question I have, is does the connections ever close again. I have peak times where I will have 60-80 connections open. But they never close again Randy -Original Message- From: Jason Koeninger [mailto:[EMAIL PROTECTED]] Sent: Wednesday, December 18, 2002 12:09 PM To: Tomcat Users List Subject: RE: mod_jk leaves connections open? Someone correct me if I'm wrong, but mod_jk using the ajp13 and later protocols is supposed to leave connections open. One of the reasons behind the change from ajp12 to ajp13 was to get away from opening a connection to Tomcat for every servlet/jsp served by Tomcat. If you're having trouble with lockups at a certain number of connections, you probably need to tune the Tomcat thread pool (server.xml), Apache/IIS, and/or the underlying operating system. Keep in mind that resources can be quickly exhausted when running IIS/Apache + mod_jk + Tomcat + your application + database + etc. all on one machine. Best Regards, Jason Koeninger JJ Computer Consulting http://www.jjcc.com On Wed, 18 Dec 2002 10:11:08 -0800, Tuan H. Le wrote: We are experiencing this open connection issue in our environment. Though, we are using IIS redirector (isapi_redirector2.dll) with Tomcat 4.1.12. Tomcat hang when the current connection at around 250. We have to restart IIS or Tomcat every time this problem occurs to release the connections. Has anyone found a solution to this issue? Thanks, Tuan -Original Message- From: Simon Chatfield [mailto:[EMAIL PROTECTED]] Sent: Wednesday, December 18, 2002 9:47 AM To: Tomcat Users List Subject: mod_jk leaves connections open? Hi everyone, I hope mod_jk questions should be directed to this list, I couldn't find any more suitable. I've been using tomcat and versions of mod_jk for a while now with success. I've got a problem with useing mod_jk-2.0.43.so with apache 2.0.43 and everything seems to work OK for a while. Eventually all request get denied and the mod_jk can't appear to get a connection complaining that tomcat is down or on another port. After a restart of apache (not tomcat) everything will start working again. In digging into the problem, I see that there are hundreds of open connections to the mod_jk port 8009 left open and extablished. Can anyone point me in the right direction on how to solve this problem? Thanks! specifics Solaris 8 Java 1.4 Tomcat 4.1.12 (binary form) Apache 2.0.43 (built from source) mod_jk-2.0.43.so (binary form) -Simon -- Simon Chatfield -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- Simon Chatfield The Chatfield Group email: [EMAIL PROTECTED] phone: 602-971-9598 web: http://www.thechatfieldgroup.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: mod_jk leaves connections open?
You can set soTimeout by either 'connectionTimout=ms' for the legacy Ajp Connector, or 'channelSocket.serverTimeout=ms' in jk2.properties for the Jk2 Coyote Connector. When I played with this, my performance went down (for a moderate web-site). However, your performance may very. Randy Paries [EMAIL PROTECTED] wrote in message 00b901c2a6c3$305add50$6801010a@rplaptop">news:00b901c2a6c3$305add50$6801010a@rplaptop... The one question I have, is does the connections ever close again. I have peak times where I will have 60-80 connections open. But they never close again Randy -Original Message- From: Jason Koeninger [mailto:[EMAIL PROTECTED]] Sent: Wednesday, December 18, 2002 12:09 PM To: Tomcat Users List Subject: RE: mod_jk leaves connections open? Someone correct me if I'm wrong, but mod_jk using the ajp13 and later protocols is supposed to leave connections open. One of the reasons behind the change from ajp12 to ajp13 was to get away from opening a connection to Tomcat for every servlet/jsp served by Tomcat. If you're having trouble with lockups at a certain number of connections, you probably need to tune the Tomcat thread pool (server.xml), Apache/IIS, and/or the underlying operating system. Keep in mind that resources can be quickly exhausted when running IIS/Apache + mod_jk + Tomcat + your application + database + etc. all on one machine. Best Regards, Jason Koeninger JJ Computer Consulting http://www.jjcc.com On Wed, 18 Dec 2002 10:11:08 -0800, Tuan H. Le wrote: We are experiencing this open connection issue in our environment. Though, we are using IIS redirector (isapi_redirector2.dll) with Tomcat 4.1.12. Tomcat hang when the current connection at around 250. We have to restart IIS or Tomcat every time this problem occurs to release the connections. Has anyone found a solution to this issue? Thanks, Tuan -Original Message- From: Simon Chatfield [mailto:[EMAIL PROTECTED]] Sent: Wednesday, December 18, 2002 9:47 AM To: Tomcat Users List Subject: mod_jk leaves connections open? Hi everyone, I hope mod_jk questions should be directed to this list, I couldn't find any more suitable. I've been using tomcat and versions of mod_jk for a while now with success. I've got a problem with useing mod_jk-2.0.43.so with apache 2.0.43 and everything seems to work OK for a while. Eventually all request get denied and the mod_jk can't appear to get a connection complaining that tomcat is down or on another port. After a restart of apache (not tomcat) everything will start working again. In digging into the problem, I see that there are hundreds of open connections to the mod_jk port 8009 left open and extablished. Can anyone point me in the right direction on how to solve this problem? Thanks! specifics Solaris 8 Java 1.4 Tomcat 4.1.12 (binary form) Apache 2.0.43 (built from source) mod_jk-2.0.43.so (binary form) -Simon -- Simon Chatfield -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
