RE: Load balancing with apache2, mod_jk2 tomcat 5.0
HI again, Are you using the AJP13 connector in tomcat or did you install and configure the coyote connector. Thanks, -Tom --- Yang Xiao [EMAIL PROTECTED] wrote: Hi, Hmm. I commented out the shm.file line in my jk2.properties because it doesn't seem to be working, but I just did a test with it uncommented, LD still works fine. However, if I use anything other than file=anon in the workers2.properties file, I don't get the Scoreboard info on the jkstatus page, kind of strange. Yang -Original Message- From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED] Sent: Thursday, April 15, 2004 4:55 PM To: Tomcat Users List Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0 Does the shm play a role in this? I note that you have the following: [shm] info=Scoreboard. Requried for reconfiguration and status with multiprocess servers. file=anon #size=104856 #debug=1 Do your tomcat servers have a corresponding entry in their jk2.properties file? Like this? channelSocket.port=8019 shm.file=/mnt/logs/jk2.shm Is this even necessary for load balancing? -Tom --- Yang Xiao [EMAIL PROTECTED] wrote: Yes. -Original Message- From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED] Sent: Thursday, April 15, 2004 9:42 AM To: Tomcat Users List Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0 Thanks. The only change that you made to the tomcat server.xml conf file is assigning your timcatid values to the jvmRoute property, correct? Engine name=Catalina defaultHost=localhost debug=0 jvmRoute=psahammerhead -Tom --- Yang Xiao [EMAIL PROTECTED] wrote: This is pretty much what I have and it works fine. [logger] level=DEBUG [config:] debug=0 debigEnv=0 [uriMap:] info=Maps the requests, Options: debug debug=0 # Alternate file logger [logger.file:0] level=DEBUG file=/usr/local/apache/logs/jk2.log [shm] info=Scoreboard. Requried for reconfiguration and status with multiprocess servers. file=anon #size=104856 #debug=1 [workerEnv:] info=Global server options debug=0 logger=logger.file:0 # Defines a load balancer named lb. Use even if you only have one machine. [lb:lb] info=Default Load Balancer debug=10 # Example socket channel, override port and host. [channel.socket:localhost:8009] port=8009 host=127.0.0.1 lb_factor=5 tomcatid=tomcat1 # Second Scoket Channel [channel.socket:localhost:8019] port=8019 host=127.0.0.1 lb_factor=10 tomcatid=tomcat2 # Third Scoket Channel [channel.socket:localhost:8029] port=8029 host=127.0.0.1 lb_factor=10 tomcatid=tomcat3 # define the worker [ajp13:localhost:8009] channel=channel.socket:localhost:8009 group=lb # define the second worker [ajp13:localhost:8019] channel=channel.socket:localhost:8019 group=lb # define the Third worker [ajp13:localhost:8029] channel=channel.socket:localhost:8029 group=lb # Map the Tomcat examples webapp to the Web server uri space [uri:/jsp-examples/*] info=JSP Examples group=lb [uri:/webtest/*] info=Test JSP Page group=lb [status:] -Original Message- From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED] Sent: Thursday, April 15, 2004 7:46 AM To: Tomcat Users List Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0 Yes. I did a full stop and start of apache. There are no errors in the log files either. Do you, or anyone else, have a workers2.properties file of a working system that you are willing to share? I've gone through all the sections and properties in the latest jakarta jk2 document as well as other How-Tos and don't see what I've missed (I'm afraid I don't understand all of it either :). Does the shm section play a part? I interpretted it to be needed only if one wants to share session data between the differnet tomcat servers, and does not have anything to do with load balancing. Thanks, -Tom --- Yang Xiao [EMAIL PROTECTED] wrote: Hi, Did you restart the Apache2 server? My understanding is JK only reloads it only if the section you modified in workers.properties has ver defined. Also, check your jk.log and Catalina.log files for errors. Yang -Original Message- From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED] Sent: Wednesday, April 14, 2004 7:09 PM To: Tomcat Users List Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0 Thanks but it doesn't seem to make any difference. For each tomcat server I added sections like the following: [ajp13:psahammerhead:8009] channel=channel.socket:psahammerhead:8009 group=lb tomcatId=psahammerhead It still only wants to use one of the servers
RE: Load balancing with apache2, mod_jk2 tomcat 5.0
The docs at http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jk2/jk2/configwebcom.htm l#How%20Load%20Balancing%20Works have been improved. Try reading them again. -Original Message- From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED] Sent: Wednesday, April 14, 2004 10:17 AM To: [EMAIL PROTECTED] Subject: Load balancing with apache2, mod_jk2 tomcat 5.0 Hi, I have set up four tomcat 5.0 servers for load balancing using an apache2 server and mod_jk2 on RedHat 9.0. The trouble that I am having is that most of the user sessions are routed to only one of the tomcat servers even though the lb_factor for all is the same, 10. All tomcat servers seem to be working since I can disable all but one in the workers2.properties file to force that tomcat server to be used. Chnaging the lb_factor can also cause a different tomcat server to be used most of the time, but I haven't figured out how to control the balancing by lb_factor. Below is the workers2.properties file that I am using. Thanks for any help you can provide, -Tom # workers2.properties [logger] level=DEBUG [config:] debug=0 debugEnv=0 [uriMap:] info=Maps the requests. Options: debug debug=0 # Alternate file logger [logger.file:0] level=DEBUG file=/usr/local/apache2/logs/jk2.log #[shm:] #info=Scoreboard. Required for reconfiguration and status with multiprocess servers #file=/usr/local/apache2/logs/jk2.shm #size=100 #debug=0 #disabled=0 [workerEnv:] info=Global server options debug=0 timing=1 # Default Native Logger (apache2 or win32 ) # can be overriden to a file logger, useful # when tracing win32 related issues #logger=logger.file:0 [lb:lb] ver=1 info=Default load balancer. debug=10 [channel.socket:psahammerhead:8009] ver=1 graceful=0 info=A tomcat instance - psahammerhead. debug=0 disabled=0 group=lb tomcatId=psahammerhead lb_factor=10 [channel.socket:psashovelhead:8009] ver=1 graceful=0 info=A tomcat instance - psashovelhead. debug=0 disabled=0 group=lb tomcatId=psashovelhead lb_factor=10 [channel.socket:psabonnethead:8009] ver=1 graceful=0 info=A tomcat instance - psabonnethead. debug=0 disabled=1 group=lb tomcatId=psabonnethead lb_factor=10 [channel.socket:psawinghead:8009] ver=1 graceful=0 info=A tomcat instance - psawinghead. debug=0 disabled=1 group=lb tomcatId=psawinghead lb_factor=10 [status:status] info=Status worker, displays runtime informations [uri:/jkstatus] group=status:status # Map the Tomcat examples webbapp [uri:/myapp/*] info=Map the whole webapp group=lb __ Do you Yahoo!? Yahoo! Tax Center - File online by April 15th http://taxes.yahoo.com/filing.html - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Yes. I did a full stop and start of apache. There are no errors in the log
files either. Do you, or anyone else, have a workers2.properties file of a
working system that you are willing to share? I've gone through all the
sections and properties in the latest jakarta jk2 document as well as other
How-Tos and don't see what I've missed (I'm afraid I don't understand all of it
either :). Does the shm section play a part? I interpretted it to be needed
only if one wants to share session data between the differnet tomcat servers,
and does not have anything to do with load balancing.
Thanks,
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Hi,
Did you restart the Apache2 server? My understanding is JK only reloads it
only if the section you modified in workers.properties has ver defined.
Also, check your jk.log and Catalina.log files for errors.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 7:09 PM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Thanks but it doesn't seem to make any difference. For each tomcat server I
added sections like the following:
[ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
tomcatId=psahammerhead
It still only wants to use one of the servers. There are other properties
that
could be used but they're not documented too well. Any other suggestions
would
be greatly appreciated.
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Hi,
I think you need to further define the workers with
{ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
...
etc
hope this helps.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 10:17 AM
To: [EMAIL PROTECTED]
Subject: Load balancing with apache2, mod_jk2 tomcat 5.0
Hi,
I have set up four tomcat 5.0 servers for load balancing using an apache2
server and mod_jk2 on RedHat 9.0. The trouble that I am having is that
most
of
the user sessions are routed to only one of the tomcat servers even though
the
lb_factor for all is the same, 10. All tomcat servers seem to be working
since
I can disable all but one in the workers2.properties file to force that
tomcat
server to be used. Chnaging the lb_factor can also cause a different
tomcat
server to be used most of the time, but I haven't figured out how to
control
the balancing by lb_factor.
Below is the workers2.properties file that I am using.
Thanks for any help you can provide,
-Tom
# workers2.properties
[logger]
level=DEBUG
[config:]
debug=0
debugEnv=0
[uriMap:]
info=Maps the requests. Options: debug
debug=0
# Alternate file logger
[logger.file:0]
level=DEBUG
file=/usr/local/apache2/logs/jk2.log
#[shm:]
#info=Scoreboard. Required for reconfiguration and status with
multiprocess
servers
#file=/usr/local/apache2/logs/jk2.shm
#size=100
#debug=0
#disabled=0
[workerEnv:]
info=Global server options
debug=0
timing=1
# Default Native Logger (apache2 or win32 )
# can be overriden to a file logger, useful
# when tracing win32 related issues
#logger=logger.file:0
[lb:lb]
ver=1
info=Default load balancer.
debug=10
[channel.socket:psahammerhead:8009]
ver=1
graceful=0
info=A tomcat instance - psahammerhead.
debug=0
disabled=0
group=lb
tomcatId=psahammerhead
lb_factor=10
[channel.socket:psashovelhead:8009]
ver=1
graceful=0
info=A tomcat instance - psashovelhead.
debug=0
disabled=0
group=lb
tomcatId=psashovelhead
lb_factor=10
[channel.socket:psabonnethead:8009]
ver=1
graceful=0
info=A tomcat instance - psabonnethead.
debug=0
disabled=1
group=lb
tomcatId=psabonnethead
lb_factor=10
[channel.socket:psawinghead:8009]
ver=1
graceful=0
info=A tomcat instance - psawinghead.
debug=0
disabled=1
group=lb
tomcatId=psawinghead
lb_factor=10
[status:status]
info=Status worker, displays runtime informations
[uri:/jkstatus]
group=status:status
# Map the Tomcat examples webbapp
[uri:/myapp/*]
info=Map the whole webapp
group=lb
__
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Do you Yahoo!?
Yahoo! Tax Center - File online by April 15th
http://taxes.yahoo.com
RE: Load balancing with apache2, mod_jk2 tomcat 5.0
This is pretty much what I have and it works fine.
[logger]
level=DEBUG
[config:]
debug=0
debigEnv=0
[uriMap:]
info=Maps the requests, Options: debug
debug=0
# Alternate file logger
[logger.file:0]
level=DEBUG
file=/usr/local/apache/logs/jk2.log
[shm]
info=Scoreboard. Requried for reconfiguration and status with multiprocess
servers.
file=anon
#size=104856
#debug=1
[workerEnv:]
info=Global server options
debug=0
logger=logger.file:0
# Defines a load balancer named lb. Use even if you only have one machine.
[lb:lb]
info=Default Load Balancer
debug=10
# Example socket channel, override port and host.
[channel.socket:localhost:8009]
port=8009
host=127.0.0.1
lb_factor=5
tomcatid=tomcat1
# Second Scoket Channel
[channel.socket:localhost:8019]
port=8019
host=127.0.0.1
lb_factor=10
tomcatid=tomcat2
# Third Scoket Channel
[channel.socket:localhost:8029]
port=8029
host=127.0.0.1
lb_factor=10
tomcatid=tomcat3
# define the worker
[ajp13:localhost:8009]
channel=channel.socket:localhost:8009
group=lb
# define the second worker
[ajp13:localhost:8019]
channel=channel.socket:localhost:8019
group=lb
# define the Third worker
[ajp13:localhost:8029]
channel=channel.socket:localhost:8029
group=lb
# Map the Tomcat examples webapp to the Web server uri space
[uri:/jsp-examples/*]
info=JSP Examples
group=lb
[uri:/webtest/*]
info=Test JSP Page
group=lb
[status:]
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 15, 2004 7:46 AM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Yes. I did a full stop and start of apache. There are no errors in the log
files either. Do you, or anyone else, have a workers2.properties file of a
working system that you are willing to share? I've gone through all the
sections and properties in the latest jakarta jk2 document as well as other
How-Tos and don't see what I've missed (I'm afraid I don't understand all of
it
either :). Does the shm section play a part? I interpretted it to be
needed
only if one wants to share session data between the differnet tomcat
servers,
and does not have anything to do with load balancing.
Thanks,
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Hi,
Did you restart the Apache2 server? My understanding is JK only reloads it
only if the section you modified in workers.properties has ver defined.
Also, check your jk.log and Catalina.log files for errors.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 7:09 PM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Thanks but it doesn't seem to make any difference. For each tomcat server
I
added sections like the following:
[ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
tomcatId=psahammerhead
It still only wants to use one of the servers. There are other properties
that
could be used but they're not documented too well. Any other suggestions
would
be greatly appreciated.
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Hi,
I think you need to further define the workers with
{ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
...
etc
hope this helps.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 10:17 AM
To: [EMAIL PROTECTED]
Subject: Load balancing with apache2, mod_jk2 tomcat 5.0
Hi,
I have set up four tomcat 5.0 servers for load balancing using an
apache2
server and mod_jk2 on RedHat 9.0. The trouble that I am having is that
most
of
the user sessions are routed to only one of the tomcat servers even
though
the
lb_factor for all is the same, 10. All tomcat servers seem to be
working
since
I can disable all but one in the workers2.properties file to force that
tomcat
server to be used. Chnaging the lb_factor can also cause a different
tomcat
server to be used most of the time, but I haven't figured out how to
control
the balancing by lb_factor.
Below is the workers2.properties file that I am using.
Thanks for any help you can provide,
-Tom
# workers2.properties
[logger]
level=DEBUG
[config:]
debug=0
debugEnv=0
[uriMap:]
info=Maps the requests. Options: debug
debug=0
# Alternate file logger
[logger.file:0]
level=DEBUG
file=/usr/local/apache2/logs/jk2.log
#[shm:]
#info=Scoreboard. Required for reconfiguration and status with
multiprocess
servers
#file=/usr/local/apache2/logs/jk2.shm
#size=100
#debug=0
#disabled=0
[workerEnv:]
info=Global server options
debug=0
timing=1
# Default Native Logger (apache2 or win32 )
# can be overriden to a file logger, useful
# when tracing win32 related issues
#logger=logger.file:0
[lb:lb]
ver=1
info=Default load balancer.
debug=10
RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Thanks. The only change that you made to the tomcat server.xml conf file is
assigning your timcatid values to the jvmRoute property, correct?
Engine name=Catalina defaultHost=localhost debug=0
jvmRoute=psahammerhead
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
This is pretty much what I have and it works fine.
[logger]
level=DEBUG
[config:]
debug=0
debigEnv=0
[uriMap:]
info=Maps the requests, Options: debug
debug=0
# Alternate file logger
[logger.file:0]
level=DEBUG
file=/usr/local/apache/logs/jk2.log
[shm]
info=Scoreboard. Requried for reconfiguration and status with multiprocess
servers.
file=anon
#size=104856
#debug=1
[workerEnv:]
info=Global server options
debug=0
logger=logger.file:0
# Defines a load balancer named lb. Use even if you only have one machine.
[lb:lb]
info=Default Load Balancer
debug=10
# Example socket channel, override port and host.
[channel.socket:localhost:8009]
port=8009
host=127.0.0.1
lb_factor=5
tomcatid=tomcat1
# Second Scoket Channel
[channel.socket:localhost:8019]
port=8019
host=127.0.0.1
lb_factor=10
tomcatid=tomcat2
# Third Scoket Channel
[channel.socket:localhost:8029]
port=8029
host=127.0.0.1
lb_factor=10
tomcatid=tomcat3
# define the worker
[ajp13:localhost:8009]
channel=channel.socket:localhost:8009
group=lb
# define the second worker
[ajp13:localhost:8019]
channel=channel.socket:localhost:8019
group=lb
# define the Third worker
[ajp13:localhost:8029]
channel=channel.socket:localhost:8029
group=lb
# Map the Tomcat examples webapp to the Web server uri space
[uri:/jsp-examples/*]
info=JSP Examples
group=lb
[uri:/webtest/*]
info=Test JSP Page
group=lb
[status:]
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 15, 2004 7:46 AM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Yes. I did a full stop and start of apache. There are no errors in the log
files either. Do you, or anyone else, have a workers2.properties file of a
working system that you are willing to share? I've gone through all the
sections and properties in the latest jakarta jk2 document as well as other
How-Tos and don't see what I've missed (I'm afraid I don't understand all of
it
either :). Does the shm section play a part? I interpretted it to be
needed
only if one wants to share session data between the differnet tomcat
servers,
and does not have anything to do with load balancing.
Thanks,
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Hi,
Did you restart the Apache2 server? My understanding is JK only reloads it
only if the section you modified in workers.properties has ver defined.
Also, check your jk.log and Catalina.log files for errors.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 7:09 PM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Thanks but it doesn't seem to make any difference. For each tomcat server
I
added sections like the following:
[ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
tomcatId=psahammerhead
It still only wants to use one of the servers. There are other properties
that
could be used but they're not documented too well. Any other suggestions
would
be greatly appreciated.
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Hi,
I think you need to further define the workers with
{ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
...
etc
hope this helps.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 10:17 AM
To: [EMAIL PROTECTED]
Subject: Load balancing with apache2, mod_jk2 tomcat 5.0
Hi,
I have set up four tomcat 5.0 servers for load balancing using an
apache2
server and mod_jk2 on RedHat 9.0. The trouble that I am having is that
most
of
the user sessions are routed to only one of the tomcat servers even
though
the
lb_factor for all is the same, 10. All tomcat servers seem to be
working
since
I can disable all but one in the workers2.properties file to force that
tomcat
server to be used. Chnaging the lb_factor can also cause a different
tomcat
server to be used most of the time, but I haven't figured out how to
control
the balancing by lb_factor.
Below is the workers2.properties file that I am using.
Thanks for any help you can provide,
-Tom
# workers2.properties
[logger]
level=DEBUG
[config:]
debug=0
debugEnv=0
[uriMap:]
info=Maps the requests. Options: debug
debug=0
# Alternate file logger
[logger.file:0]
level=DEBUG
file=/usr/local/apache2/logs/jk2.log
#[shm:]
#info
RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Yes.
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 15, 2004 9:42 AM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Thanks. The only change that you made to the tomcat server.xml conf file is
assigning your timcatid values to the jvmRoute property, correct?
Engine name=Catalina defaultHost=localhost debug=0
jvmRoute=psahammerhead
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
This is pretty much what I have and it works fine.
[logger]
level=DEBUG
[config:]
debug=0
debigEnv=0
[uriMap:]
info=Maps the requests, Options: debug
debug=0
# Alternate file logger
[logger.file:0]
level=DEBUG
file=/usr/local/apache/logs/jk2.log
[shm]
info=Scoreboard. Requried for reconfiguration and status with multiprocess
servers.
file=anon
#size=104856
#debug=1
[workerEnv:]
info=Global server options
debug=0
logger=logger.file:0
# Defines a load balancer named lb. Use even if you only have one machine.
[lb:lb]
info=Default Load Balancer
debug=10
# Example socket channel, override port and host.
[channel.socket:localhost:8009]
port=8009
host=127.0.0.1
lb_factor=5
tomcatid=tomcat1
# Second Scoket Channel
[channel.socket:localhost:8019]
port=8019
host=127.0.0.1
lb_factor=10
tomcatid=tomcat2
# Third Scoket Channel
[channel.socket:localhost:8029]
port=8029
host=127.0.0.1
lb_factor=10
tomcatid=tomcat3
# define the worker
[ajp13:localhost:8009]
channel=channel.socket:localhost:8009
group=lb
# define the second worker
[ajp13:localhost:8019]
channel=channel.socket:localhost:8019
group=lb
# define the Third worker
[ajp13:localhost:8029]
channel=channel.socket:localhost:8029
group=lb
# Map the Tomcat examples webapp to the Web server uri space
[uri:/jsp-examples/*]
info=JSP Examples
group=lb
[uri:/webtest/*]
info=Test JSP Page
group=lb
[status:]
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 15, 2004 7:46 AM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Yes. I did a full stop and start of apache. There are no errors in the
log
files either. Do you, or anyone else, have a workers2.properties file of
a
working system that you are willing to share? I've gone through all the
sections and properties in the latest jakarta jk2 document as well as
other
How-Tos and don't see what I've missed (I'm afraid I don't understand all
of
it
either :). Does the shm section play a part? I interpretted it to be
needed
only if one wants to share session data between the differnet tomcat
servers,
and does not have anything to do with load balancing.
Thanks,
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Hi,
Did you restart the Apache2 server? My understanding is JK only reloads
it
only if the section you modified in workers.properties has ver
defined.
Also, check your jk.log and Catalina.log files for errors.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 7:09 PM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Thanks but it doesn't seem to make any difference. For each tomcat
server
I
added sections like the following:
[ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
tomcatId=psahammerhead
It still only wants to use one of the servers. There are other
properties
that
could be used but they're not documented too well. Any other
suggestions
would
be greatly appreciated.
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Hi,
I think you need to further define the workers with
{ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
...
etc
hope this helps.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 10:17 AM
To: [EMAIL PROTECTED]
Subject: Load balancing with apache2, mod_jk2 tomcat 5.0
Hi,
I have set up four tomcat 5.0 servers for load balancing using an
apache2
server and mod_jk2 on RedHat 9.0. The trouble that I am having is
that
most
of
the user sessions are routed to only one of the tomcat servers even
though
the
lb_factor for all is the same, 10. All tomcat servers seem to be
working
since
I can disable all but one in the workers2.properties file to force
that
tomcat
server to be used. Chnaging the lb_factor can also cause a different
tomcat
server to be used most of the time, but I haven't figured out how to
control
the balancing by lb_factor.
Below is the workers2.properties file that I am using.
Thanks for any help you can provide,
-Tom
# workers2.properties
[logger]
level=DEBUG
[config:]
debug=0
debugEnv
RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Does the shm play a role in this? I note that you have the following:
[shm]
info=Scoreboard. Requried for reconfiguration and status with multiprocess
servers.
file=anon
#size=104856
#debug=1
Do your tomcat servers have a corresponding entry in their jk2.properties file?
Like this?
channelSocket.port=8019
shm.file=/mnt/logs/jk2.shm
Is this even necessary for load balancing?
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Yes.
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 15, 2004 9:42 AM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Thanks. The only change that you made to the tomcat server.xml conf file is
assigning your timcatid values to the jvmRoute property, correct?
Engine name=Catalina defaultHost=localhost debug=0
jvmRoute=psahammerhead
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
This is pretty much what I have and it works fine.
[logger]
level=DEBUG
[config:]
debug=0
debigEnv=0
[uriMap:]
info=Maps the requests, Options: debug
debug=0
# Alternate file logger
[logger.file:0]
level=DEBUG
file=/usr/local/apache/logs/jk2.log
[shm]
info=Scoreboard. Requried for reconfiguration and status with multiprocess
servers.
file=anon
#size=104856
#debug=1
[workerEnv:]
info=Global server options
debug=0
logger=logger.file:0
# Defines a load balancer named lb. Use even if you only have one machine.
[lb:lb]
info=Default Load Balancer
debug=10
# Example socket channel, override port and host.
[channel.socket:localhost:8009]
port=8009
host=127.0.0.1
lb_factor=5
tomcatid=tomcat1
# Second Scoket Channel
[channel.socket:localhost:8019]
port=8019
host=127.0.0.1
lb_factor=10
tomcatid=tomcat2
# Third Scoket Channel
[channel.socket:localhost:8029]
port=8029
host=127.0.0.1
lb_factor=10
tomcatid=tomcat3
# define the worker
[ajp13:localhost:8009]
channel=channel.socket:localhost:8009
group=lb
# define the second worker
[ajp13:localhost:8019]
channel=channel.socket:localhost:8019
group=lb
# define the Third worker
[ajp13:localhost:8029]
channel=channel.socket:localhost:8029
group=lb
# Map the Tomcat examples webapp to the Web server uri space
[uri:/jsp-examples/*]
info=JSP Examples
group=lb
[uri:/webtest/*]
info=Test JSP Page
group=lb
[status:]
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 15, 2004 7:46 AM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Yes. I did a full stop and start of apache. There are no errors in the
log
files either. Do you, or anyone else, have a workers2.properties file of
a
working system that you are willing to share? I've gone through all the
sections and properties in the latest jakarta jk2 document as well as
other
How-Tos and don't see what I've missed (I'm afraid I don't understand all
of
it
either :). Does the shm section play a part? I interpretted it to be
needed
only if one wants to share session data between the differnet tomcat
servers,
and does not have anything to do with load balancing.
Thanks,
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Hi,
Did you restart the Apache2 server? My understanding is JK only reloads
it
only if the section you modified in workers.properties has ver
defined.
Also, check your jk.log and Catalina.log files for errors.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 7:09 PM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Thanks but it doesn't seem to make any difference. For each tomcat
server
I
added sections like the following:
[ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
tomcatId=psahammerhead
It still only wants to use one of the servers. There are other
properties
that
could be used but they're not documented too well. Any other
suggestions
would
be greatly appreciated.
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Hi,
I think you need to further define the workers with
{ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
...
etc
hope this helps.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 10:17 AM
To: [EMAIL PROTECTED]
Subject: Load balancing with apache2, mod_jk2 tomcat 5.0
Hi,
I have set up four tomcat 5.0 servers for load balancing using an
apache2
server and mod_jk2 on RedHat 9.0. The trouble that I am having is
that
most
of
the user sessions are routed to only one
RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Hi,
Hmm. I commented out the shm.file line in my jk2.properties because it
doesn't seem to be working, but I just did a test with it uncommented, LD
still works fine.
However, if I use anything other than file=anon in the workers2.properties
file, I don't get the Scoreboard info on the jkstatus page, kind of strange.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 15, 2004 4:55 PM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Does the shm play a role in this? I note that you have the following:
[shm]
info=Scoreboard. Requried for reconfiguration and status with multiprocess
servers.
file=anon
#size=104856
#debug=1
Do your tomcat servers have a corresponding entry in their jk2.properties
file?
Like this?
channelSocket.port=8019
shm.file=/mnt/logs/jk2.shm
Is this even necessary for load balancing?
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Yes.
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 15, 2004 9:42 AM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Thanks. The only change that you made to the tomcat server.xml conf file
is
assigning your timcatid values to the jvmRoute property, correct?
Engine name=Catalina defaultHost=localhost debug=0
jvmRoute=psahammerhead
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
This is pretty much what I have and it works fine.
[logger]
level=DEBUG
[config:]
debug=0
debigEnv=0
[uriMap:]
info=Maps the requests, Options: debug
debug=0
# Alternate file logger
[logger.file:0]
level=DEBUG
file=/usr/local/apache/logs/jk2.log
[shm]
info=Scoreboard. Requried for reconfiguration and status with
multiprocess
servers.
file=anon
#size=104856
#debug=1
[workerEnv:]
info=Global server options
debug=0
logger=logger.file:0
# Defines a load balancer named lb. Use even if you only have one
machine.
[lb:lb]
info=Default Load Balancer
debug=10
# Example socket channel, override port and host.
[channel.socket:localhost:8009]
port=8009
host=127.0.0.1
lb_factor=5
tomcatid=tomcat1
# Second Scoket Channel
[channel.socket:localhost:8019]
port=8019
host=127.0.0.1
lb_factor=10
tomcatid=tomcat2
# Third Scoket Channel
[channel.socket:localhost:8029]
port=8029
host=127.0.0.1
lb_factor=10
tomcatid=tomcat3
# define the worker
[ajp13:localhost:8009]
channel=channel.socket:localhost:8009
group=lb
# define the second worker
[ajp13:localhost:8019]
channel=channel.socket:localhost:8019
group=lb
# define the Third worker
[ajp13:localhost:8029]
channel=channel.socket:localhost:8029
group=lb
# Map the Tomcat examples webapp to the Web server uri space
[uri:/jsp-examples/*]
info=JSP Examples
group=lb
[uri:/webtest/*]
info=Test JSP Page
group=lb
[status:]
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 15, 2004 7:46 AM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Yes. I did a full stop and start of apache. There are no errors in the
log
files either. Do you, or anyone else, have a workers2.properties file
of
a
working system that you are willing to share? I've gone through all the
sections and properties in the latest jakarta jk2 document as well as
other
How-Tos and don't see what I've missed (I'm afraid I don't understand
all
of
it
either :). Does the shm section play a part? I interpretted it to be
needed
only if one wants to share session data between the differnet tomcat
servers,
and does not have anything to do with load balancing.
Thanks,
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Hi,
Did you restart the Apache2 server? My understanding is JK only
reloads
it
only if the section you modified in workers.properties has ver
defined.
Also, check your jk.log and Catalina.log files for errors.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 7:09 PM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Thanks but it doesn't seem to make any difference. For each tomcat
server
I
added sections like the following:
[ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
tomcatId=psahammerhead
It still only wants to use one of the servers. There are other
properties
that
could be used but they're not documented too well. Any other
suggestions
would
be greatly appreciated.
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Hi,
I think you need to further define the workers with
{ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Some members of this list have reported that the load balancing is broken as the instances of mod_jk[2] don't know the load of each other. So mod_jk[2] will balance to some extend but not as good as it could/should. -Original Message- From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED] Sent: Wednesday, April 14, 2004 4:17 PM To: [EMAIL PROTECTED] Subject: Load balancing with apache2, mod_jk2 tomcat 5.0 I have set up four tomcat 5.0 servers for load balancing using an apache2 server and mod_jk2 on RedHat 9.0. The trouble that I am having is that most of the user sessions are routed to only one of the tomcat servers even though the lb_factor for all is the same, 10. All tomcat servers seem to be working since I can disable all but one in the workers2.properties file to force that tomcat - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Hi,
I think you need to further define the workers with
{ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
...
etc
hope this helps.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 10:17 AM
To: [EMAIL PROTECTED]
Subject: Load balancing with apache2, mod_jk2 tomcat 5.0
Hi,
I have set up four tomcat 5.0 servers for load balancing using an apache2
server and mod_jk2 on RedHat 9.0. The trouble that I am having is that most
of
the user sessions are routed to only one of the tomcat servers even though
the
lb_factor for all is the same, 10. All tomcat servers seem to be working
since
I can disable all but one in the workers2.properties file to force that
tomcat
server to be used. Chnaging the lb_factor can also cause a different tomcat
server to be used most of the time, but I haven't figured out how to control
the balancing by lb_factor.
Below is the workers2.properties file that I am using.
Thanks for any help you can provide,
-Tom
# workers2.properties
[logger]
level=DEBUG
[config:]
debug=0
debugEnv=0
[uriMap:]
info=Maps the requests. Options: debug
debug=0
# Alternate file logger
[logger.file:0]
level=DEBUG
file=/usr/local/apache2/logs/jk2.log
#[shm:]
#info=Scoreboard. Required for reconfiguration and status with multiprocess
servers
#file=/usr/local/apache2/logs/jk2.shm
#size=100
#debug=0
#disabled=0
[workerEnv:]
info=Global server options
debug=0
timing=1
# Default Native Logger (apache2 or win32 )
# can be overriden to a file logger, useful
# when tracing win32 related issues
#logger=logger.file:0
[lb:lb]
ver=1
info=Default load balancer.
debug=10
[channel.socket:psahammerhead:8009]
ver=1
graceful=0
info=A tomcat instance - psahammerhead.
debug=0
disabled=0
group=lb
tomcatId=psahammerhead
lb_factor=10
[channel.socket:psashovelhead:8009]
ver=1
graceful=0
info=A tomcat instance - psashovelhead.
debug=0
disabled=0
group=lb
tomcatId=psashovelhead
lb_factor=10
[channel.socket:psabonnethead:8009]
ver=1
graceful=0
info=A tomcat instance - psabonnethead.
debug=0
disabled=1
group=lb
tomcatId=psabonnethead
lb_factor=10
[channel.socket:psawinghead:8009]
ver=1
graceful=0
info=A tomcat instance - psawinghead.
debug=0
disabled=1
group=lb
tomcatId=psawinghead
lb_factor=10
[status:status]
info=Status worker, displays runtime informations
[uri:/jkstatus]
group=status:status
# Map the Tomcat examples webbapp
[uri:/myapp/*]
info=Map the whole webapp
group=lb
__
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RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Thanks but it doesn't seem to make any difference. For each tomcat server I
added sections like the following:
[ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
tomcatId=psahammerhead
It still only wants to use one of the servers. There are other properties that
could be used but they're not documented too well. Any other suggestions would
be greatly appreciated.
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Hi,
I think you need to further define the workers with
{ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
...
etc
hope this helps.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 10:17 AM
To: [EMAIL PROTECTED]
Subject: Load balancing with apache2, mod_jk2 tomcat 5.0
Hi,
I have set up four tomcat 5.0 servers for load balancing using an apache2
server and mod_jk2 on RedHat 9.0. The trouble that I am having is that most
of
the user sessions are routed to only one of the tomcat servers even though
the
lb_factor for all is the same, 10. All tomcat servers seem to be working
since
I can disable all but one in the workers2.properties file to force that
tomcat
server to be used. Chnaging the lb_factor can also cause a different tomcat
server to be used most of the time, but I haven't figured out how to control
the balancing by lb_factor.
Below is the workers2.properties file that I am using.
Thanks for any help you can provide,
-Tom
# workers2.properties
[logger]
level=DEBUG
[config:]
debug=0
debugEnv=0
[uriMap:]
info=Maps the requests. Options: debug
debug=0
# Alternate file logger
[logger.file:0]
level=DEBUG
file=/usr/local/apache2/logs/jk2.log
#[shm:]
#info=Scoreboard. Required for reconfiguration and status with multiprocess
servers
#file=/usr/local/apache2/logs/jk2.shm
#size=100
#debug=0
#disabled=0
[workerEnv:]
info=Global server options
debug=0
timing=1
# Default Native Logger (apache2 or win32 )
# can be overriden to a file logger, useful
# when tracing win32 related issues
#logger=logger.file:0
[lb:lb]
ver=1
info=Default load balancer.
debug=10
[channel.socket:psahammerhead:8009]
ver=1
graceful=0
info=A tomcat instance - psahammerhead.
debug=0
disabled=0
group=lb
tomcatId=psahammerhead
lb_factor=10
[channel.socket:psashovelhead:8009]
ver=1
graceful=0
info=A tomcat instance - psashovelhead.
debug=0
disabled=0
group=lb
tomcatId=psashovelhead
lb_factor=10
[channel.socket:psabonnethead:8009]
ver=1
graceful=0
info=A tomcat instance - psabonnethead.
debug=0
disabled=1
group=lb
tomcatId=psabonnethead
lb_factor=10
[channel.socket:psawinghead:8009]
ver=1
graceful=0
info=A tomcat instance - psawinghead.
debug=0
disabled=1
group=lb
tomcatId=psawinghead
lb_factor=10
[status:status]
info=Status worker, displays runtime informations
[uri:/jkstatus]
group=status:status
# Map the Tomcat examples webbapp
[uri:/myapp/*]
info=Map the whole webapp
group=lb
__
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RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Hi,
Did you restart the Apache2 server? My understanding is JK only reloads it
only if the section you modified in workers.properties has ver defined.
Also, check your jk.log and Catalina.log files for errors.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 7:09 PM
To: Tomcat Users List
Subject: RE: Load balancing with apache2, mod_jk2 tomcat 5.0
Thanks but it doesn't seem to make any difference. For each tomcat server I
added sections like the following:
[ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
tomcatId=psahammerhead
It still only wants to use one of the servers. There are other properties
that
could be used but they're not documented too well. Any other suggestions
would
be greatly appreciated.
-Tom
--- Yang Xiao [EMAIL PROTECTED] wrote:
Hi,
I think you need to further define the workers with
{ajp13:psahammerhead:8009]
channel=channel.socket:psahammerhead:8009
group=lb
...
etc
hope this helps.
Yang
-Original Message-
From: Thomas D. Zeimet [mailto:[EMAIL PROTECTED]
Sent: Wednesday, April 14, 2004 10:17 AM
To: [EMAIL PROTECTED]
Subject: Load balancing with apache2, mod_jk2 tomcat 5.0
Hi,
I have set up four tomcat 5.0 servers for load balancing using an apache2
server and mod_jk2 on RedHat 9.0. The trouble that I am having is that
most
of
the user sessions are routed to only one of the tomcat servers even though
the
lb_factor for all is the same, 10. All tomcat servers seem to be working
since
I can disable all but one in the workers2.properties file to force that
tomcat
server to be used. Chnaging the lb_factor can also cause a different
tomcat
server to be used most of the time, but I haven't figured out how to
control
the balancing by lb_factor.
Below is the workers2.properties file that I am using.
Thanks for any help you can provide,
-Tom
# workers2.properties
[logger]
level=DEBUG
[config:]
debug=0
debugEnv=0
[uriMap:]
info=Maps the requests. Options: debug
debug=0
# Alternate file logger
[logger.file:0]
level=DEBUG
file=/usr/local/apache2/logs/jk2.log
#[shm:]
#info=Scoreboard. Required for reconfiguration and status with
multiprocess
servers
#file=/usr/local/apache2/logs/jk2.shm
#size=100
#debug=0
#disabled=0
[workerEnv:]
info=Global server options
debug=0
timing=1
# Default Native Logger (apache2 or win32 )
# can be overriden to a file logger, useful
# when tracing win32 related issues
#logger=logger.file:0
[lb:lb]
ver=1
info=Default load balancer.
debug=10
[channel.socket:psahammerhead:8009]
ver=1
graceful=0
info=A tomcat instance - psahammerhead.
debug=0
disabled=0
group=lb
tomcatId=psahammerhead
lb_factor=10
[channel.socket:psashovelhead:8009]
ver=1
graceful=0
info=A tomcat instance - psashovelhead.
debug=0
disabled=0
group=lb
tomcatId=psashovelhead
lb_factor=10
[channel.socket:psabonnethead:8009]
ver=1
graceful=0
info=A tomcat instance - psabonnethead.
debug=0
disabled=1
group=lb
tomcatId=psabonnethead
lb_factor=10
[channel.socket:psawinghead:8009]
ver=1
graceful=0
info=A tomcat instance - psawinghead.
debug=0
disabled=1
group=lb
tomcatId=psawinghead
lb_factor=10
[status:status]
info=Status worker, displays runtime informations
[uri:/jkstatus]
group=status:status
# Map the Tomcat examples webbapp
[uri:/myapp/*]
info=Map the whole webapp
group=lb
__
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