Load balancing two or more Web Provider instaces

Is it possible to balance the load between
two or more Web Provider instaces?
I think that HTTPSession exists between
Parallel Page Engine (PPE) and
the Web Provider instance.
Is it correct?
If so, how can I achive load balancing of
Web Providers?

Ok, we tested successfully in our environment and here are the details:
Scenario:
1) One Management Server and two Publishing Servers
2) Publishing Servers are load balanced in F5 (VIP Address)
3) Publishing Servers use Custom App pool identity (Application Pools-->AppVPublishing)
4) App-V 5 Clients use the VIP address in the registry for Publishing Server name and URL
Steps on SQL Side:
1) Obtain the Object SID of the Custom App Pool Identity (ADSI Edit)
2) Login to SQL Server as Admin and launch SQL Mgmt Studio
3) Select App-V 5 DB and expand tables and select 'dbo.PublishingServers'
4) Right click the above table-->edit top 200 Rows'
5) Replace 'Sid' with the one obtained in Step 1
6) File-->Save All
App-V Mgmt Console and Clients
1) Add new packages
2) From any App-V client-->Sync Publishing Server
3) From any browser-->http://<VIP address>:889
4) Make sure all changes on Mgmt Console are reflecting on the Clients
Thanks to Greg who put us in right direction even though scenario is bit different. Also thanks to Chuck Timon from MS App-V team for testing with me.
Now going back to see if we can test this using DSR method on F5 which we tested successfully with App-V 4.6 SP1 earlier. If anyone tested DSR (F5) in App-V 5, please let me know.
Thanks
Raj Yarlagadda
I have - 2 publishing servers listed under this "edit top 200 rows" you want to modify the SID of the publishing
servers computer accounts to the Custom App Pool Identity's SID ? you can't have the same SID
listed for both?

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Is there auto load balance between 2 active webi services?

Hi ,
I have not seen any kind documentation from SAP whether BOBJ can auto load balance requests in round robin fashion between 2 or more webi services.
The only theory or belief that i see & hear is that upon reaching the max connection threshold of one webi service, bobj will start diverting the next requests to second webi service.
So now i am looking for some kind of clarification on whether auto load balance happens between multiple webi services in round robin fashion or not.
Please share if any one has idea about this.
Thanks,
Srikar

Thanks to everyone who tried to respond to my question.
But i just got below response from SAP:
=====================================================
I would like to inform you that CMS distributes the load (jobs) to
servers according to the server availability (maximum jobs allocated
to individual server). This is a generally how load is balanced
between CMS and various job servers and processing servers.
=====================================================
Now i am more confused. I personally did some little testing by creating 2 webi services and tried to view multiple webi reports. What i observed is it does pick up different webi services only while at the start of report viewing. But once it picks up perticualr webi service, that same user session is sticking to previously picked up webi service and always goes to the same process for processing.
But now SAP response is bit more confusing.
Thanks,
Srikar

How to configure Load Balancer in front of Web Logic Cluster

hi all,
I installed 2 weblogic servers in cluster and now i want to deploy Hardware Load balancer in front of them, i want to know do i require any configuration on servers or i just deploy hardware Load balancer in front clustered servers with round robin technique.
Regards,
imran

I think there are two important configuration when you use hardware load balancer in front of WebLogic cluster.
1) Passive Cookie Persistance
You need to configure hardware load balancer so that it can identify Weblogic session cookie for routing request primary server holding HTTP sesstion.
2) External DNS
If there is firewall between hardware load balancer and weblogic cluster and NAT (Network translation ) is used, then you need to configure "External DNS" for each weblogic server in cluster. You need to specify the hostname used by load balancer in "external DNS".
More details about this are available at.
http://edocs.bea.com/wls/docs92/cluster/load_balancing.html#wp1026940
http://e-docs.bea.com/wls/docs92/cluster/planning.html#wp1088950
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Error while load balancing two servers

i have two Solaris servers running 9iAS R2 OC4j.
current patch level is 9.0.2.3
i'm trying to load balance the instances according
to the instructions in this document:
Oracle9i Application Server: mod_oc4j Technical Overview
all i should need to do is run the command:
dcmctl addOPMNLink <IP>:<PORT>
but when i do this i get this error:
ADMN-906026
i could not find any info on this error with searches of:
Google, Google Groups, Oracle MetaLink, Oracle OTN.
ideas? suggestions? anything?
thanks,
.rich

i just tried running a "dcmctl getError", and got this:
ADMN-906026
This Oracle9iAS instance is currently using a database repository to store configuration information. The OPMN link functionality is not supported when a database repository is being used. An Oracle9iAS cluster should be created to associate Oracle9iAS instances when using a repository.
the two OC4J instances in question are associated with an Infrastructure instance on their respective servers. do i need to de-couple the OC4J instances? or create a "cluster of one" instance?
.rich

FRM-92101: Load Balancing Forms 10g with Web Cache

Hi,
IÂ´m having some problems with Oracle Forms and Webcache 10g and I was wondering if you
could help.
Machines: (Pentium IV 2.6 GHz; 2GB RAM; 80GB HD)
A. Red Hat Linux AS 2.1
Oracle AS 10g - Infrastructure Installation
B. Windows 2000 Server - Service Pack 4
Oracle AS 10g - BI and Forms Installation (Using Infrastructure on machine A)
C. Windows 2000 Server - Service Pack 4
Oracle AS 10g - BI and Forms Installation (Using Infrastructure on machine A)
I didnÂ´t apply any Patchsets of Oracle AS 10g. My current version is 9.0.4.0 .
Goal:
Use Oracle Webcache 10g on machine B for Load Balancing an Oracle Forms Application
on machines B and C.
Facts:
The Oracle AS 10g installation on the 3 machines was made without problems.
The Forms Applications are running without problems on both Forms servers in machine B and C.
Symptoms:
IÂ´m getting the following error when I try to acces the forms application through Webcache:
FRM-92101: There was a failure in the forms server during startup.
This could happen due to invalid configuration.
Please look in the web-server log file for details.
But, this error happens ONLY when BOTH OC4J_BI_Forms instances (machines B and C) are
running.
When just one of the OC4J_BI_Forms is running everything works fine.
Webcache Configuration:
IÂ´ve followed Metalink note 207668.1: Configuring Web Cache as a Load Balancer for Application Servers
step by step to make the configuration of the following components:
1. Configuration of the origin servers
2. Configuration of Site definitions
3. Configuration of Site to server mapping
After that, IÂ´ve follwed the Metalink note 229900.1: Integrating and using Web Cache with Forms 9i for Load Balancing
step by step to make the configuration of the following components:
4. Session Binding
Then I try to test the Load Balancing and I got the error FRM-92101 when both OC4J_BI_Forms
instance were running.
IÂ´ve searched Metalink and found note 268830.1: Webcache Won't Load Balance 2 Forms Instances.
Following the note instructions I did the following changes:
Added these lines at the end of HTTPD.conf (machine B):
CookieTracking On
CookieName myformscookie1
Added these lines at the end of HTTPD.conf (machine C):
CookieTracking On
CookieName myformscookie2
In Webcache configuration:
IÂ´ve Changed the default session binding from JSESSIONID to "ANY SET COOKIE" for the
site's session binding.
But even after these changes IÂ´m getting FRM-92101 error on the same conditions.
How can I solve this problem ?
Thank you in advance.
Marcus Santos.
([email protected])

Just ran into this problem last Tuesday, Nov.30 and applied the changes today.
My configuration is similar to yours: 9.0.4 web cache on machine A, 9.0.4 10gAS forms and reports standalone on machine B and C (not a cluster, no infra).
I appended the Cookie lines you mentioned in httpd.conf located in $ORACLE_HOME/Apache/Apache/conf in both machines B and C.
One important thing you may have missed. After changing httpd.conf in each 9iAS instance, you need to make the change known to dcmctl so issue:
dcmctl updateConfig -ct ohs
Then do the following for each 9iAS instance and it should be ready for webcache:
dcmctl stop
dcmctl start
Setup Any-set-Cookie in webcache instead of JSESSIONID and the whole thing should now work. You can run a form through machine A which will load balance to either machine B or C (which can both be up). Then, try shutting down 9iAS on machine B or C and run a form again. They now all work.
HTH,
Raffy

Load Balancing Two Servers

i have two Solaris servers running 9iAS R2 OC4j.
current patch level is 9.0.2.3
i'm trying to load balance the instances according
to the instructions in this document:
Oracle9i Application Server: mod_oc4j Technical Overview
all i should need to do is run the command:
dcmctl addOPMNLink <IP>:<PORT>
but when i do this i get this error:
ADMN-906026
i could not find any info on this error with searches of:
Google, Google Groups, Oracle MetaLink, Oracle OTN.
ideas? suggestions? anything?
thanks,
.rich

Rich -- if you have installed the Oracle9iAS instances and associated them with the infrastructure, then you don't need to perform the manual clustering operations which are contained in the doc you reference.
By associating with the infrastructure (as the error message indicates you have done), the components should all be associated with one another and you'll be working in what we call a managed cluster mode.
If you do have the instances associated with the infrastructure, then what you need to do is use the management console (or dcmctl) to create a cluster and then add the two instances to the cluster. This will then mean that the same applications get deployed to the two instances, and will add an Oc4jMount point to OHS that will allow the incoming requests to be dispatched to the two backend instances.
There should be a guide on OTN (HA Guide, Concepts Guide) which explains the concepts behind these terms if you need.
Here's the dcmctl commands to create a cluster then add the instances to the cluster (this is from my 904 instance, I don't have a 902 instance installed)
[oracle@peterman ~]$ dcmctl -help createcluster
createCluster
Creates a managed Oracle Application Server cluster.
Note
Oracle recommends that Oracle Application Server Clusters using a file based repository contain four (4) or less than four instances.
Type
Configuration Management
Syntax
createCluster -cl cluster_name
Description
A managed cluster is created.
Notes for using createCluster:
You must issue this command in the Oracle home of an instance that
belongs to a farm (that is, is associated with a metadata repository).
The cluster will be created in that farm.
The cluster has no members when created. You can add members using
joinCluster.
You can create an unlimited number of clusters.
Example
dcmctl createCluster -cl cluster1
[oracle@peterman ~]$ dcmctl -help joincluster
joinCluster
Adds an Oracle Application Server instance to the named managed cluster.
Notes for using Oracle Application Server clusters:
Oracle Application Server supports heterogeneous instances as part of the same farm. For example, an instance running on Solaris Operating System, an instance running on a Linux system, and an instance running on an HP-UX system can reside in the same farm.
Oracle Application Server instances that you want to be part of a cluster must be installed on identical operating systems
Oracle recommends that Oracle Application Server Clusters using a file based repository contain four (4) or less than four instances.
If you are using Oracle Enterprise Manager Application Server Control, then, after issuing the dcmctl joinCluster command, you must stop and then start Oracle Enterprise Manager Application Server Control using the commands:
%emctl stop iasconsole
%emctl start iasconsole
Type
Configuration Management
Syntax
joinCluster -cl cluster_name [-i instance_name]
Description
Adds an application server instance to the managed Oracle Application Server cluster specified with the -cl option. By default, this command uses the local instance. You can specify a different instance with the -i option. The instance must be a member of the same farm as the
cluster. There is no limit to the number of instances you can add to a cluster. An instance is stopped after being added to a cluster, so you must manually start it.
Example
To add the local application server instance to cluster1 and restart
it:
dcmctl joinCluster -cl cluster1
dcmctl start
To add instance1 to cluster1 and restart it:
dcmctl joinCluster -cl cluster1 -i instance1
dcmctl start -i instance1
cheers
-steve-

How to load balance two link (resilient link)

How to load balance (if can) or failover two Fiber channel like as below?
interface GigabitEthernet0/1
switchport mode trunk
channel-group 1 mode active
channel-protocol lacp
interface GigabitEthernet0/2
switchport mode trunk
channel-group 1 mode active
channel-protocol lacp

Hi
You can use this "port-channel load-balance src-dst-ip", this will do a XOR on source & destination IP addresses and choose the interface G0/1 if the first bit of the result is 0 or the interface G0/2 if the first bit of the result is 1.
But you can check the path used with that command: "sh etherchannel 1 port-channel"
You can load balance with the mac-addresses too (it is the default mode I think)
http://www.cisco.com/warp/public/473/4.html
Rate if it helps.
MB

2950 load balancing two Windows 2003 servers

We just purchased two Windows 2003 servers that connect directly to a 2950. They have setup network load balancing on the servers. With this setup both of the servers have the same MAC address cloned to their NICS. This is obviously causing a problem with the ARP table on the 2950. I opened a TAC case, and they said it was a Microsoft problem. The vendor that installed the servers says it the switch. Has anybody ever done this?
Thanks

Hello,
I think you would speak about "MAC address table" and not "ARP table" for your 2950 switch. It's typically a trouble known by Microsoft and describe here :
http://support.microsoft.com/default.aspx?scid=kb;en-us;193602
Regards
Yves

Load Balancing Two Different Waas Models

Is it possible to deploy two waas devices having different models? Specifically WAVE-694-K9 and
WAVE-7541-K9? Thanks

Hi,
I guess you questions is about having different WAAS models part of the same WCCP farm.
If that is the case, it shouldn't be an issue at all.
The only problem I would see with this is that if you have even load balancing, the less powerful device will be overloaded while there is still capacity on the other device
If you run into this, you might try to play with the WCCP mask to achieve uneven load balancing based on the devices processing powers.
Regards,
Nicolas

Using CSM to load-balance two sites

Hi there,
I currently use CSS11500's at two of my sites and I'm able to use source-groups to achieve site load-balancing behind a single VIP. So basically I have a VIP that has servers in both the local site and remote site. Is something like this possible with the CSM? I suppose there's the nat server or nat client commands, but I'd like to be able to maintain original client IP address if possible, or at least maintain the original client IP for connections that stay local to the site.
Thanks,
Brandon

Hello Brandon-
It is not directly possible to pick and choose what servers are natted on the CSM like the CSS and ACE can do.
In the CSM, you configure nat under the serverfarm specifically.
Ex.
serverfarm Client_Nat_Example
nat server
nat client REMOTENAT
real 10.10.10.1
inservice
natpool REMOTENAT 172.16.35.5 172.16.35.5 netmask 255.255.255.0
If you were to devide up the traffic prior to hitting a serverfarm (maybe use a policy that matches specific subnets for your clients), then you could nat to only certain servers.
Ex.
access-list 2 permit 5.5.0.0 0.0.255.255
serverfarm Client-Nat-Example
nat server
nat client REMOTENAT
real 10.10.10.1
inservice
serverfarm No_Nat
nat server
no nat client
real 20.20.20.1
inservice
natpool REMOTENAT 172.16.35.5 172.16.35.5 netmask 255.255.255.0
policy client_remote
serverfarm Client_Nat_Example
client-group 2
vserver HTTP
virtual 172.16.35.7 tcp www
slb-policy client_remote
serverfarm No_Nat
persistent rebalance
inservice
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Network Load Balancing not failing over properly

I have 2 MS 2012 servers setup in a NLB unicast configuration, with 2 NICs each on the same subnet. When I take down the second server (and only the second server) the FQDN goes offline. Below are the ipconfigs for each server. Any help
would be greatly appreciated!
Ethernet adapter Data NIC 192.168.220.172:
   Connection-specific DNS Suffix . :
   Description . . . . . . . . . . . : Intel(R) I350 Gigabit Network
#4
   Physical Address. . . . . . . . . : 6C-3B-E5-B2-48-60
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.220.172(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.220.1
   DNS Servers . . . . . . . . . . . : 192.168.220.100
                                       192.168.200.10
   NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Cluster NIC:
   Connection-specific DNS Suffix . :
   Description . . . . . . . . . . . : Broadcom BCM57810 NetXtreme II
DIS VBD Client) #67
   Physical Address. . . . . . . . . : 02-BF-C0-A8-DC-AA
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.220.171(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   IPv4 Address. . . . . . . . . . . : 192.168.220.170(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.220.1
   DNS Servers . . . . . . . . . . . : 192.168.220.100
                                       192.168.200.10
   NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Data NIC 192.168.220.174:
   Connection-specific DNS Suffix . :
   Description . . . . . . . . . . . : HP FlexFabric 10Gb 2-port 533FLR-
r #54
   Physical Address. . . . . . . . . : A0-D3-C1-F6-96-08
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.220.174(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.220.1
   DNS Servers . . . . . . . . . . . : 192.168.220.100
                                       192.168.200.10
   NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Cluster NIC:
   Connection-specific DNS Suffix . :
   Description . . . . . . . . . . . : HP NC523SFP 10Gb 2-port Server Ad
   Physical Address. . . . . . . . . : 02-BF-C0-A8-DC-AA
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.220.173(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   IPv4 Address. . . . . . . . . . . : 192.168.220.170(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.220.1
   DNS Servers . . . . . . . . . . . : 192.168.220.100
                                       192.168.200.10
   NetBIOS over Tcpip. . . . . . . . : Enabled

Hi MS DEF,
A second network adapter is required to provide peer-to-peer communication between cluster hosts. Please isolate your heartbeat network. With unicast when cluster is connected
to a switch, incoming packets are sent to all the ports on the switch, which can cause switch flooding, please confirm you have setup your switch correct, you can refer the following Cisco Switch related unicast configuration.
The Cisco switch unicast related information:
How to configure Microsoft Network Load Balancing on two switches
https://supportforums.cisco.com/discussion/11918276/how-configure-microsoft-network-load-balancing-two-switches
More information:
Selecting the Unicast or Multicast Method of Distributing Incoming Requests
http://technet.microsoft.com/en-us/library/cc782694(v=ws.10).aspx
An Optimal Network Load Balancing (NLB) Configuration
http://blogs.technet.com/b/clint_huffman/archive/2007/10/08/an-optimal-network-load-balancing-nlb-configuration.aspx
Selecting the Unicast or Multicast Method of Distributing Incoming Requests
http://technet.microsoft.com/en-us/library/cc782694(v=ws.10).aspx
I’m glad to be of help to you!
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are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.

Web cache load balancing web forms - Urgent

Hi,
I have two servers(server 1 and server 2) with BI(forms and reports) installation. Infrastructure is running on another unix server( server 3).
I can access forms application on server A and server B using URL :
http://server1.gnb.ca:7778/forms90/f90servlet?config=test
http://server2.gnb.ca:7778/forms90/f90servlet?config=test
Web cache is installed on both server 1 and server 2.
I want to load balance forms applications using web cache.I looked in metalink and i din't find a detailed document to do this.
specially i am not clear on What parameters / how to setup
1) site information for application
2) origin server
3) site to server mapping
I am following doc # 229900.1 from metalink. If someone can give steps to do this is appreciated.
Thanks

Hi, I can't exactly answer this as am not aware of Forms. But, as such, Web Cache does a good load balancing work provided you configure it well. Probably, you should try posting this in Forms forum too.
Regards,
Priyanka GES

Load balancing solution for 2-3 web servers

i am looking for a solution for load balancing between 2-3 servers in the same datacenter. i saw the ACE 4710 but that seems expensive compared to the rest of the the cisco gear in that datacenter. anybody knows what would be an entry level load balancing solution (2-3 web servers)? thanks in advance.

the Ace appliance is the new generation and if you take the lowest license 1/2 Gig you should pay a lower price.
You can still buy the old generation.
This would be the CSS11501.
If you need SSL offload this comes by default with ACE but no the CSS.
CSS11501-K has the SSL offload feature.
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Gilles.

Server Load-balancing Across Two Data centers on Layer 3

Hi,
I have a customer who would like to load balance two Microsoft Exchange 2010 CAS Servers which are residing across two data centers.
Which is the best solution for this? Cisco ACE or Cisco ACE GSS or both?

I would go with source natting the clients ip addresses, so that return traffic from the servers is routed correctly.
It saves you the trouble with maintaining PBR as well.
Source NAT can be done on the ACE, by applying the configuration to either the load balancing policy, or adding the configuration to the class-map entries in the multi-match policy.
Cheers,
Søren
Sent from Cisco Technical Support iPad App

Two isp load balancing on ACE(load balancer)

hi
I don't know much about load balancer(ACE).
Is this is possible to load balance two isp's on load balancer (ACE). If so, how i can do so , any configuration example, or cisco document.

Wrong forum, post in "Datacenter". You can move your posting with the Actions panel on the right.

Load balancing two or more Web Provider instaces

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