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
Hope this will help...
Jayesh
Yagna Sys
Similar Messages
-
Dear all,
Newly I installed dialog instance to my CI server,
Now I can configure load balance to my CI server.
Please send configuration doc for MSLG and what
Settings I need to perform in SAPGUI
Regards,
satishHi.
look at following
http://help.sap.com/saphelp_nw04s/helpdata/en/c4/3a644c505211d189550000e829fbbd/frameset.htm
check
26317 Set up for LOGON group for autom. load balancing
118093 Concepts of defining 'limits' in logon load balancing
27044 Login workload Balancing verification test
624955 Poor user distribution in logon load balancing
regards,
kaushal -
Configuring load balancing in agents
Experts,
Can you please guide me how to setup load balancing through agents?
both java ee and stand alone in 11g.
CheersHi,
Have you checked the docs on how to do it :
see section 4.3 here :
http://docs.oracle.com/cd/E21764_01/integrate.1111/e12643/setup_topology.htm#CHDDDABA
On the physical agent properties in Topology you can choose to link the agents together on the load balancing tab.
Edit - slightly nicer write up for you here : http://gerardnico.com/doc/odi/webhelp/en/usermanual/topology/topology/load_balancing.htm -
Load balancing In weblogic 6.1 JMS Cluster
hi
i have implemented distributed queues in weblogic as suggested in the JMS performance
guide.but the problem is that of the 3 queues in cluster the messages always end
up going to the same queue and the remaining 2 remainin queues are empty. i want
to perfomr load balancing but i think this ios available only in weblogic 7.0.can
anyone suggest any alternative workaround ??
I wonder if the JNDINameReplicated setting is taking effect.
Are there any warning or error messages in your logs?
Can you see statistics for all three JMS servers on the console?
Does it work if you use the "./a" syntax?
illusionz70 wrote:
> hi,
> 3 machines are in a cluster.all three machines have their different jms servers
> and queues under them but target teh same connection factory.therefore all three
> servers target 3 different machines which are in a cluster. i have weblogic 6.1
> to which i applied the repective CR(patch) which enables the JNDIREPLICATED parameter.i
> set this parameter to false.as a result i am able to monitor the 3 queues which
> have the same jndi names but under different servers.but the problem is when i
> lookup the queues from client using the machine's ip address(not the cluster ip),
> the results are haywire.... even though i target say a ip of 30 , the msg goes
> to ip 20... i dont know why..do you have any idea.
> NOTE : i dont use the ./a ( where queue is the quename ) syntax in createqueue.
> i look up the queue using the JNDI name.
> thanks
> Tom Barnes <[email protected].bea.com>
> wrote:
>
>>Make sure that your context host and connection
>>factory (CF) host are actually the same as what
>>you're expecting.
>>
>>How, exactly, are your clients:
>> (A) looking up their context
>> (B) looking up their CF
>>
>>What are the targets for the CF?
>>What are the URLs for the servers?
>>What is the URL the clients are using? How is it
>>load-balanced among the servers?
>>Are the servers clustered?
>>
>>Tom
>>
>>illusionz70 wrote:
>>
>>
>>>hi
>>> i have implemented distributed queues in weblogic as suggested in
>>
>>the JMS performance
>>
>>>guide.but the problem is that of the 3 queues in cluster the messages
>>
>>always end
>>
>>>up going to the same queue and the remaining 2 remainin queues are
>>
>>empty. i want
>>
>>>to perfomr load balancing but i think this ios available only in weblogic
>>
>>7.0.can
>>
>>>anyone suggest any alternative workaround ??
>>
>
-
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,
SrikarThanks 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 do i get the current version of web logic server on obiee 11g
Hey
I am pretty new to 11g and Weblogic
How do i get the current version of web logic server on obiee 11g(11.1.1.5), I know that it should be higher than 10.3.5.
ThanksHi,
Obiee11.1.1.5.0/6.0 both version supporting weblogic 10.3.5.0/6.0 both are no issues.
http://blog.whitehorses.nl/2012/02/26/a-few-quick-tips-for-upgrading-ofm-11g-to-patch-set-5/
also refer
http://docs.oracle.com/cd/E23943_01/bi.1111/e16452/bi_plan.htm#BABECJJH
Thanks
Deva -
How do I load balance TFTP between two servers and a client on the same subnet?
Hi,
I have trawled through several documents and tried umpteen different configs, all to no avail. I have a PXE boot client trying to access a boot file via TFTP from a couple of TFTP servers on the same VLAN/subnet. For HA purposes I want to load balance the two TFTP servers.
Config is currently;
=====
probe icmp ICMP_PROBE
description icmp probe for default gateway tracking
interval 5
passdetect interval 15
rserver host server1
description Server1
ip address 10.0.0.1
inservice
rserver host server2
description Server 2
ip address 10.0.0.2
inservice
serverfarm host serverfarm_01
description servers used
probe ICMP_PROBE
rserver server1
inservice
rserver server2
inservice
class-map match-all L4_VIP_TFTP
10 match virtual-address 10.0.0.10 udp eq 69
policy-map type loadbalance first-match L7_TFTP
class class-default
serverfarm serverfarm_01
policy-map multi-match L4_LB_VIP_POLICY
class L4_VIP_TFTP
loadbalance vip inservice
loadbalance policy L7_TFTP
loadbalance vip icmp-reply active
nat dynamic 1 vlan 200
interface vlan 200
ip address 10.0.0.250 255.255.255.0
nat-pool 1 10.0.0.241 10.0.0.243 netmask 255.255.255.255 pat
service-policy input L4_LB_VIP_POLICY
no shutdown
ip route 0.0.0.0 0.0.0.0 10.0.0.254
=====
I have read the doco by Ivan Kovacevic amongst many others but as my clients and servers are on the same subnet, the config doesnt work.
Can anybody point me in the right direction please. The devices are ACE 4710 running A3(2.3).
ThanksTry using the following configuration:
Note: Please make sure to configure also a udp probe to probe udp port 69, in case the application is down.
You need to configure a management policy on the interface when using a UDP probe.
That is because, when port 69 on the server will be unreachable, the server will send an ICMP unreachable.
ACE will consider a udp probe as "failed" only when it sees ICMP unreachable.
Without a management policy-map, the ICMP unreachable message will be dropped.
Also, add an ICMP probe to the rserver because udp probe will not be enough when the physical interface will be down.
That is because UDP is a connection-less protocol. To consider a UDP probe successfull, ACE need to see NO answer from the server in respose to the probe.
The ACE will not see any answer from the server when the interface is down and thus, will consider the probe as "sucessful".
With ICMP probe attached to the rserver, you also test the reachability of the server and not only the UDP port.
Here is the configuration (of course, you can chage the names of the of the objects to the name you are using if you want) :
access-list ALL line 10 extended permit ip any any
probe udp TFTP
port 69
interval 5
passdetect interval 15
probe icmp ICMP_PROBE
interval 5
passdetect interval 15
rserver host TFTP_1
ip address 10.0.0.1
probe TFTP
probe ICMP_PROBE
inservice
rserver host TFTP_2
ip address 10.0.0.2
probe TFTP
probe ICMP_PROBE
inservice
serverfarm host TFTP-SFARM
rserver TFTP_1
inservice
rserver TFTP_2
inservice
sticky ip-netmask 255.255.255.255 address source TFTP-STICKY
timeout 10
replicate sticky
serverfarm TFTP-SFARM
class-map type management match-any MANAGE
2 match protocol icmp any
class-map match-all NAT
2 match virtual-address 0.0.0.0 0.0.0.0 udp any
class-map match-all TFTP
2 match virtual-address 10.0.0.10 udp eq 69
policy-map type management first-match MANAGE
class MANAGE
permit
policy-map type loadbalance first-match ROUTE
class class-default
forward
policy-map type loadbalance first-match TFTP-POL
class class-default
sticky-serverfarm TFTP-STICKY
policy-map multi-match TFTP-MULTI
class TFTP
loadbalance vip inservice
loadbalance policy TFTP-POL
nat dynamic 1 vlan 212
class NAT
loadbalance vip inservice
loadbalance policy ROUTE
nat dynamic 2 vlan 212
interface vlan 212
ip address 10.0.0.250 255.255.255.0
no normalization
access-group input ALL
nat-pool 1 10.0.0.241 10.0.0.243 netmask 255.255.255.0 pat
nat-pool 2 10.0.0.10 10.0.0.10 netmask 255.255.255.0 pat
service-policy input TFTP-MULTI
service-policy input MANAGE
no shutdown
Let me know how it goes.
Good luck! -
Adapter configuration & load balancing
Hi,
I posted questions for my requirements on Adapter forum but did not get any answer.
Hope this forum can help.
We started a POc with Oracle As adapters for EBS. As part of that we are trying following taks,
1) Connect to multiple EBS instances & deploy individual adapter for same on AS
2) Use these two instances for loadbalancing & scalaing
I am not bale to find information about above two in Oracle Adapter documentation.
I could build sample EBs adpater scenario with concurrent programs and use a default APPS adapter deployed on AS server by modifying oc4j-ra.xml. But failed to delpoy multiple instances that can be viwed from Enterprise Manager.
Also how to configure my adapters for better load balancing and sclaling. Is there any doc link that i can read?
Thanks in advance.Hi,
This High Availability Guide will give some hints on the same:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/cefe0399-0701-0010-8d86-b6b31cc5a681
http://help.sap.com/saphelp_nw70/helpdata/en/43/39c7b227b91bcbe10000000a1553f7/content.htm
Hope this helps,
Rgds
Moorthy -
How to properly load balance between diffrent server farms.
Hi experts,
We are using an ACE 4710. We chose for our server farms to load balance using the least_connections predictor. it seems to work fine inside the same server farm but is it working properly between server farms? It doesn't seem because some of my real servers seems to be more loaded than others. Each server farm are using the same real servers.
Any idea about what is the problem or any suggestion regarding the best load balancing predictor we should use using this kind of configuration?
Thank's to all.The ACE uses load-balancing algorithms or predictors to determine how to balance the traffic among the devices configured in the server farms, independent of the device type. For FWLB, we recommend that you use only the hash address source and the hash address destination predictors. Using any other predictor with FWLB may fail and block traffic, especially for applications that have separate control and data channels.
Here is the configuration guide for the Cisco ACE 4700 Series Appliance Server Load-Balancing.
http://www.cisco.com/en/US/docs/app_ntwk_services/data_center_app_services/ace_appliances/vA1_7_/configuration/slb/guide/fwldbal.html -
Issue with Site Configuration / Load Balancing
Were noticing strange behavior with our servers that are configured behind a load balancer. Weve got two servers with different ports and a load balancer:
Server1: https://host1:30003/opensso
Server2: https://host2:30103/opensso
Load Balancer: https://loadbalancer:30003/opensso
When we go to the admin console, we can access Server1 without a problem, but the second time we go the load balancer sends us to Server2, and our browser returns a page not found error. Weve traced the HTTP traffic and discovered that every other time we go to the admin console (the load balancers are configured round robin), Server2 always returns a bogus HTTP found URL. The response it provides is something like https://loadbalancer:*30103*/opensso/UI/Login (just an example).
The issue here is that it is properly directing the end users browser to the load balancer DNS entry. It is not however directing the end users browser to the proper port. It seems to sends its own port value to the browser. Obviously when the browser tries to access this URL the Load Balancer rejects the request because it is not listening on port 30103.
Can Multiple OpenSSO application servers (configured as a site) run from behind a load balancer when they are listening on different ports? If so, why is the application server responding to the user request with its own port, rather than that of the load balancer, yet still providing the DNS hostname entry for the load balancer the whole time.Major updates of Muse are targeted to release roughly every quarter. The 1.0 release was in mid-May. The 2.0 release was in mid-August. A fundamental change to image loading would only appear as part of a major update due to the engineering and testing efforts required.
As provided in your previous thread http://forums.adobe.com/message/4659347#4659347 the only workaround until then is to reduce the number of images in the slideshow. -
FRM-92101: Load Balancing Forms 10g with Web Cache
Hi,
I´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 didn´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:
I´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:
I´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, I´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.
I´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:
I´ve Changed the default session binding from JSESSIONID to "ANY SET COOKIE" for the
site's session binding.
But even after these changes I´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 -
How to configure Adobe Content Server in a web farm
We have a requirement where we would like to configure multiple servers with Adobe Content server and route requests via Network Load Balancer. We need help to configure Adobe Content serves in a web farm. can some one from your team direct us to appropriate documents or provide suggestions to configure Adobe Content server in a web farm.
Request to provide instructions to configure Adobe Content Server in a web farm. I have installed Adobe Content Server in one of the box and configured all three services
1) Fulfillment
2) Packaging
3) Admin
We are successfully able to do packaging and fulfill documents. My goal is to add two more servers to handle load on ACS. I had a doubt on how to create and configure certificate files for other two boxes and add them NLB
Request your help in guiding me to the documents that helps me to complete this configuration.
Thanks,
Ravi -
Load balancing to a WLS 8.1 cluster with BigIP 9.0
We are experiencing a problem load balancing to our 8.1 cluster using f5's 1500 with BigIP 9.02. The cluster is not configured with any failover capability; we are have configured the BigIP with active cookie insertion persistence; all is well untill we take down one of the nodes in the cluster; any session associated with that node via the load balancer is bounced repeatedly between the two remaining nodes; the only solution appears to be to close all browser instances and open a new one. Has anyone experienced this behavior and have some suggestions ?
We are experiencing a problem load balancing to our 8.1 cluster using f5's 1500 with BigIP 9.02. The cluster is not configured with any failover capability; we are have configured the BigIP with active cookie insertion persistence; all is well untill we take down one of the nodes in the cluster; any session associated with that node via the load balancer is bounced repeatedly between the two remaining nodes; the only solution appears to be to close all browser instances and open a new one. Has anyone experienced this behavior and have some suggestions ?
-
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? -
How to configure standard report concurrent program in web forms.
I have developed new custom report using reports6i, and defined a concurrent program registered into AOL and assigned to a request group. I tested the report runs fine from form based applications. But user wants to run this new report from web forms(Incentive Compensation). I have no idea how to create a concurrent program link in the Incentive compensation module web forms.
Is there any document to configure oracle report concurrent program into web forms?
or guyz please send me the steps (screen shots) to add custom report concurrent program to web forms?
Please help guyz...I'm new to web forms......
Thanks in advance
Naveen
[email protected]Naveen,
On some event on the page (like a button submit) you can call a PLSQL API with parameters which can further submit your concurrent Request.
If you want to see the Report output in Apps, it can be done directly. Otherwise if you want to see the value in the Self Service Page itself, then you can extend the oracle.apps.fnd.cp.request.server.RequestSummaryVO for your case.
Thanks
Sumit
Maybe you are looking for
-
Calendar in UWC not working.
I'm trying to setup calendar to start working in UWC. I didn't setup whole SunJavaMessingSystem, just i have to fix stuff after someone else's job, that's why it's even harder in my case. The envirovment is that i have over 5 domains that have to use
-
Whilre creating PO the following is being displayed . Comparison of the field selection strings from the G/L account 510000 and the account assignment category K reveals that there is an incompatible combination of field selections for the field sele
-
I'm trying to print chinese through a printer hooked up to my computer with bonjour but the characters dont show up only english words and numbers are printed any ideas?
-
Import Button for Home Share Missing
iTunes 11.0.4.4 Windows 7 Pro 64 bit SP1 iTunes: How to move your music to a new computer http://support.apple.com/kb/HT4527 "11. Select the content in the Home Share that you want to transfer to your iTunes library on your new computer, or choose Ed
-
Where is spell check on my computer
where is my spell check on my computer? Im new to apple and I cant really get the full effect of it to I learn it please help