Re: gracefull shutdown/removal of worker from load balance...
Title: RE: gracefull shutdown/removal of worker from load balance... Michael, Please post the patch, if you would. Sounds like a very useful piece of code. Regards, Dave - Original Message - From: Michael Kuz To: '[EMAIL PROTECTED]' Sent: Thursday, January 04, 2001 9:51 AM Subject: RE: gracefull shutdown/removal of worker from load balance... We've got the load balancer working just fine, but had to patch mod_jk in order to allow for the removal of TC worker from the pool. I've added a setting called 'active' for each worker. When active is set to 0, the worker will not accept new connections, but continue with the existing sessions. (This allows us to remove the Tomcat box with no loss of users session info...) I submitted the patch, but have heard nothing back. If you (or anyone else) is interested I will post it. Michael R. Kuz Developer Service Intelligence (403) 261-5000 ext. 363 [EMAIL PROTECTED] -Original Message- From: Boaz Shaham [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 03, 2001 3:21 AM To: '[EMAIL PROTECTED]' Subject: RE: gracefull shutdown/removal of worker from load balance... mod_jserv documentation indicates that this should be done. Take a look at http://java.apache.org/jserv/howto.load-balancing.html However, we tried it but could not make it work. I dont know if mod_jk supports this, but I"ll be glad to hear that someone succeeded - Boaz -Original Message- From: Michael Kuz [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 03, 2001 03:51 To: '[EMAIL PROTECTED]'; '[EMAIL PROTECTED]' Subject: gracefull shutdown/removal of worker from load balance...Hello all, How do I remove a worker from the load balancer without killing its current sessions? i.e.: I don't want any new sessions created on that worker, and the existing sessions must be allowed to expire 'naturally' (I can't just delete the entry from the balanced_workers property of the load balancer or current/established sessions get killed/ are not redirected to the proper worker) Our setup: We've got multiple Apache web servers behind LVS with multiple TC(3.2) boxes behind the web servers... Thanks in advance Michael R. Kuz Developer Service Intelligence (403) 261-5000 ext. 363 [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
[PATCH PROPOSAL] for mod_jk (was: RE: gracefull shutdown/removal of worker from load balance...)
Title: RE: gracefull shutdown/removal of worker from load balance... Thanks Dave, here you go! WARNINGThis is not an official patch and that it has only been tested on Linux. Use at your own risk :) OVERVIEW The patch allows for a worker.name.active parameter to be added to the workers.property file. eg: worker.tc7.active=0 If the active parameter = 1, worker will accept new connections as per SOP (this is also the default state, so if the parameter is not in the file it still works, or if the value is anything other then 0 it still works...)If the active parameter = 0, the worker will continue to service existing sessions, but will not accept new sessions.I'm still working on a way to determine actives sessions in a worker... Feedback appreciated! Michael R. Kuz Developer Service Intelligence (403) 261-5000 ext. 363 [EMAIL PROTECTED] -Original Message-From: Dave Smith [mailto:[EMAIL PROTECTED]]Sent: Friday, October 20, 2000 9:01 AMTo: [EMAIL PROTECTED]Subject: Re: gracefull shutdown/removal of worker from load balance... Michael, Please post the patch, if you would. Sounds like a very useful piece of code. Regards, Dave - Original Message - From: Michael Kuz To: '[EMAIL PROTECTED]' Sent: Thursday, January 04, 2001 9:51 AM Subject: RE: gracefull shutdown/removal of worker from load balance... We've got the load balancer working just fine, but had to patch mod_jk in order to allow for the removal of TC worker from the pool. I've added a setting called 'active' for each worker. When active is set to 0, the worker will not accept new connections, but continue with the existing sessions. (This allows us to remove the Tomcat box with no loss of users session info...) I submitted the patch, but have heard nothing back. If you (or anyone else) is interested I will post it. Michael R. Kuz Developer Service Intelligence (403) 261-5000 ext. 363 [EMAIL PROTECTED] -Original Message- From: Boaz Shaham [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 03, 2001 3:21 AM To: '[EMAIL PROTECTED]' Subject: RE: gracefull shutdown/removal of worker from load balance... mod_jserv documentation indicates that this should be done. Take a look at http://java.apache.org/jserv/howto.load-balancing.html However, we tried it but could not make it work. I dont know if mod_jk supports this, but I"ll be glad to hear that someone succeeded - Boaz -Original Message- From: Michael Kuz [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 03, 2001 03:51 To: '[EMAIL PROTECTED]'; '[EMAIL PROTECTED]' Subject: gracefull shutdown/removal of worker from load balance...Hello all, How do I remove a worker from the load balancer without killing its current sessions? i.e.: I don't want any new sessions created on that worker, and the existing sessions must be allowed to expire 'naturally' (I can't just delete the entry from the balanced_workers property of the load balancer or current/established sessions get killed/ are not redirected to the proper worker) Our setup: We've got multiple Apache web servers behind LVS with multiple TC(3.2) boxes behind the web servers... Thanks in advance Michael R. Kuz Developer Service Intelligence (403) 261-5000 ext. 363 [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED] activeState.patch - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
RE: gracefull shutdown/removal of worker from load balance...
mod_jserv documentation indicates that this should be done. Take a look at http://java.apache.org/jserv/howto.load-balancing.html However, we tried it but could not make it work. I dont know if mod_jk supports this, but I"ll be glad to hear that someone succeeded - Boaz -Original Message- From: Michael Kuz [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 03, 2001 03:51 To: '[EMAIL PROTECTED]'; '[EMAIL PROTECTED]' Subject: gracefull shutdown/removal of worker from load balance... Hello all, How do I remove a worker from the load balancer without killing its current sessions? i.e.: I don't want any new sessions created on that worker, and the existing sessions must be allowed to expire 'naturally' (I can't just delete the entry from the balanced_workers property of the load balancer or current/established sessions get killed/ are not redirected to the proper worker) Our setup: We've got multiple Apache web servers behind LVS with multiple TC(3.2) boxes behind the web servers... Thanks in advance Michael R. Kuz Developer Service Intelligence (403) 261-5000 ext. 363 [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
