Load Balancing in Clustered Weblogic 12c

Hi,
Weblogic.........: 12.1.3
OS..................: Oracle Enterprise Linux 6.3
We have configured a Clustered Weblogic (2 virtual servers) successfully. Now we are searching for some good Load Balancing solutions. I've tested a ProxyServlet, but it didin't really solve the question, because this kind of load balancing only balances apps in the same server.
Is it mandatory to use a third-party solution, like an Apache Httpd Server, or Big IP? In fact, i would like to know initially for some viable solutions to provide a load balancing solution to a 2-server Weblogic 12c Solution.
Thanks in advance.

Hi,
It is not manadatory, and it is possible to load balance apps on different servers with the ProxyServlet. It's only that this will be running on a server from where the others need to be accesable.
Also, it depends on what you are using this environment for. The ProxyServlet is a good solution if you want to replicate an Enterprise environment and test the load balancing with a WebLogic cluster. However, if you want to run Production applications in this environment, then consider the above suggestions: either a WebServer or a dedicated external Load Balancer.
Regards

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Hi Inguru,
Per my knowledge, SharePoint only supports Load balancing and SQL support clustering.
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http://community.bamboosolutions.com/blogs/sharepoint-2013/archive/2014/01/07/network-load-balancing-for-sharepoint-2013-part-three-installing-network-load-balancing-on-wfe1-in-a-three-server-farm.aspx
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weblogic.servlet.proxy.HttpClusterServlet
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Sticky load balancing without clustering?

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          Mike Gorman, Director of Architecture
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          Charlotte, NC
          704-643-1000 x518
          http://www.youcentric.com


Thought I read somewhere that you must have different IP addresses for each
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          Mike Gorman wrote:
          > I don't need any type of session replication. I just want to run two
          > instances of Weblogic on one machine, one IP, two different ports.
          >
          > If I run a third instance of Weblogic for proxying on the same machine
          > on yet another port, can I take advantage of the HttpClusterServlet's
          > sticky load balancing capabilities if the two Weblogic instances I want
          > to proxy between are not participating in a cluster?
          >
          > All we require is to have an IP & port that we can hit that will
          > round-robin the HTTP requests between the two Weblogic instances, and
          > send all subsequent HTTP requests with the same session to the same
          > Weblogic instance it sent it to before. Can this work? Thanks in
          > advance,
          >
          > mg
          >
          > --
          > Mike Gorman, Director of Architecture
          > YOUcentric, Inc.
          > Charlotte, NC
          > 704-643-1000 x518
          > http://www.youcentric.com

Who takes care of load balancing work in weblogic cluster ?

Hi Folks,
How load balancing is handled internally by weblogic cluster ? Does Admin server takes care of cluster load balancing ? According to me Admin has nothing to do with load balancing in cluster . Manage server continue to run even when Admin server is down.
I am not looking for explanation about different load balancing algorithm. I am interested in who executes those algorithms in weblogic cluster and how .
Cheers
B.

Hi,
You need to configure loadbalancer and there are different ways to do this. Please go through the below thread to user Apache Loadbalancer.
problem with Apache Proxy plugin
Regards
Suresh.

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Much Appreciated,

I came across this link which says ‘WebLogic Server does not always load balance an object’s method calls.” And has few more details about the load balancing strategy of weblogic.
http://download.oracle.com/docs/cd/E11035_01/wls100/cluster/load_balancing.html#wp1026599
http://download.oracle.com/docs/cd/E11035_01/wls100/cluster/load_balancing.html
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          Regards,
          Frank Olsen
          Stonesoft


Rick,
You may want to look at the Alteon and F5 configuration we have on edocs.
Take a look at the following URLs for a possible solution
http://edocs.bea.com/wls/docs61/cluster/alteon.html#591902
http://edocs.bea.com/wls/docs61/cluster/bigip.html#591902
Chuck Nelson
DRE
BEA Technical Support

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Hi All,
Please provide any guidelines on how to enable Load Balancing in Bea Weblogic 8.1
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I want to setup load balancing such that any 1 of 4 ports responds when a central URL is clicked by the user.
Any guidelines are welcome.

Review the document How to Implement Load Balancing on SAP BusinessObjects Planning and Consolidation, version for SAP NetWeaver

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I want to know the difference between Load Balancing and Clustering.
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Hardware load balancing with session stickiness

Hello,
          We are looking for a hardware based solution to load balance 4
          unclustered weblogic servers. These servers are software replicas of
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          Having worked on Cisco load balancer and WLS clustered, you would loose sessions
          when the requests are failed over.
          S
          "Shawn Kircher" <[email protected]> wrote:
          >
          >Has anyone got this type of scenario working where you load balance sticky
          >sessions
          >from a Cisco load balancer between non-clustered weblogic servers?
          >
          >Thanks,
          >
          >Shawn
          >
          >"Aravind Krishnasamy" <[email protected]> wrote:
          >>F5 or BigIp provides hardware level load balancing and it injects date
          >>inside weblogic cookie and maintains server affinity.
          >>Thanks
          >>Aravind
          >>"ageorge" <[email protected]> wrote in message
          >>news:[email protected]...
          >>> Hello,
          >>>
          >>> We are looking for a hardware based solution to load balance 4
          >>> unclustered weblogic servers. These servers are software replicas
          >>of
          >>> each other and share a common database. We need a solution that
          >>> provides session level server stickiness based on jsessionid as both
          >>a
          >>> cookie and url rewrite. Currently we have Cisco load balancers which
          >>> do not handle the url rewrite due to the fact the the load balancer
          >>> only "sees" what is after the question mark in the url and the
          >>> jsessionid is before the question mark. Example:
          >>>
          >>>
          >>http://somehost.com/some/url.jsp;jsessionid=26D5C566075663ABD8E17AD255974323
          >>?parm=value
          >>>
          >>> I'm sure we are not the only ones trying to do this. Any suggestions
          >>> would be greatly appreciated.
          >>>
          >>> Thanks,
          >>>
          >>> Alan George
          >>
          >>
          >

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

Hi boys!
          I have a question for you: my NES proxy server can realize a load
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          I've done some tests configuring the obj.conf like the 2 weblogic
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          May be I ask too much ...
          Thanks
          Patrizia


          I'm assuming your using one browser to test this.
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          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/*">
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          > Service fn="wl-proxy" WebLogicCluster="10.0.0.3:7060,10.0.0.8:7060"
          >DebugConfigInfo="ON" Debug="ON"
          >
          > </Object>
          >
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          >NES: I used
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          >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
          >> >
          >

Need a load balancer ?

Dear Sir/Madam,I have 2 Sun boxes and 2 cpu each. We are going to deploy the cluster with 2 WL servers on each machine. I want to make sure something before I start.Q1 : Since I will deploy 2 WL servers on each machine. Does it mean one of the WL will become a Admin server and another one will become mamaged server ? when is the DNS list stored ? Does it mean the admin server will take the request and pass it into other macines ? If that is the case, what if the admin server is down, then that would be a single point of failure, right ?Q2 : Do I need a load balancer for clustering ? Does it make any different if I use or not use 3rd party web server in the front of the WL servers ? In what case do i need a load balancer ? Can I user only one web server for serving 2 WL Servers ?thanks,Eddie


Eddie,
          The Weblogic cluster documentation will help to explain many of your
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          > Does it mean one of the WL will become a Admin server and another one will
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          > If that is the case, what if the admin server is down, then that would be
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          No. RTFM. You really should not skip this part of your requisite reading.
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          Cameron Purdy
          Tangosol Inc.
          << Tangosol Server: How Weblogic applications are customized >>
          << Download now from http://www.tangosol.com/download.jsp >>
          "Eddie" <[email protected]> wrote in message
          news:[email protected]...
          > Dear Sir/Madam,I have 2 Sun boxes and 2 cpu each. We are going to deploy
          the cluster with 2 WL servers on each machine. I want to make sure something
          before I start.Q1 : Since I will deploy 2 WL servers on each machine. Does
          it mean one of the WL will become a Admin server and another one will become
          mamaged server ? when is the DNS list stored ? Does it mean the admin server
          will take the request and pass it into other macines ? If that is the case,
          what if the admin server is down, then that would be a single point of
          failure, right ?Q2 : Do I need a load balancer for clustering ? Does it make
          any different if I use or not use 3rd party web server in the front of the
          WL servers ? In what case do i need a load balancer ? Can I user only one
          web server for serving 2 WL Servers ?thanks,Eddie
          [WL60clusterdoc.zip]

Advantages of using a webserver inbetween a load balancer and application servers

I am building out a new weblogic domain.
I am wondering which one of these configuration to go with:
1. Load balancer > weblogic servers
2. Load balancer > web server > weblogic servers
Could someone tell me what are the specific advantages of having web servers inbetween a load balancer and application servers (besides caching static data content and acting as a proxy)?
Thanks in advance
Srini

Other than hosting the static content, nothing much really. We have our load balancer go straight to WL for applications without static content and route to web server if there is static content. Easy enough to do it both ways, best of both worlds.

Load Balancing in Clustered Weblogic 12c

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