Load balancing for BPEL Cluster

Can anybody tell how to configure the load balancer in BPEL Cluster ..? I am not able to get the correct documents for that. I want the request from the client can be redirect to any of the cluster server that will be having the PPEL Process deployed.
Can i use third party load balancer also or can i use oracle http server as load balancer ....how to configure in both the case?

Hi Dominik.
Thanks for responding to my message.
Where could i find more info relating to the WEB dispatcher.
I also posted a message on OSS and SAP did not mention
a WEB Dispatcher. (Startup Framework and the J2ee dispatcher handing the load balancing)
Is the WEB dispatcher a must or are there alternate solutions. I am still confused on this topic ??
On the current EP5 release, the load balancing is handled
via MS Load Balancing.
Thanks and appreciate the help !!
Morgan
Message was edited by: Morgan Moodley

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Hi,
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http://teachmeoracle.com

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          I have a webservice I'd like to run from a cluster for scaling purposes. I dont
          see a way to load balance a SOAP based webservice on the server. What (among
          many things) am I missing? I'm using wls 7.0 sp4. Any ideas would be appreciated.
          Thanks


The webservice is a web application. You should be able to cluster it
          like any other web application. If you've implemented your service as a
          Statless Session Bean then you should be able to cluster it just like
          any other Stateless Session Bean. That is there's really no difference
          when it comes to physical implementation of a web service
          ~Ryan Upton
          fred wrote:
          > I have a webservice I'd like to run from a cluster for scaling purposes. I dont
          > see a way to load balance a SOAP based webservice on the server. What (among
          > many things) am I missing? I'm using wls 7.0 sp4. Any ideas would be appreciated.
          >
          > Thanks

Load balancing for JSPs and servlets

Hi:
          I am using IIS as the proxy server, with the WLS plug-in, to a WLS
          cluster. This provides round robin load balancing just fine. Will it
          provide weight based load balancing if I set 'weblogic.system.weight'
          differently on each server, or is that not relevant for clustering JSPs
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          Sincerely,
          Ashish


Currently the plugins ( for NES, IIS and Apache) just use the round robin
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          RMI/EJB stubs.
          To use this property for your JSP/Servlet load balancing you have to use
          weblogic server as proxy fron-ending your weblogic cluster.
          --Viresh Garg
          Ashish Vimal wrote:
          > Hi:
          > I am using IIS as the proxy server, with the WLS plug-in, to a WLS
          > cluster. This provides round robin load balancing just fine. Will it
          > provide weight based load balancing if I set 'weblogic.system.weight'
          > differently on each server, or is that not relevant for clustering JSPs
          > and servlets?
          > Sincerely,
          > Ashish

Load balancing without a cluster...!!!!????

Hi boys!
 I have a question for you: my NES proxy server can realize a load
 balancing between 2 weblogic 6.0 servers that are NOT IN A CLUSTER?
 I've done some tests configuring the obj.conf like the 2 weblogic
 servers were in cluster, but I dont' understand if it works correctly.
 May be I ask too much ...
 Thanks
 Patrizia


 I'm assuming your using one browser to test this.
 The first time you access a servlet or a JSP that uses session
 tracking, the WL server will store a cookie in the browser. This
 cookie identifies the IP address and port number of the WLS where
 the request was executed (the Primary), and if it is a clustered
 configuation with session replication enable, also a Secondary
 server.
 The next time you make a request to iPlanet (or Apache), wlproxy
 looks at the cookie and directs you to the same WL server - so
 you won't see any load balancing.
 If you quit out of all your browsers, then start a new browser,
 and access it again, you won't have a WL cookie, and the request
 will get load balanced to one of the WL servers.
 Mike
 Patrizia MB <[email protected]> wrote:
 >Thanks Mike,
 >but I've some problems in verifying what you've asserted.
 >In my obj.conf I've put
 >
 > <Object name="wl" ppath="*/servlet/*">
 >
 > Service fn="wl-proxy" WebLogicCluster="10.0.0.3:7060,10.0.0.8:7060"
 >DebugConfigInfo="ON" Debug="ON"
 >
 > </Object>
 >
 >Note that I have 2 NOT-Clustered WLS instances behind
 >NES: I used
 >the "WebLogicCluster" property in the obj.conf only because
 >this
 >is the only way - as far as I know ! - to specify multiple
 >nodes to the
 >proxy.
 >
 >
 >With your suggestion, accessing the URL
 >"http://<your-nes-server>/?__WebLogicBridgeConfigInfo"
 >I can see this:
 > Query String: '__WebLogicBridgeConfig'
 > This entry is cluster aware.
 > ClusterID (from obj.conf): "10.0.0.3:7060,10.0.0.8:7060"
 > WebLogic Cluster List:
 > 1.Host: '10.0.0.8' Port: 7060 Primary
 > General Server List:
 > 1.Host: '10.0.0.3' Port: 7060
 > 2.Host: '10.0.0.8' Port: 7060
 >
 >
 >
 >
 >
 >In spite of that, there's no load-balancing!
 >I checked the 2 access files on the 2 nodes, and I see
 >that all my
 >requests go to the same server 10.0.0.8.
 >Why?
 >According to which logic 10.0.0.8 has been defined the
 >Primary? (They
 >are both Administration Servers)
 >
 >I hope you'll answer to my questions!
 >
 >TIA
 >
 >Patrizia
 >
 >
 >
 >
 >
 >
 >Mike Reiche wrote:
 >
 >> The wlproxy for NES will round-robin requests to multiple
 >WL
 >> servers if they are clustered or not clustered.
 >>
 >> You can get some additional information by adding the
 >property
 >> DebugConfigInfo=ON to the WL configuration in obj.conf
 >then
 >> hitting the URL...
 >> http://<your-nes-server>/?__WebLogicBridgeConfigInfo
 >>
 >> Check the WL NSAPI doc.
 >>
 >> Mike
 >>
 >> Monteforte Patrizia <[email protected]>
 >wrote:
 >> >Hi boys!
 >> >I have a question for you: my NES proxy server can
 >realize
 >> >a load
 >> >balancing between 2 weblogic 6.0 servers that are
 >NOT
 >> >IN A CLUSTER?
 >> >I've done some tests configuring the obj.conf like
 >the
 >> >2 weblogic
 >> >servers were in cluster, but I dont' understand if
 >it
 >> >works correctly.
 >> >May be I ask too much ...
 >> >
 >> >Thanks
 >> >
 >> >Patrizia
 >> >
 >

Load Balancing for EBS R12

Hi husssein,
I have a pc shuttle with test EBS R12 on RHEL4.6.
I want to practise/test installing "appsTier Load Balancing" because this is one of our client's requirement.
I have 1 laptop and i can borrow another from my officemate. I will install rhel4.6 both on the 2 laptops.
Is it possible to simulate testing on "appsTier Load Balancing" using the 2 laptops? and the dbTier resides on the
shuttle pc?
Thanks a lot

Hi,
Well, from your experience, which is difficult to setup/configure > Load Balancer or RAC?I would not compare, but personally I believe configuring load balancing is more straightforward.
By the way the term "RAC" is quite misleading. It means "Real Application Cluster" and yet it is used or point to the database Tier, when is should be on tha AppsTier because of the word "Application".
So why cannot they RAC the AppsTier?As mentioned above, RAC is a database feature which means you will need to have an Oracle database installed (Enterprise Edition) to configure RAC. For the application tier, you will have to use load balancing. Both RAC and Load balancing are forms of Clustering.
Regards,
Hussein

Hadrware load balancing for WLS 5.1

Rather than using the proxy plug-in to determine which server to dispatch a request to in case of failover, I would like to use hardware load balancer. So on normal conditions, the load-balancer would look at the primary server in the cookie and route the request accordingly. If it gets no response, it would reexamine the cookie and forward the request to the secondary server holding the state.
 Has anybody done this? Which hardware load balancer were you using? Is there a definitive spec for the weblogic cookie so that we can try configuring the load balancer? (in the BEA docs I can only find info about the position of the primary server in the cookie).
 Thanks, Matt


http://e-docs.bea.com/wls/docs60/cluster/servlet.html#1008984
 -- Anand
 "Mark Vaughn" <[email protected]> wrote in message
 news:[email protected]...
 >
 > Even with WLS 6.1, how will the hardware load balancer know who the
 secondary server
 > is when it needs to failover a session? For example, in a 3 member
 cluster, when
 > server one dies, how does the HLB know whether server 2 or server 3 were
 defined
 > as the secondary for that session. Unless something has changes in WLS6.1,
 there
 > is only one primary and only one secondary.
 >
 > Matt, I use Foundry ServerIrons to load balance my iPlanet webservers, but
 I strongly
 > suggest the Weblogic plugin if you will be using a 3rd party webserver in
 front
 > of WebLogic. That plugin has all kinds of debug settings and extra
 features that
 > allow it to communicate with the background WLS cluster. That allows it to
 make
 > decisions and deliver performance no HLB will give you. Don't get me
 wrong, HLB's
 > have there place and deliver some really good features, but that is not a
 place
 > I would consider using one.
 >
 >
 > Kumar Allamraju <[email protected]> wrote:
 > ><!doctype html public "-//w3c//dtd html 4.0 transitional//en">
 > ><html>
 > >Hi:
 > >WLS 5.1 clustering is not designed to work with Hardware load
 balancers.
 > > I would suggest you to try with WLS 6.1
 > >--
 > > Kumar
 > >Matt Hudson wrote:
 > ><blockquote TYPE=CITE>Rather than using the proxy plug-in to determine
 > >which server to dispatch a request to in case of failover, I would like
 > >to use hardware load balancer. So on normal conditions, the load-balancer
 > >would look at the primary server in the cookie and route the request
 > >accordingly.
 > >If it gets no response, it would reexamine the cookie and forward the
 > >request
 > >to the secondary server holding the state.
 > >Has anybody done this? Which hardware load balancer were you
 > >using?
 > >Is there a definitive spec for the weblogic cookie so that we can try
 > >configuring
 > >the load balancer? (in the BEA docs I can only find info about the
 position
 > >of the primary server in the cookie).
 > >Thanks, Matt</blockquote>
 > ></html>
 > >
 >

ISE 1.2 - Multiple NICs/Load Balancing for DHCP Probe

Hello guys
Just prepping an ISE 1.2 patch 8 setup in our organization. I am going for the virtual appliances with multiple NICs. It will be a distributed deployment with 4 x PSNs behind a load balancer and there is no requirement for wireless or guest user at the moment. I've got 2 points I will like to get some guidance on:
Our DC has a dedicated mgmt network and I plan to IP the gig0 interface of the PANs, MNTs and PSNs from this subnet. All device admin, clustering, config replication, etc will be over this interface. However, RADIUS/probe/other user traffic to the ISE PSNs will be over the gig1 interface which will be addressed from another L3 network. Is this a supported configuration in ISE?
I intend to use the DHCP probe as part of device profiling and will ideally like to have just an additional ip helper to add to our switch SVI config. Also, it will appear that WLCs can only be configured for 2 DHCP servers for a given network so another consideration for when we bringing our WLAN in scope. We however use ACE load balancers within our DC and from what I have read, they do not support DHCP load balancing. Are there any workarounds to using the DHCP probe with multiple PSNs without having to add each node as an ip helper/DHCP server on the NADs?
Thanks in advance
Sayre

Hello Sayre-
For Question #1:
Management is restricted to GigabitEthernet 0 and that cannot be changed so you should be good there
You can configure Radius and Profiling to be enabled on other interfaces
Even though you are not using guest services yet, you can dedicate an interface just for that. As a result, you can separate guest traffic completely from your production network
Take a look at this link for more info:
http://www.cisco.com/c/en/us/td/docs/security/ise/1-2/installation_guide/ise_ig/ise_app_c-ports.html
For Question #2
If you are using a Cisco WLC and running code 7.4 and newer you don't need to mess with the IP helper configurations.
The controller can be configured to act as a collector for client profiling and interact with the DHCP thread along with the RADIUS accounting task that is running on the controller. The controller receives a copy of the DHCP request packet sent from the DHCP thread and parses the DHCP packet for two options:
–Option 12—HostName of the client
–Option 60—The Vendor Class Identifier
After this information is gathered from the DHCP_REQUEST packet, a message is formed by the controller with these option fields and is sent to the RADIUS accounting thread, which is in turn transmitted to the ISE in the form of an interim accounting message.
Both DHCP and HTTP profiling settings are located under the "Advanced" configuration tab in the WLC
On the other hand, you can also use Anycast for profiling. You can check out some of Cisco Live's sessions for more info on that. Here is one that is from a couple of years (There are more recent ones that are available as well):
http://www.alcatron.net/Cisco%20Live%202013%20Melbourne/Cisco%20Live%20Content/Security/BRKSEC-3040%20%20Advanced%20ISE%20and%20Secure%20Access%20Deployment.pdf
I hope this helps!
Thank you for rating helpful posts!

Load balancing for BPEL Cluster

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