Round Robin

2007-08-16 Thread Dean Lonsdale
Hi all

We are currently trying to setup load balancing in our environment and as 
after testing the Load Balancing it would appear to be working. I have run 
up two applications sessions, one of which went to the 'A' tomcat worker 
and the other to the 'C' tomcat worker. The status page suggests that the 
workers are load balanced, although as yet the 'B' worker has only ever 
appeared with a status of 'N/A' (Unknown). Other workers have appeared 
with a status of 'OK'.
 
I suspect that this load balancer is not using  a 'Round Robin' algorithm. 
I also cannot see any way of setting this as a Load Balancer method. Below 
is our workers.properties file, could anyone please advise why a round 
robin approach may not be working pls ?

thanks in advance

# ==
# JK configuration directives
# ==
ps=/

# ==
# list the workers required as entry points from apache  by name
# ==

worker.list= ajp13, loadbalancer , status

# ==
# Single worker to handle all non load balanced requests
# (Esri IMS)
# ==

worker.ajp13.port=8009
worker.ajp13.host=localhost
worker.ajp13.type=ajp13

# ==
# Balanced set of workers to handle all load balanced requests
# (IMF Easimap)
# ==

# ---
# 1st Balanced worker Tomcat1
# ---

worker.tomcat1.port=8109
worker.tomcat1.host=localhost
worker.tomcat1.type=ajp13
worker.tomcat1.socket_keepalive=1
worker.tomcat1.socket_timeout=600
worker.tomcat1.lbfactor=100
worker.tomcat1.route=tomcat5_A
worker.tomcat1.connection_pool_timeout=300

# ---
# 2nd Balanced worker Tomcat2
# ---

worker.tomcat2.port=8209
worker.tomcat2.host=localhost
worker.tomcat2.type=ajp13
worker.tomcat2.socket_keepalive=1
worker.tomcat2.socket_timeout=600
worker.tomcat2.lbfactor=100
worker.tomcat2.route=tomcat5_B
worker.tomcat2.connection_pool_timeout=300

# ---
# 3rd Balanced worker Tomcat3
# ---

worker.tomcat3.port=8309
worker.tomcat3.host=localhost
worker.tomcat3.type=ajp13
worker.tomcat3.socket_keepalive=1
worker.tomcat3.socket_timeout=600
worker.tomcat3.lbfactor=100
worker.tomcat3.route=tomcat5_C
worker.tomcat3.connection_pool_timeout=300

#--
# Tomcat balancer
#--
worker.loadbalancer.type=lb
worker.loadbalancer.balanced_workers=tomcat1, tomcat2, tomcat3


# ==
# Tomcat status worker - gives status information on connected
# instances
# ==

worker.status.type=status






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Load Balancing Any Experts Out There Please :-)

2007-08-15 Thread Dean Lonsdale
All


We have built a workers.properties file with load balancing capability 
however would appreciate peoples thoughts on its structure as when we 
import this and attempt to run the application it knocks the app over. :-(

Any help greatly appreciated



Regards / Cordialement / Mit freundlichen Grüßen

-- 

 
Dean Lonsdale
 
Dean Lonsdale/UK/IBM
 
[EMAIL PROTECTED]
 
Systems Architect
IBM Systems  Technology Group
Senior Accredited IT Specialist
Tivoli Certified Consultant

IBM UK Ltd, Washway Road, Manchester
 
Ext: 07834 252463
Mobex: 264328
 
+44 (0)1253 731299
View the Systems Group website at 
http://w3-03.ibm.com/systemstechnology/index.html 






Unless stated otherwise above:
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741598. 
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU





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Re: Load Balancing Any Experts Out There Please :-)

2007-08-15 Thread Dean Lonsdale
Forgot to add the properties file my apologies



Regards / Cordialement / Mit freundlichen Grüßen

-- 

 
Dean Lonsdale
 
Dean Lonsdale/UK/IBM
 
[EMAIL PROTECTED]
 
Systems Architect
IBM Systems  Technology Group
Senior Accredited IT Specialist
Tivoli Certified Consultant

IBM UK Ltd, Washway Road, Manchester
 
Ext: 07834 252463
Mobex: 264328
 
+44 (0)1253 731299
View the Systems Group website at 
http://w3-03.ibm.com/systemstechnology/index.html 




Dean Lonsdale/UK/[EMAIL PROTECTED] 
15/08/2007 15:04
Please respond to
Tomcat Users List users@tomcat.apache.org


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Barry k Blackhall/UK/[EMAIL PROTECTED]
Subject
Load Balancing Any Experts Out There Please :-)







All 


We have built a workers.properties file with load balancing capability 
however would appreciate peoples thoughts on its structure as when we 
import this and attempt to run the application it knocks the app over. :-( 


Any help greatly appreciated 



Regards / Cordialement / Mit freundlichen Grüßen 

-- 

 
Dean Lonsdale 
  
Dean Lonsdale/UK/IBM 
  
[EMAIL PROTECTED] 
 
Systems Architect
IBM Systems  Technology Group
Senior Accredited IT Specialist
Tivoli Certified Consultant

IBM UK Ltd, Washway Road, Manchester 
 
Ext: 07834 252463
Mobex: 264328 
 
+44 (0)1253 731299 
View the Systems Group website at 
http://w3-03.ibm.com/systemstechnology/index.html 






Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number 
741598. 
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU 





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Load Balancing

2007-08-15 Thread Dean Lonsdale
Resend of the last mail removing signature attachments,

We have built a workers.properties file to incorporate load balancing 
however when we use this file it would appear that it prevents the 
application from functioning correctly, please can anyone comment on 
whether the load balancing parameters are set correctly.

Many thanks









Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number 
741598. 
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU





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Re: Load Balancing

2007-08-15 Thread Dean Lonsdale
=$(workers.tomcat_home)

#
# The JVM that we are about to use
#
# This is for Java2
#
# Windows
#worker.inprocess.jvm_lib=$(workers.java_home)$(ps)jre$(ps)bin$(ps)classic$(ps)jvm.dll
# IBM JDK1.3
#worker.inprocess.jvm_lib=$(workers.java_home)$(ps)jre$(ps)bin$(ps)classic$(ps)libjvm.so
# Unix - Sun VM or blackdown
#worker.inprocess.jvm_lib=$(workers.java_home)$(ps)jre$(ps)lib$(ps)i386$(ps)classic$(ps)libjvm.so

#
# And this is for jdk1.1.X
#
#worker.inprocess.jvm_lib=$(workers.java_home)$(ps)bin$(ps)javai.dll


#
# Setting the place for the stdout and stderr of tomcat
#
worker.inprocess.stdout=$(workers.tomcat_home)$(ps)logs$(ps)inprocess.stdout
worker.inprocess.stderr=$(workers.tomcat_home)$(ps)logs$(ps)inprocess.stderr

#
# Setting the tomcat.home Java property
#
#worker.inprocess.sysprops=tomcat.home=$(workers.tomcat_home)

#
# Java system properties
#
# worker.inprocess.sysprops=java.compiler=NONE
# worker.inprocess.sysprops=myprop=mypropvalue

#
# Additional path components.
#
# worker.inprocess.ld_path=d:$(ps)SQLLIB$(ps)bin
#

worker.server1.type=ajp13
worker.server1.port=8109
worker.server1.socket_timeout=60
worker.server1.socket_keepalive=true
worker.server1.lbfactor=1

#
worker.status.type=status







Dean Lonsdale/UK/[EMAIL PROTECTED] 
15/08/2007 15:28
Please respond to
Tomcat Users List users@tomcat.apache.org


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cc

Subject
Load Balancing







Resend of the last mail removing signature attachments, 

We have built a workers.properties file to incorporate load balancing 
however when we use this file it would appear that it prevents the 
application from functioning correctly, please can anyone comment on 
whether the load balancing parameters are set correctly. 

Many thanks 








Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number 
741598. 
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU 





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IBM United Kingdom Limited - Registered in England and Wales with number 
741598. 
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU







Error in access_log when launching an application GUI

2007-08-10 Thread Dean Lonsdale
Hi all


I am trying to launch the ArcIMS ADmin Utility GUI (GIS Application) and 
receiving the following error in the access_log

[info] jk_handler::mod_jk.c (2254): No body with status=404 for 
worker=ajp13

MY mod_jk file looks as follows. Any help much appreciated

loadmodule jk_module modules/mod_jk.so
jkworkersfile /usr/local/apache/conf/workers2.properties
jklogfile logs/mod_jk.log
jkloglevel info
jklogstampformat [%a %b %d %H:%M:%S %Y] 
JkMount /*.jsp ajp13
JkMount /*.java ajp13
JkMount /*.class ajp13
JkMount /servlet* ajp13
JkMount /imf/* ajp13
JkMount /manager/* ajp13
JkMount /admin/* ajp13
JkMount /jkstatus/* ajp13
JkMount /scripts* ajp13
JkMount /.esri* ajp13


Regards / Cordialement / Mit freundlichen Grüßen

-- 

 
Dean Lonsdale
 
Dean Lonsdale/UK/IBM
 
[EMAIL PROTECTED]
 
Systems Architect
IBM Systems  Technology Group
Senior Accredited IT Specialist
Tivoli Certified Consultant

IBM UK Ltd, Washway Road, Manchester
 
Ext: 07834 252463
Mobex: 264328
 
+44 (0)1253 731299
View the Systems Group website at 
http://w3-03.ibm.com/systemstechnology/index.html 






Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number 
741598. 
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU







Converting workers2.properties file to workers.properties

2007-08-10 Thread Dean Lonsdale
All

We are moving from JK2 to JK and would like some information/help on how 
to convert a workers2.properties file (JK2) to workers.properties (JK) any 
help greatly appreciated..apols but this question comes from an Apache 
novice..

Regards / Cordialement / Mit freundlichen Grüßen

-- 

 
Dean Lonsdale
 
Dean Lonsdale/UK/IBM
 
[EMAIL PROTECTED]
 
Systems Architect
IBM Systems  Technology Group
Senior Accredited IT Specialist
Tivoli Certified Consultant

IBM UK Ltd, Washway Road, Manchester
 
Ext: 07834 252463
Mobex: 264328
 
+44 (0)1253 731299
View the Systems Group website at 
http://w3-03.ibm.com/systemstechnology/index.html 






Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number 
741598. 
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU







Testing Tomcat - HELP

2007-08-09 Thread Dean Lonsdale
Does anyone know how to verify whether Tomcat is operational using a 
browser or other wise !!!

Help appreciated ...many thanks 



Regards / Cordialement / Mit freundlichen Grüßen

-- 

 
Dean Lonsdale
 
Dean Lonsdale/UK/IBM
 
[EMAIL PROTECTED]
 
Systems Architect
IBM Systems  Technology Group
Senior Accredited IT Specialist
Tivoli Certified Consultant

IBM UK Ltd, Washway Road, Manchester
 
Ext: 07834 252463
Mobex: 264328
 
+44 (0)1253 731299
View the Systems Group website at 
http://w3-03.ibm.com/systemstechnology/index.html 






Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number 
741598. 
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU







MOD_JK TEST

2007-08-09 Thread Dean Lonsdale
Hi guys

Can anyone let me know of a test to prove whether the mod_jk is working 
between Apache and Tomcat please ?

many thanks 

Regards / Cordialement / Mit freundlichen Grüßen

-- 

 
Dean Lonsdale
 
Dean Lonsdale/UK/IBM
 
[EMAIL PROTECTED]
 
Systems Architect
IBM Systems  Technology Group
Senior Accredited IT Specialist
Tivoli Certified Consultant

IBM UK Ltd, Washway Road, Manchester
 
Ext: 07834 252463
Mobex: 264328
 
+44 (0)1253 731299
View the Systems Group website at 
http://w3-03.ibm.com/systemstechnology/index.html 






Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number 
741598. 
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU