Load balancing on Integrated ITS

Hi
How do I setup load balancing on Integrated ITS.
Windows 2003 server.
Thanks

Hello,
You'll need a third party load balancer or you can use the SAP Web Dispatcher. You can find more information on the SAP Web Dispatcher at: http://help.sap.com/saphelp_nw04/helpdata/en/42/5cfd3b0e59774ee10000000a114084/frameset.htm
Edgar

Similar Messages

F5 Load Balancer Radius integration for Authorisation

Hi All
Dose anyone configure cisco ACS for F5 authorisation? Do we need any specific VSA? I am facing issue, authentication is fine but authorisation not functioning.
Regards
Sameer Shah

Hi All
After lot of research, found below link on F5 explaining F5 authorisation using tacacs+. So decided to use tacacs instead of RADIUS
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http://devcentral.f5.com/Default.aspx?tabid=63&articleType=ArticleView&articleId=2316
Regards
Sameer Shah

Load Balancing ITS on ERP 2005 displayed through EP 7.0

We are having trouble setting up our Cisco ACE load balancer for ITS on ERP 2005 displayed through EP 7.0. The help documentation is a little confusing as to whether ITS does its load balancing by itself, or with ERP 2005, you need an external load balancer. Does ITS on ERP 2005 provide load balancing?
If it does not, we need an external load balancer and are trying to figure out how to configure the ACE tool for that, particularly around session persistence. Since we are also doing reverse proxy, we would need to use session cookies to key the sticky round-robin load balancing off of. The documentation is a little vague on what the cookie variable is for ITS sessions. Can anyone point me to detailed instructions on how to do this?

Hi,
despite the SAP Help, you can also check out the following blogs. They explain step-by-step configuration to get a SAP Web Dispatcher running:
How to...Configure SAP Webdispatcher as a reverse proxy
How to...Configure SAP Webdispatcher as a reverse proxy
Setup SAP Web Dispatcher with URL Filter
Setup SAP Web Dispatcher with URL Filter on SuSE Linux 9.0
How to setup webdispatcher to load balance portal in a clustered environment
How to setup webdispatcher to load balance portal in a clustered environment
br,
Tobias

Load balancing OIF

I have two servers running two different OIF instances (http://oif1.domain.com:7777, http://oif2.domain.com:7777)
We have a F5 load balancing with url (https://f5oif.domain.com) balancing the above urls
How do I load balance these oif instances. They run both as idp and sp mode.
I tried changing the server name in each as F5 url but get error in oif restart. I changed the SP and IdP metadata but still the same error.
Is it possible to load balance OIF instances ? What special steps I have to do ? Do I have to reinstall OIF for enabling load balancing.
Can the SSL of F5 work with non SSL OIF instances ?
Thanks for the help.

There is no need to choose a virtual hostname, as it is required for Cold Failover
Cluster in the advanced installation procedure.
3. Choose the transient data store in the advanced installation procedure.
4. Install all Oracle Identity Federation instances pointing to the same transient data
store.
5. In the F5 load balancer administration console, create a pool with all Oracle
Identity Federation instances, and enable the application persistence property for
this pool. Set the persistence type to Active HTTP Cookie, set the method to
insert, and the set expiration to the desired value.
6. Create a virtual server member mapped to the newly created pool.
7. Enable HTTP monitoring on all member nodes in the pool.
8. On all Oracle Identity Federation servers instances, change the ServerName and
Port parameters in the httpd.conf file to the Virtual Server name and port.
9. For all Oracle Identity Federation servers that are both load-balanced and
integrated with OracleAS Single Sign-On, register the load balancer URL (for
example, http://lbr.us.oracle.com:80) to all load-balanced Oracle
Identity Federation servers by running this command from the command prompt:
<OIF_HOME>/sso/bin/ssoreg.bat -oracle_home_path %ORACLE_HOME% -site_name
<Load_Balancer_Host_Name> -config_mod_osso TRUE -mod_osso_url
<Load_Balancer_URL:Port>
10. On all Oracle Identity Federation servers, update the configuration by running this
command from the command prompt:
dcmctl updateconfig
11. Restart the HTTP server from the Oracle Enterprise Manager console on all the
Oracle Identity Federation server instances.
12. In the Oracle Identity Federation administration console, under Server
Configuration - > Server Properties, change the server hostname and port
number to the Virtual Server name and port number of the load balancer.
13. Restart the Oracle Identity Federation instances from the Oracle Enterprise
Manager console.
14. Distribute the new metadata file to the peer providers.
Edited by: user11129635 on May 31, 2009 2:15 PM

Idocscript variable !--$REMOTE_ADDR-- is returning Load balancer IP

Hi ,
idocscript variable  is returning Load balancer IP. Its not returning Client IP. we have X-forwarding enabled at Apache level.
Any insight into this?
thanks,
Edited by: user4884609 on Jan 18, 2012 1:35 PM

According to the documentation, http://docs.oracle.com/cd/E14571_01/doc.1111/e10726/c06_core_ref200.htm ,
Returns the IP address of the remote host making the request.
This variable is specific to the current gateway program request.I'd recommend to contact support (create a Metalink SR), so that your use case is properly triaged.

Load balancing for SAP R3 through ITS for EP .

Dear All
We are using ITS bease SAP R3 iviews in EP ..The landscape is as follows
EP --> ITS --> SAP R3 .
We need to configure a load balancing from EP to R3. Currently the ITS is set to hit one Application server on SAP r3 . How do i configure load balancing in EP for R3 .
Even if we use the Load Balancing Iview, it does not prompt to enter SAP R3 Application servers in the EP Load balancing iview properties.
all it asks is the ITS server and SAP server for connectors.
Regards
Jayesh

Please do the following steps to accomplish load balancing. It includes both ITS definition and system definition.
ITS Definition:
System definition alone will not help. Because you are using ITS to access SAP R/3. ITS uses global.srvc file to access SAP R/3 system.
When you install ITS you have option to choose connection with SAP R/3. You have two options here.
1) Message server with load balancing
2) Application server.
If you choose option 1, you will have load balancing on SAP R/3 using ITS.

ITS load balancing issue

Hi all,
During our testing we are getting a load balancing issue. However, one of the agates in our network is has more CPU power than compared to the other agates in our ITS network. The memory on all the agate servers is the same.
Our current issue we are getting is the one agate that has more cpu power but acquires more sessions as compared to the other two agates. It roughly gets 60 more sessions per agate process as compare to the other Agate servers. Does having more cpu on a Agate affect the load balancing on ITS? We are on ITS patch level 19 with the Hotfix.
Thanks,
Jin Bae

Hello Jin,
yes, at (re)initialize the WGate retrieves the capacity from the AGates.
This is an accumulated number based on CPU performance and the number of CPUs!
The number can be seen in "wgate-status" as the "Capacity" of the AGate.
When running multiprocess Agates the number is retrieved from the MManager and also involves the number of agate-processes.
The WGate dispatches the load in proportion depending on these capacity numbers.
By my knowledge there is no way that these values can be configured (fixed).
Regards,
Fekke

OAM 11g integration with Kerberos on cluster with load-balanced virtualhost

Hello!
I need to make a Kerberos integration with OAM.
I find following notes about OAM 11g: WNA Configuration for HA Clusters [ID 1365888.1] (https://support.oracle.com/epmos/faces/ui/km/SearchDocDisplay.jspx?_afrLoop=223640518878014&type=DOCUMENT&id=1365888.1&displayIndex=1&_afrWindowMode=0&_adf.ctrl-state=14ehvbh4z2_61).
"In an OAM Clustered environment, the OAM Principal for WNA must be the same on all tiers i.e. the load-balanced virtualhost for the OAM cluster.
Therefore each OAM managed server will reference the same keytab file, generated for Principal HTTP/<virtualhost.domain>, and the keytab file will be in the same location on all OAM managed servers.
For example: ${DOMAIN_HOME}/domains/${DOMAIN_NAME}/config/fmwconfig/oam/<keytab filename>.
After copying the keytab file to the same directory on all OAM managed server machines, complete the configuration of the Kerberos authentication module in OAM Administration Console (/oamconsole).
The AdminServer will ensure that the oam-config.xml file on all OAM managed server tiers in the cluster is updated with this configuration."
The question is; When I generate oam.keytab with following command, What is the name of the server that I will must put in the command? Virtualhost (load-balanced), Node1 or Node2?
ktpass -princ HTTP/<servername>@DOMAIN -pass XXXXXXX mapuser DOMAIN\user -out oam.keytab.
Thanks in advance and best regards!
PS: Sorry if my english is not clear.

David,
Your Principal name should be the SSO LB URL.(ie :sso.mycomany.com)
ktpass -princ HTTP/sso.mycomany.com@DOMAIN -pass XXXXXXX mapuser DOMAIN\user -out oam.keytab.
Also make sure sso.mycomany.com has a reverse DNS configured correctly.
you can check using dig command
ping sso.mycomany.com
What ever the ip-address
dig -x <IP-ADDRESS>
Check in the reverse DNS section there should be 1 record.
;; ANSWER SECTION:
1.1.1.1.in-addr.arpa. 3600 IN PTR sso.mycomany.com.
Let me know if you have more questions.
Thanks
Saurabh

Webcenter integration with load balancer

Dear Team,
Any body configured load balancer(Like BIG IP F5) with webcenter,
Please provide some steps or documentation for webcenter high availability,I mean steps to convert webcenter single node to two node for high availability.
Thanks,
Rajendra.

the following links will help you for wecenter high availablity-
http://download.oracle.com/docs/cd/E12839_01/core.1111/e10106/adf.htm#CACCHJBG
http://download.oracle.com/docs/cd/E12839_01/core.1111/e10106/adf.htm#CACGCICI
http://download.oracle.com/docs/cd/E12839_01/core.1111/e10106/adf.htm
for Setting Up Node Manager-
http://download.oracle.com/docs/cd/E17904_01/core.1111/e12037/node_manager.htm#CCHBIFCF
for better configuration weblogic person can help you out.

Cache refresh issue with PI Load Balanced HA setup.

Dear Experts,
Wei have installed a HA Load Balanced PI Production Server with the below specifications. Its a four node cluster. Two nodes for Application Cluster and another two nodes for Database Cluster.
Node1
Physical Hostname : axsappci
Virtual Hostname : axsapp00
Instances         : CI,SCS and ASCS.
Node2
Physical Hostname : axsappdi
Virtual Hostname   : axsapp00
Instances          : Dialog instance installed with physical hostname axsappdi
Node3
Physical Hostname : axsappd1
Virtual Hostname   : axsappdb
Instances : DB Instance.
Node4
Physical Hostname : axsappd2
Virtual Hostname   : axsappdb
Instances : Standby DB Instance (passive).
Web Dispatcher Hostname : h2h
Application Switchover : CI,SCS and ASCS to switchover to Node2 and dialog instance Node2 forcing to go down
Database Switchover : DB Instance switchover to Node2 if Node1 fails.
We have changed all the parameters according to note 951910 -> NW2004s High Availability Usage Type PI
I am facing an issue with the cache Notifications in the Integration Repository and Directory. The cache notifications are not happening properly particularly with the ABAP Cache.
I get the below error in my ID when i try to do the manual cache notification.
Unable to notify integration runtime (ABAP) of data changes
Unable to establish http connection "http://h2h:8002/sap/xi/cache?sap-
client=001"
Kindly assist.
Thanks and Regards
Raghu.

Hi Srikanth,
Thanks for the reply.
I have configured my web disptacher to use default HTTP and HTTPS ports i.e 80 and 443. According to note 951910 i have changed parameters in exchange profile to use these ports.
Regards
Raghu.

Re: Shared SO's and Load Balancing

Thanks, Tom. I understand this issue a lot better now.
Dale
On Wed, 21 Jan 1998 23:28:33 +0000, Tom O'Rourke wrote:
Dale,
You are right in that it many times does not make sense to load balance
services that are multi-threaded.
But, when a TOOL service object is partitioned with a DBSession service
object, the TOOL service acts as if it is single-threaded regardless of if
it is SHARED or not (while the partition is accessing the database). This
means that the entire partition will be blocked (single-threaded) while the
TOOL service object is using the DBSession to access a database.
Forte blocks the partition to protect the integrity of the data being
passed back and forth to the database because the database vendors have yet
to provide a thread safe call interface to the RDBMS. This is changing as
we speak and Forte is in the process of making the appropriate adjustments.
So, this is the case where it makes complete sense to load balance a
service that is not marked as being SHARED and why it can be a tremendous
performance advantage to use Forte load balancing. As we all know, this
architecture (TOOL EVSO partitioned with DBSession UVSO) is one that is
widely used and proven to produce high performing applications.
The point you bring up is a good one and that is often misunderstood. A
load balanced SO will behave as if it is single threaded (or SHARED).
FYI, we have just added a new feature in release 3.F. Performance-based
load balancing. Check it out.
Tom
At 07:38 PM 1/21/98, Dale V. Georg wrote:
On Wed, 21 Jan 1998 17:24:33 -0000, Richard Stobart wrote:
Dale,
If SHARED is true in a Service Object then the Service Object is not
re-entrant (because many clients are sharing its variables and therefore is
not multitasked (Funny logical naming if you ask me)). I got a lot of replies correcting me on what SHARED means! I do know
what SHARED means, I just phrased it backwards in my post. Excuse me
while I smack myself upside the head. :)
All replicates of a
load balanced partition are not re-entrant and thus equivalent to SHARED =
true. The advantage of load balancing is that the replicates can be
distributed over machines and thus the load is balanced. What I fail to understand is this: If you have a non-SHARED SO all by
itself in a partition which is not load-balanced, it will be
re-rentrant and multiple users can call it at the same time. But as
soon as you load-balance it, all of a sudden it behaves as if it were
SHARED. Why? I don't understand the technical limitations that impose
this, nor do I understand the advantage. For example, let's say that I
have 50 concurrent users of the SO I described above. It's in a
non-load-balanced partition, so all 50 users can access it at the same
time without any problem. Now let's say my server is a little
stressed, so I decide I want to load-balance my SO and have two
replicates, one on the original server and one on a second server. But
now that I've load-balanced it, the partitions act as if they're SHARED
and my 50 concurrent users are going to be lining up in queues and
suffering from horrible response times. How is this advantageous?
================================================
Dale V. Georg
Systems Analyst
Indus Consultancy Services
[email protected]
================================================
================================================
Dale V. Georg
Systems Analyst
Indus Consultancy Services
[email protected]
================================================

Thanks, Tom. I understand this issue a lot better now.
Dale
On Wed, 21 Jan 1998 23:28:33 +0000, Tom O'Rourke wrote:
Dale,
You are right in that it many times does not make sense to load balance
services that are multi-threaded.
But, when a TOOL service object is partitioned with a DBSession service
object, the TOOL service acts as if it is single-threaded regardless of if
it is SHARED or not (while the partition is accessing the database). This
means that the entire partition will be blocked (single-threaded) while the
TOOL service object is using the DBSession to access a database.
Forte blocks the partition to protect the integrity of the data being
passed back and forth to the database because the database vendors have yet
to provide a thread safe call interface to the RDBMS. This is changing as
we speak and Forte is in the process of making the appropriate adjustments.
So, this is the case where it makes complete sense to load balance a
service that is not marked as being SHARED and why it can be a tremendous
performance advantage to use Forte load balancing. As we all know, this
architecture (TOOL EVSO partitioned with DBSession UVSO) is one that is
widely used and proven to produce high performing applications.
The point you bring up is a good one and that is often misunderstood. A
load balanced SO will behave as if it is single threaded (or SHARED).
FYI, we have just added a new feature in release 3.F. Performance-based
load balancing. Check it out.
Tom
At 07:38 PM 1/21/98, Dale V. Georg wrote:
On Wed, 21 Jan 1998 17:24:33 -0000, Richard Stobart wrote:
Dale,
If SHARED is true in a Service Object then the Service Object is not
re-entrant (because many clients are sharing its variables and therefore is
not multitasked (Funny logical naming if you ask me)). I got a lot of replies correcting me on what SHARED means! I do know
what SHARED means, I just phrased it backwards in my post. Excuse me
while I smack myself upside the head. :)
All replicates of a
load balanced partition are not re-entrant and thus equivalent to SHARED =
true. The advantage of load balancing is that the replicates can be
distributed over machines and thus the load is balanced. What I fail to understand is this: If you have a non-SHARED SO all by
itself in a partition which is not load-balanced, it will be
re-rentrant and multiple users can call it at the same time. But as
soon as you load-balance it, all of a sudden it behaves as if it were
SHARED. Why? I don't understand the technical limitations that impose
this, nor do I understand the advantage. For example, let's say that I
have 50 concurrent users of the SO I described above. It's in a
non-load-balanced partition, so all 50 users can access it at the same
time without any problem. Now let's say my server is a little
stressed, so I decide I want to load-balance my SO and have two
replicates, one on the original server and one on a second server. But
now that I've load-balanced it, the partitions act as if they're SHARED
and my 50 concurrent users are going to be lining up in queues and
suffering from horrible response times. How is this advantageous?
================================================
Dale V. Georg
Systems Analyst
Indus Consultancy Services
[email protected]
================================================
================================================
Dale V. Georg
Systems Analyst
Indus Consultancy Services
[email protected]
================================================

Load Balancing, Tomcat, and SharePoint

I'm a new BusinessObjects customer and am working on getting all of the hardware in place for a new install. The initial plan is to have two BOE servers, and two tomcat virtual servers, with a hardware based load balancer (F5 BIG-IP Switch: Local Traffic Manager 1600 4GB, possibly) in front of the tomcat servers to handle the load balancing.
But, I'm starting to think that it would be a good idea for us to integrate directly in to our SharePoint portal using the SAP SharePoint Integration option.
So, here's my question. If we do that, then our users will get to their BusinessObjects information via SharePoint. So, SharePoint and IIS will be the web server. Will we still have a need for the Tomcat servers? Will SharePoint point to the load balancer, then to Tomcat, and finally to the BOE server, or will it go right to the BOE server, thus negating the need for the tomcat servers altogether, and also even negating the need for the load balancer? If so, can the BOE app servers themselves still be load balanced?
Hopefully this all makes sense - like I said, we're a new customer, so I don't fully understand all of what the servers are doing. I've spent several days searching the forums & the web & reading documentation and haven't come up with an answer yet, so I'm reaching out to you all & hoping somebody can clear it up for me. Thanks!!

Thank you for your input, Denis, this does help explain things. Also, thanks for pointing me to that Windows Patterns document. I hadn't seen that one - since we're starting out on 4.0, I've only been looking at documents under the 4.0 folders...
It sounds like we may want to utilize this same load balancer to balance the SharePoint traffic as well, while we're at it. Right now our SharePoint server is clustered using Microsoft Clustering, but not load balanced in any way. Or maybe we just post a link from within SharePoint to the regular old BI LaunchPad and call it a day!
So, if I understand correctly, if we utilize SharePoint, any traffic/processing that the Tomcat server would have handled would now be handled by the SharePoint server, which could potentially be significant. The actual processing of the reports, though, will still get handled by the BOE Cluster, which takes care of its own load balancing, so we'll be fine. Really the only thing the hardware load balancer does is allow the presentation layer to be load balanced - the layers beyond that get load balanced automatically via CMS. Is that all somewhat valid? In the patterns doc, there's Application Servers separate from the BOE Servers. We were just going to have two BOE servers and two Web servers. Where do the application servers fall in, and are they load balanced using the hardware piece?
If we were just concerned about High Availability, it seems like maybe we could more easily use Windows Clustering on those Tomcat servers, and avoid the hardware component altogether. Do the Web servers really get hammered that hard that we need them load balanced? It seems like the BOE servers are the ones doing the heavy resource intensive tasks and we get them load balanced without the hardware anyway, so maybe load balancing the web servers is overkill..... I'm sure a lot of this is tough to answer, I'm just trying to get a feel for it. I want us to have our best performance & be somewhat future-proofed, but don't want to buy things that I don't need to! We're probably looking at a small, 10-20 concurrent user setup for starters, and out to say 200 concurrent max once it's fully rolled out...
Thanks again!!

Integrated ITS in a Separate App Server (DI) for Security and LoadBalancing

Hi Experts,
I have a specific requirement for ITS Configuration.
1. Production Server ( CI + DB ) -> Existing
[ ERP6.0 ]
OS : Solaris 10
DB : oracle 10.2.0.2
H/W: PRIMEPOWER650
Unicode Enabled
2. Application Server ( DI ) --> to be made ( and to be used exclusively for Web users)
OS : Windows2003 sv
H/W: RX200 S3
x64
MEM: 8GB
No. 1 is existing Production Server Environment.
The Customer Requirement.
The Customer wants to use the ITS . But he doesn't want the existing Production Server to be disturbed for the same for 2 reasons. [ Security and Load Balancing ]
We are planning to create a Separate Application Server (DI) to work as ITS.
As the Kernel is 700. The ITS is integrated into the Production Server by Default.
We have written to SAP and have asked whether the Production Server ITS can be disabled and the Separate DI's ITS be enabled so that the NEW ( No.2 ) Application Server will be used for ITS activities.
SAP has replied saying the Integrated ITS cannot be disabled at the Production Server. Instead as an alternative we can create a Logon Group (using transaction SMLG) and divert all the Web users to the Separated DI (No.2). We have decided to go according to SAP.
Now I have the following questions :
1. The Operating Systems of the Production Server (No.1) and the Separate AP (No. 2)
are different. ( Are there any complexities involved or must do points to be taken care. )
2. Brief / MUST DO tasks at the Production Server Environment and Must do tasks at the DI Environment.
I hope someone has already done some few installations on the above combination, if so, request to please share me your ideas.
Thanks in anticipation
Best Regards,
Paguras
PS :
my earlier discussion on the same topic on this community.
ITS Specific Requirement

Hi Markus,
Thanks for the Reply.
We have the following 2 plans :
Plan-01.
As you have advised, we will try to disable ITS of CI and enable ITS of DI.
Plan-02.
If Plan-01 could be worked out successfully, well implement as per SAP suggests. Creating a Logon Group and divert all the web users to the DI alone.
To deactivate ITS on CI, you have mentioned to make sure, that the system does not listen on the HTTP port (transaction SMICM) on the Servers
BTW, I have seen a parameter called <b>ITSP/ENABLE</b>. if we deactivate this parameter at CI & DB and then activate the same parameter at DI.
My questions to you :
1. Shall we go for Plan-01 ignoring what SAP OSS has said. ?
2. Disable ITSP/Enable Parameter -> CI & DB
Enable ITSP/Enable Parameter -> DI has to be implemented .
Thanks & best Regards,
Paguras
PS: Sorry for always pounding you with so many questions on the same topic.
SAP Help on ITSP / enable parameter
itsp/enable
You use this parameter to deactivate (0) or activate (1) the integrated ITS. Even if the integrated ITS is activated, it only accesses system resources when it is actually used. Nevertheless, it can make sense to deactivate it to prevent users from accessing the SAP system with SAP GUI for HTML via special application servers (such as batch or update instances). Since the conversion of SAP screens into HTML pages uses additional CPU time, it makes sense to reserve a number of dedicated application servers to be used with SAP GUI for HTML and to use a special logon group to balance the load between them.

Monitoring Load balancing in Tuxedo 9.1 and RAC ?

Hi all,
I wrote this question in the old forum bea [http://forums.bea.com/thread.jspa?threadID=300006084], and now I have more question about monitoring of load balancing in tuxedo with RAC:
How can I monitor the load balancing in Tuxedo with RAC?
How can I check that the load balancing of tuxedo is running correctly?
How can I know that group are using my requests?
We need know if the request use the instance ORARAC1 (groups GRP_A1 and GRP_A2) or
use the instace ORARAC2 (groups GRP_B1 and GRP_B2).
There is some tool (similar txrpt) that displays this information in tuxedo 9.1?
Thanks in advance
P.D.: Excuse my english

Logistics Management vs Supply Chain Management
Chapter 1 Logistics
1.1 Logistics Management vs Supply Chain Management
First of all, we must clarify this big semantic matter: what is logistics? what is Supply Chain ? are these two names equivalent?
We can represent this question by this figure
Is SC part of the logistics? or is it the reverse? or is logistics replaced by SC? or are both the same? or are logistics and SC covering partly the same matter but both continue to exist ?
To answer to that question, we have to consider the definition of each concept. We use the definitions commonly accepted by the CSCMP (Council of Supply Chain Management Professionals). These definitions also are used by the APICS (The Association for Operations Management: the global leader and premier source of the body of knowledge in operations management, including production, inventory, supply chain, materials management, purchasing, and logistics.)
The logistics management is that part of the Supply Chain process, which plans, implements and controls the efficient, effective flow and storage of goods, services and related information from the point of origin to the point of consumption in order to meet customers’ requirements.
The supply chain management is the integration of key business processes, from the end user through original suppliers that provides products, services and information that add value for customers and other stakeholders.
Thus the answer to our first question is clearly
In a Supply Chain, each enterprise is a partner; each partner is fully responsible for a process that transforms inputs into outputs using some resources and following the rules or norms.
The concept of supply chain suggests a series of processes linked together (they form a chain !).
Figure 3
Somebody is the producer of the raw material, somebody transforms it into a product, somebody incorporates the product into an assembly, somebody stores the finish good, somebody sells it, somebody transports it and finally a retailer sells it to a final customer who is the consumer.
Some of these processes are sourcing, others are manufacturing and others are distribution.
If we illustrate the system for a more complex product, we obtain the hereunder schematic.
The pilot of the Supply Chain must instruct each supplier about when and to whom they have to deliver their products. He must instruct supplier "A" to first supply "B" and later the main manufacturer; for another part, he must instruct "B" to first supply the main manufacturer and later the supplier "C", if it is the right way to get the product on time as promised to the customer.
Figure 4
1.2 Flows
As indicated here above, all the partners are linked (they form a chain). These links cover 3 flows:
1. physical product flow (material flow)
The materials flow from suppliers to customers and from customers to suppliers (reverse flow).
The products are packaged (primary package, secondary package, warehousing package, transport package). Each package fills a specific function. (to see chapter 6). Containers, pallets and some packaging are circulating round trip.
The management of the materials flow must deliver products on time, in the proper sequence, exactly where they are needed.
2. information flow
Information is flowing in both directions, is passing each other, is colliding with others …
The information include order, delivery, inventory level, production status, forecasts, quotation …
The information could be considered as the piloting system of the other flows.
The information is flowing between multiple organizations and enterprises, each one having its own managing system, its own value system ….
3. financial flow
They include credit terms, payment schedules, title ownership arrangements …
A major problem concerns the coordination, the synchronization between all these flows. The final objective of the logistics / supply chain is to reduce costs and to improve service levels at the profit of all the partners of the chain, suppliers, manufacturer and customer. Each activity playing a role in making the product and the services conform to customer requirements (cost, delivery terms, quality …) is concerned.
In the past, each enterprise was trying to strangle other enterprises to obtain the major advantage (and to avoid realizing some effort). The bigger was crashing the smaller.
Today, no single enterprise is solely responsible for the competitiveness of its products and services. The benefit obtained by working in network must be shared between all the members of the chain. The sole strategy that performs is the win-win strategy.
The competitiveness suppose to give a better service, a superior service to the final user of the product / service (decreased delivery times, repairing/exchanging defective parts, maintenance, warranties, price, reliability, performance).
Today, we have to consider the total system wide cost; it includes manufacturing, transportation, packaging, warehousing, distribution, rework, repair, administrative costs. Managing the supply chain is not minimizing a single cost between two entities but, rather, on taking a global system approach to get, at the end, the better result that profits to every chain partner.
If one looks at actions in isolation, it is not possible to have a global view and to identify how an isolated action could have a reverse effect. Each decision taken by a partner of the chain has an effect on the upstream and downstream partners. And this effect could be positive or negative. For example, a supplier will reduce its inventory that leads to increase the delivery terms of the downstream partners; for example, a transportation manager will delay a delivery to increase the volume to transport and to reduce the transportation cost.
1.3 Management
It is obvious that designing and operating a supply chain so that total system wide costs are minimized and system wide service levels are improved is very challenging. It is not easy to do that inside a single enterprise, how more if one must consider several enterprises. We could write that the complexity increase exponentially with the number of partners.
with C = complexity of management, k a function depending of the product and n = number of partners.
The criteria to be considered are:
q the complexity of the network mainly if the partners are located over a large geographical area
q the cultural clash between partners
q the difference of capacities of partners: some are SME, others large enterprises, some are assembler, others are machining and some are giving service … Each partner has its own limits, its own capacities and its own resources. It is not thinkable to build a supply chain only with partners having the same constraints.
q the planning process could be different depending of many factors external to the supply chain. It is normal that an enterprise could be partner of several supply chains (example: the ball bearings supplier belongs to several automotive manufacturers supply chains).
q the supply chain is a dynamic system that evolves over time. Everything can change quickly or frequently either on the customers’ side, either on the suppliers’ side, either the market conditions, either the environmental conditions.
1.4 Three levels of management
As every activity, we have to consider the three levels: strategic, tactical and operational.
a) Strategic level.
The strategic level deals with decisions that have a long-lasting effect on the enterprise.
Every department or service has to fit with the strategy of the enterprise.
q The Supply Chain strategy must deal with the procurement of raw materials and all the components used by the enterprise.
Procurement includes packaging, transportation, documentation, warehousing.
q The Supply Chain strategy must deal with the logistics operations inside the manufacturing plant
This includes the flows through the plant, the interoperations packaging, the information, the traceability …
q The Supply Chain strategy must deal with the distribution and usage of the product by the customer.
This includes the selection of the distribution channels and the operations to supply the retailers, the instructions of use and all the operations covered by the warranty and the after sales service.
The long-lasting effect must be considered by product. If the life cycle of the product lasts several years, the strategic level covers more than 2 years; if the life cycle of the product lasts less than one year (i.e. tamagushi ….), the strategic level is not a fundamental step. But reasonably, the strategic level for the majority of the products covers 2 or 3 years.
Some of the basic questions are: 1) make or buy question;
2) location and capacities of production facilities, warehousing, transportation;
3) technologies to be mastered;
4) machines and equipments to be used, rented or …;
5) layout of the production facilities and warehouses;
6) quantities of products to be purchased, launched in production, stored, packed together, transported;
7) the relevant information for the manufacturing;
8) the training of the operators;
It is obvious that all this has a cost and therefore has to be amortized on several years.
b) Tactical level.
The tactical level concerns generally a period of time of one year. It is prepared during the last quarter of the previous year.
The tactical level has to focus on the expected situation at the end of the previous year to establish a series of significant data as 1) quantities to be distributed on each market;
2) exact quantities of raw materials and components to be purchased and when to place orders 3) the planning of manufacturing by quantities, by specifications, …
4) the distribution activities by month, mainly if the products demand is seasonal;
5) to prepare the impact of the promotions on the distribution;
6) to optimize all the logistics functions;
7) to fix the key indicators to allow a performing management;
8) to establish the calendar of each specific step to reach the annual objective;
9) to match demand and supply
The tactical level is the annual budget.
c) Operational level.
The operational level is the real time management. Some activities are planed on one week, others on a day and the updates are permanent. The operational level has to face the failure of a truck, the illness of a warehouseman or a driver, a urgent non planed order, and so on.
The quality of an organization can be measured by the respect of a well constructed plan and by the reactivity face at unforeseen situations. No waste of time, no waste of resource must be the rule for the operational manager.
He must be able: 1) to meet the better lead-times,
2) to respond to any fluctuation of the demand,
3) to deal with all the products (from fast moving goods to industrial component),
4) to face any unexpected situation.
To do that, he must pilot several logistical drivers as forecasting, transportation means, warehousing facilities, inventory, orders management, sourcing possibilities … and these drivers are fed by information. All these drivers can add value or cost at the customer’s eyes.
q Forecasting allows to feed all the other drivers
q Adapted transportation means allow fast loading and unloading and reduced operational costs by comparison with the value of the transported goods
q Warehousing facilities are located at the best operational place to supply their customers (outbound) and to receive goods from suppliers (inbound); they have well adapted infrastructures to store goods. The objective is to get the better responsiveness, to get the better control on each local market, to get the cheapest cost.
q Inventory must be adapted to the demand: enough to face unexpected demand and not too many what carries overstock and therefore additional costs and ageing products.
q Orders management reduces lead time and allows a full control on all the documents issued from these orders as picking ticket, packing list, invoice, …
q Sourcing possibilities allows a better control on the products arrival, access to the docks without waiting times, better management of the purchase orders …
We can summarize all these concepts by 3 curves as follow and the total logistics cost is the sum of these three costs:
Figure 5
We can represent these situations by the following outline representing three concrete situations:
Figure 6 a Figure 6b Figure 6c
Figure 6a represents 4 suppliers delivering to 1 central warehouse and from this warehouse to the customers;
Figure 6b represents 4 suppliers delivering to 2 central warehouses and each warehouse delivers to its customers;
Figure 6c represents 4 suppliers delivering to several warehouses and each one delivers to its own customers.
It is necessary to determine the number of warehouses, their locations, their sizes, the quantity of products to be stored and the location and number of customers to be supplied to get the best service at the lowest cost. The enterprise must compare the costs of opening more warehouses and the benefits to be closer to the customers.
For another part, it is important to take into account the specificity of the warehouses: only to supply a manufacturing facility, only to supply end customers or supplying both manufacturing facility and end customers. The basic functions are the same but they are several important differences:
q to supply a manufacturing facility means many suppliers (for raw materials and purchased components) and a few customers (manufacturing sections).
q to supply end customers means very few suppliers ( final assembly line) and a large number of customers (all the customers for finished products and spare parts)
q other differences concern the quantities, the size, the physical configurations, the variability and predictability of the demand, the unforeseen breakdowns (machines, trucks and trailers …), the capacity of each buffer between each manufacturing or supply process, lead-times acceptable by each downstream customer, size of batches, safety inventory size, risk parameters …
1.5 Supply Chain Information
As here above mentioned, information feeds all the logistics drivers. Therefore, it is important to detail the content of these information. The supply Chain Management manipulates a lot of information that each one affects strongly or weakly the results. Firstly, we have to consider the information that affect directly all the logistics drivers.
Forecast is affected by the economic situation of the market, by the financial situation, by the wealth of the population, by the obstacles to the trade, by the adequacy between the specifications of the product and the needs of the customers … All the data concerning these parameters must be considered as useful information.
Inventory is needed to face the responsiveness to the demand of the market. The Supply Chain Manager must know this requirement to establish correctly the level of inventory for each item as well as the inventory cost.
Transportation information include frequency of each transport vector, capacity of each one, availability, possibility to circulate, cost, particular requirements as national flag or piracy risk ….
Warehousing size and location have important consequences on several managerial decisions
Computerized treatment of all these data allows to simulate the actions and their result, allows a fast and very reactive circulation of the information between all the members of the network, reduces the redundancy of some encoding operations just as the error risk, allows a good traceability of all the decisions and operations, authorizes a real time follow-up, improves the visibility on the various sequences … Information and Communication technologies play a critical role concerning the exchange of information between suppliers, manufacturer, customers, carriers and other services providers. To be performing, every enterprise must master an information system adapted to his needs but also allowing to be networked with all the other members of the Supply chain: it is a very critical competitive advantage to be better than the competition on that aspect. But, everybody understands the major difficulty to interconnect different systems. Information must be cheap, available as soon as needed, without time lag,
1.6 Main actors
As illustrated on the figure 3, each process is requiring resources.
1.6.1 Human resources
The human resources who have an impact on the supply chain are:
q The buyers: they have to reference the suppliers who can work inside a supply chain. They must accept to work as the pilot of the supply chain decides it for the best of all the actors. The buyers must place the purchase orders when it is fixed by the Supply chain organization.
q The designers: they have to design products that it is possible to pack and transport on the best economical way. But they also must design products with the specifications that the suppliers can realize and all the actors of the supply chain can store and transport. Finally, the products must be designed with the objective to be customized at the latest stages of manufacturing.
q The packaging designers: they have to design packaging that can be economically manipulated by each member of the supply chain (size of the racks, trucks…), that correspond to the various quantities (to see §2.2) needed by the actors. It is also important that each packaging can be easily open and closed as frequently as required.
q The manufacturers: they must be flexible to accept small or large batches and evidently the must produce quality on time.
q The sellers: they must work with the precise specifications allowed by the design and with the quantities allowed by the agreement between all the parties.
q The transporters: they must deliver on time and in perfect condition.
q The warehousemen: they must act with the right diligence
q The computer operators: they must deliver the right information at the right time to the right people. Each supply chain member can recuperate the data without risk of mistake or confusion to build the appropriated management system.
1.6.2 Material resources
The material resources must be sufficient, in good conditions, available when needed and well adapted to the products and operations. These conditions are required to be able to link together many process operators. Indeed, if an operator doesn’t master well his process, it is thinkable that he will not be able to respect quality, quantity or delivery date.
This also supposes that the maintenance of all the equipments is well executed.

Weblogic 10.3.6 - Load balancing- sending duplicate requests 5 min

Hello,
         We have configured clustering and load balancing to our integration solution as mentioned at http: //abhinavgupta3.blogspot.in/2012/02/osb-clustering-load-balancer.html
But when ever a requests goes through load balancer and if that requests goes beyond 5 min (300Sec), then load balancer generating new request and that request is being redirected to another node.
As per my blogging I found there is some setting need t
Because of this we are going to ambiguous situation.o configured at load balancer for not falling in to this situation.Its about a property called 'Idempotent'
Please help me on this.
Thanks,
Satyendra

"The datasource is created successfully from the console so there's no problem with the jar file."
Did you also test the data source when you created it?
- when yes then WebLogic can indeed find the derbyclient.jar as the driver org.apache.derby.jdbc.ClientDriver is part of it.
"I specified in the weblogic.xml that the antlr.* classes should be taken from the application. Also tried this option for org.apache.derby.* classes."
Have you only defined a
<prefer-application-packages>
    <package-name>antlr.*</package-name>
    <package-name>org.apache.derby.*</package-name>
</prefer-application-packages>in weblogic.xml or did you also turn on prefer-web-inf-classes?
It is smart to start from scratch and delete all the jar files in all the directories. To make the derbyclient.jar part of the WebLogic classpath you can do the following:
- edit setDomainEnv: When you open setDomainEnv there is an entry like "SET THE CLASSPATH". Just before - if [ "${JAVA_VENDOR}" != "BEA" ] ; then
you can put something like: CLASSPATH=${CLASSPATH}${CLASSPATHSEP}location/derbyclient.jar
If the class must be available on every server in a cluster, you can edit the commEnv file (located in the ${WL_HOME}/common/bin directory)
Search for the entry "set up WebLogic Server's class path". And below the WEBLOGIC_CLASSPATH you can add something like:
WEBLOGIC_CLASSPATH=${WEBLOGIC_CLASSPATH}${CLASSPATHSEP}location/derbyclient.jar
Hope this helps you a little

Load balancing on Integrated ITS

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