Cisco ACE20 Load balancing issues

Dear All,
I have a problem with the ACE 20 load balance
To start with following is our architectural request flow:
Load Balancer --> Webseal /(reverse proxy) --> HTTP Server --> Portal Server
We have Hardware Load Balancer Cisco ACE20.
When we access our portal from Webseal server it works totally fine without any issue, but when we access the same application using ACE we face the following issues:
1) Some of the links on do not work. For eg: We have a link "subscribe" which points to https://intranet/abc/wps/portal/subscription , whenever we click on this link, the request is directed to https://intranet/abc/wps/portal i.e homepage
2) URL redirection does not work We have some links which have a url forwarding or redirection for example when we open https://intranet/ef/quickplace it forwards the requests to https://intranet/ef/quickplace/Main.nsf?opendocument....., but this redirection fails and again the request is thrown to homepage i.e https://intranet/abc/wps/portal
3) The response of the request and the overall portal when accessed via ACE is very sluggish and it takes 20 seconds for homepage to load, whereas the homepage loads in 4 secs when accessed via webseal.
below is the ACE details. Kindly provide the your inputs to resolve this issue. will rate all the suggestions
Hardware Product Number: ACE20-MOD-K9
Card Index:     207
Hardware Rev:   2.3
Feature Bits:   0000 0002
Slot No. :      7
Type:           ACE
Software
loader:    Version 12.2[120]
system:    Version A2(1.4) [build 3.0(0)A2(1.4) adbuild_11:54:12-2009/03/05_/a
uto/adbu-rel2/rel_a2_1_4_throttle/REL_3_0_0_A2_1_4]
system image file: [LCP] disk0:c6ace-t1k9-mz.A2_1_4.bin
installed license: ACE-SEC-LIC-K9

Dear all,
Please suggest on this issue.
BS

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Hi,
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!Generated on 10/06/2010 16:51:34
!Active version: sg0810106
configure
!*************************** GLOBAL ***************************
ip route 0.0.0.0 0.0.0.0 132.186.199.1 1
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CSS11501#
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Image below has a Red Square around the      Model Number and HW version of an older RV042 as a reference. HW is indicated      with 'v' and rational number, i.e. v1.1, v2.0. Your sticker may look      slightly different, but the content will be the same:
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Firmware v 1.3312.19-tm Release Notes:      http://www.cisco.com/en/US/docs/routers/csbr/rv042/release/notes/RV042_RN_v1-3-12-19-tm.pdf
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http://www.cisco.com/cisco/software/type.html?mdfid=282414010&flowid=784
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If you have problems with these steps, repost with the steps you took and the results. Let us know your results.

Cisco ace Load balancer not maintaining session persistence

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Poool:
WEB1
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I use weblogic6.1 with sp2+windows 2000.I develop a web application and deploy
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I don't set any special parameter.And the weight of the two clustered server is
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Thanks!
"cramer" <[email protected]> wrote:
>
We're in performance test of a large-scale clustered deployment based
on WLS 5.1sp10.
Due to scalability/functionality issues, some of which we've seen firsthand
and
some of which we've been informed of by associates as well as BEA representatives,
we've chosen to implement multiple clusters with a maximum of three nodes
each.
These clusters will be fronted by a web server tier consisting of iPlanet
servers
using the proxy plugin.
Due to hardware constraints (both in test and in production), however,
we've configured
the iPlanet servers to route across the multiple clusters. In our test
environment,
for instance, we've got a single iPlanet server routing across two 3-node
clusters,
and the configuration in obj.conf is as follows:
<Object name="application" ppath="*/application">
Service fn="wl-proxy" \
WebLogicCluster="clusterA_1:9990,clusterB_1:9991,clusterA_2:9990,clusterB_2:9991,clusterA_3:9990,
clusterB_3:9991" \
CookieName="ApplicationSession"
</Object>
Our issue is that the load-balancing doesn't appear to work across the
clusters.
We're seeing one cluster get about 90% of the load, while the other
receives
only 10%.
So, the question (finally!) is: Is this configuration correct (i.e.,
will it
work according to the logic of the proxy plugin), and is it appropriate
for this
situation? Are there other alternative approaches that anyone can recommend?
Thanks in advance,
cramer

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[TCP Previous segment not captured] Continuation or non-HTTP traffic.
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Regards, Amit Gupta

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As I go back and look at your analysis, I think you should probably look at upgrading to Project Server 2013. They made some improvement in load balancing and the management of distributive cache.
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Michael Wharton, MVP, MBA, PMP, MCT, MCTS, MCSD, MCSE+I, MCDBA
Website http://www.WhartonComputer.com
Blog http://MyProjectExpert.com contains my field notes and SQL queries

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Hi,
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The application is based on activex..
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Thanks for the clarification.
I have two more issues too...
1. The load balancing of the application between the two servers are not even. Actually the traffic from the users keep hitting only one server, I understand the point of sticky method used in our case, but even atleast the connection from another client machine should go to the other server,but it is not the case... traffic from all the clients goes to only one server..
what could be the possible reason for the same...
My config is as below...
service SERVER-1
port 80
protocol tcp
keepalive port 80
keepalive type tcp
redundant-index 4
ip address 10.6.223.87
active
service SERVER-2
port 80
protocol tcp
keepalive port 80
keepalive type tcp
ip address 10.6.223.77
redundant-index 5
active
owner WEB
content WEB
add service SERVER-1
add service SERVER-2
redundant-index 104
vip address 10.6.223.78
protocol tcp
port 80
url "/webretrieve*"
advanced-balance sticky-srcip
active
2. Slow response of the application when users access application through VIP address(CSS), what can be done further in the configuration to improve the performance?? or any thing else I can do...
Regards

JSF and load balancing issues

Hello,
We are having a difficult time getting our app to work correctly on our load balanced system. Any help / suggestions would be greatly appreciated.
We have a very basic load balancer which is in round robin mode (this cannot be changed), two separate vms, each with an instance of apache(2.0.54) and tomcat(6.0.14). Each apache talks only to the tomcat on the same vm and the tomcats are configured to session replicate with each other (which is happening).
When I log in to the app and start pressing a few buttons there are no problems for a little while. I then leave the screen idle for 1 minute and resume pressing buttons. The main session bean which holds information about where the user is and other key information, gets its constructor called and is set back to default and the page goes back to the main menu. Immediately before the bean is reset, the logs show the following:
[MyApp] 17 Jun 2009 15:33:27,514 WARN: [ajp-8009-2 LoggerListener.onApplicationEvent(60)] : Authentication event AuthenticationSuccessEvent: v; details: (etc etc removed…)This is what the two logs look like:
VM1 - Authentication event
VM2 - Main menu
VM2 - Presss a button – progress a screen
VM2 - Presss a button – progress a screen
VM2 - Presss a button – progress a screen
VM2 - Presss a button – progress a screen
[wait 1 min]
VM1 - Authentication event
VM1 - Bean reset
Processing continues, but screen is redirected to main menu
We have the distributable tag in the web.xml file and javax.faces.STATE_SAVING_METHOD is set to client. Its set to client as the app will not work at all with it set to server (keeps asking for the user to re-log in).
Thank you,
Victoria

Looks like a Tomcat issue to me. JSF is not going to timeout in 1 minute. You might want to check your Tomcat replication settings. Note try to do a very simple loadbalancing application that just echos the Tomcat is executing on.

Load Balancing Issues SOMEBODY HELP ME!!

Good Morning.
A few days ago we implemented Load Balancing in our company, I printed a step by step procedure from MS and just follow it thinking that once I did that everything was going to be ok, but I am some issues that I managed to fix, but now I am stock in one
that I just can't figure it out, here I go.
When regular users try to connect to the Farm using the external IP they can't connect, we checked firewall seems to be ok, we check the configuration we did and we didn't miss any step, NOW here is the crazy part, when we use our Admin ID we can connect,
so I thought maybe is an Active Directory thing, but I don't know where to look or what to do so my questions are,
Can this be a licensing issue?
Do I have to have my TSBroker as part of my group of PC in the firewall?
Can it be a certificate issue? (not too sure because I can connect as an admin)
Can it be permissions to log in to the servers?
My co-worked is telling me now that if TS Broker sent them to TS1 they can connect but if TSBroker send them to the other two members of the farms they can't connect, TS1 is the original TS before this whole Load Balancing thing.
we tried so many solutions that we can find online and come up with and nothing seems to be working, so what do I do? What did I do wrong when I configure the Load balancing? is there any step beside what MS told me that I am missing...
PLEASE HELP!!
Thank you..

Hi Rodrigo,
Thank you for posting in Windows Server Forum.
What’s your server OS in your environment?
Firstly see that, if you have not set up RD Licensing server and don’t have RDS CAL then your administrator can only get access for RDP connection (only 2 connection for Admin purpose). Now if you want more than 2 connection you need to setup RD Licensing server,
activate it, purchase RDS CAL and install it. After installing, you need to see that your user have enough permission to access RDS server and your user must be added under “Remote Desktop User” local group under RDS Server.
As you have commented that your admin can able to connect so I think you must have the issue with user permission, please go through above points and check the result.
Please check below article for more details.
1. TS Session Broker Load Balancing Step-by-Step Guide (Server 2008)
2. Checklist: Create a Load-Balanced RD Session Host Server Farm by Using RD Connection Broker (Server 2008 R2)
Hope it helps!
Thanks.
Dharmesh Solanki

Load balancing issues?

Could someone help me with load balancing, current stats:
I have a limited understanding, but from what I can make out, we have a significant number of clients being denied association and load balancing to different AP's but then the candidate count suggests a significant number of clients that failed to load balance, presumably because there wasnt an AP available in range that wasn't busy?
Uptime is 27 days, client count can reach around 220 at busy times, 63 AP's in the building 1142's, 5508 controller. I am wondering if increasing the window size would offer a more robust solution, or will this just degrade user experience further?
I am having a number of issues with failed client association now, and devices just not being able to operate wirelessly at all
Client count reaching 25 on some AP's

I guess per radio per AP client count is more in your case, clients more than the threshold are being shown busy status ( code 17 ) by AP. Therefore, clients are unable to associate to that AP. When the number of retries are over , they are denied. I guess there are network holes as well ( no coverage b/w the cells of differenet APs ). You can increase the window count , however, it depends on the AP model finally ( max. no. of clients associated ).

OSB Load balancing issue

We have a situation in our project.
We have weblogic8 sp5 server having a MDB deployed which consumes messages from distributed queues created on WLS8. OSB business services post messages on these distributed destinations.
Set up:
Non production environements have 2 instances of wls8 servers and 2 instances of OSB(weblogic) servers.
Production environments have 4 instances of wls8 managed servers and 2 instances of OSB(weblogic) servers.
Weblogic 8 server has a custer created with only hostname comma seperated. e.g. host1,host2.
OSB(weblogic) server has cluster created with hostname and port comma seperated. e.g. host1:port,host2:port.
Scenario 1.
When wls8 cluster address is used in OSB business services, load balancing is not happening. Messages go on only one of the wls8 managed server. If this server goes down,then only messages goes on the other server. With this, we have got fail over and not load balancing.
Scenario 2.
When wls 8 managed server urls are used with comma seperated in OSB business service, some times load balancing happens. This is also not conclusive as when any of the wls8 managed server goes down and comes up, load balancing stops working and all the messages goes to one of the up servers.
Scenario 3.
On produciton environmet, we have 4 instances of wls8 managed servers and 2 instances of OSB(weblogic) managed servers.
As discussed in scenario1, when cluster address is used, load balancing does not happen and all the messages go to 1 of the 4 managed servers. When comma seperated urls are used, some times load balancing happenes but it is load balanced in 2 of the wls8 managed servers. Other 2 do not get any messages.
We have custom error handling done to catch all the errors occured when any exceptions occurs in proxy service or while invoking business service. Tried adding 4 different urls in end point uri of busness services. If any of the endpoint is down, it gives an error and message flow gets aborted. Tried with enabling retry count. With this, when any endpoint down, it raises an error which is collected in custom error collector and then tries with another available uri. With this, for any error and after successful message flow, an error is logged.
Any pointers on above points will be helpful to solve our loadbalncing issue.
Regards,
Pravin
Edited by: pravinkapile on Oct 11, 2009 10:03 PM

Pravin,
I doubt affinity to Server is somehow configured on the connection factory? Can you please check connection factory configuration?
Manoj
http://download.oracle.com/docs/cd/E12840_01/wls/docs103/wlsmbeanref/core/index.html (JMSConnectionFactoryBean)
Overview
The load-balancing parameters allow client to choose how they wish to distribute the work to the configured servers.
Attributes
This section describes the following attributes:
* LoadBalancingEnabled
* ServerAffinityEnabled
LoadBalancingEnabled
Specifies whether non-anonymous producers created through a connection factory are load balanced within a distributed destination on a per-call basis.
If enabled, the associated message producers are load balanced on every send() or publish() .
If disabled, the associated message producers are load balanced on the first send() or publish().
Privileges     Read/Write
Type     boolean
Default Value     true
ServerAffinityEnabled
Specifies whether a server instance that is load balancing consumers or producers across multiple members destinations of a distributed destination, will first attempt to load balance across any other physical destinations that are also running on the same server instance.
Privileges     Read/Write
Type     boolean
Default Value     true
Edited by: mneelapu on Oct 12, 2009 11:16 AM

Cisco ACE20 Load balancing issues

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