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In this wiki page, we will illustrate how to set up SAP Web Dispatcher (WDP) for Fiori applications. Communication scenarios, such as HTTP and SSL Termination are also covered.
Configuring WDP for Fiori Applications
Below diagram is the sample Fiori application Architecture for ECC/Gateway using SAP Web Dispatcher as a proxy/Load balancer solution:
Regarding Web Dispatcher Installation, please refer to the following WIKI page. The following communication scenarios are contemplated:
HTTP communication
Configure sapwebdisp.pfl In this section, SAP Web Dispatcher configuration using HTTP communication is explained. For HTTP communication, update following profile sections as shown below:
# Backend Systems
wdisp/system_0 = SID=, NR=XX, MSHOST=, MSPORT=, SRCSRV=*:*, SRCURL=/sap/opu;/sap/public;/sap/bc, SSL_ENCRYPT=0
wdisp/system_1 = SID=, NR=XX, MSHOST=, MSPORT=, SRCSRV=*:*, SRCURL=/sap/es, SSL_ENCRYPT=0 Psequel macos.
# Used for Multiple systems
wdisp/system_conflict_resolution = 1
# SAP Web Dispatcher Ports
icm/server_port_0 = PROT=HTTP, PORT=
icm/HTTPS/verify_client = 0
Restart Web Dispatcher to make changes effective. It's also mandatory that NO HTTPS port was defined in Backend system, and in SICF transaction, the Security Requirement of the /ushell service in the backend must be ‘Standard'.
Testing Fiori URL using web dispatcher with HTTP must work:
http://:/sap/bc/ui5_ui5/ui2/ushell/shells/abap/FioriLaunchpad.html
HTTPS communication
Configure sapwebdisp.pfl In this section, SAP Web Dispatcher configuration using HTTPS communication is explained. To enable HTTPS for Web Dispatcher, make sure that you have followed instructions from this document (check points 1 to 4 from 'Configuring the SAP Web Dispatcher for SSL When the Connection is Terminated and SSL is Used').
Add following profile parameters in the Web Dispatcher profile:
# SSL parameters
ssl/ssl_lib =
ssl/server_pse =
ssl/client_pse = < Location_of_SSL_client_PSE >
wdisp/ssl_encrypt = 1
wdisp/ssl_auth = 1
wdisp/add_client_protocol_header = 1
wdisp/ping_protocol = https
icm/HTTPS/verify_client = 1
# SAP Web Dispatcher Ports :
icm/server_port_0 = PROT=HTTPS,PORT=
# Backend System
wdisp/system_0 = SID=, NR=XX, MSHOST=, MSPORT=, SRCSRV=*:*, SRCURL=/sap/opu;/sap/public;/sap/bc
wdisp/system_1 = SID=, NR=XX, MSHOST=, MSPORT=, SRCSRV=*:*, SRCURL=/sap/es
# Used for Multiple systems
wdisp/system_conflict_resolution = 1
Restart Web Dispatcher to make changes effective. It's also mandatory that HTTPS port was defined in Backend system, in SICF transaction, the Security Requirement of the /ushell service in the backend should be ‘Standard':
and in 'SICF > Error Pages > Configuration', the Logon Protocol should be ‘Logon via HTTPS':
Testing Fiori URL using web dispatcher with HTTP must work:https://:/sap/bc/ui5_ui5/ui2/ushell/shells/abap/FioriLaunchpad.html
Below diagram is the sample Fiori s4HANA Architecture for ECC/Gateway using SAP Web Dispatcher as a proxy/Load balancer solution:
The previous configuration described for Fiori applications is valid for this case, but in addition you just need to add following web dispatcher parameters:
# Backend Systems
wdisp/system_2=SID=, EXTSRV=, SRCSRV=*:, SRCURL=/sap/hba/;/sap/hana/;/sap/bi/;/sap/viz/;/sap/vi/;/sap/ui5
Restart Web Dispatcher to make changes effective. Testing Fiori URL using web dispatcher with HTTP must work for HTTP and HTTPS:http://:/sap/bc/ui5_ui5/ui2/ushell/shells/abap/FioriLaunchpad.htmlhttps://:/sap/bc/ui5_ui5/ui2/ushell/shells/abap/FioriLaunchpad.html
Fiori Launchpad Logon Procedure
Requests with HTTPS client protocol should be able to Login successfully in this case.The Launchpad requires Logon via HTTPS by default (This is SAP recommendation). These are the possible Logon scenarios contemplated and the behavior expected:
- If no HTTPS port in the ICM of the Backend and Security Requirement of the /ushell service in the backend is ‘Standard', you can Logon via HTTP protocol.
- If HTTPS port in ICM, and no client protocol, Fiori Launchpad switches the host from web dispatcher to backend and the protocol to the one expected (HTTPS in this case).
- If HTTPS port in ICM, and client protocol HTTP, Fiori Launchpad switches the host from web dispatcher to backend and the protocol to the one expected (HTTPS in this case).
- If HTTPS port in ICM, and client protocol HTTPS, should be able to Login successfully.
Related Documents
Related SAP Notes/KBAs
icm/server_port_0 = PROT=HTTP, PORT=
icm/HTTPS/verify_client = 0
Restart Web Dispatcher to make changes effective. It's also mandatory that NO HTTPS port was defined in Backend system, and in SICF transaction, the Security Requirement of the /ushell service in the backend must be ‘Standard'.
Testing Fiori URL using web dispatcher with HTTP must work:
http://:/sap/bc/ui5_ui5/ui2/ushell/shells/abap/FioriLaunchpad.html
HTTPS communication
Configure sapwebdisp.pfl In this section, SAP Web Dispatcher configuration using HTTPS communication is explained. To enable HTTPS for Web Dispatcher, make sure that you have followed instructions from this document (check points 1 to 4 from 'Configuring the SAP Web Dispatcher for SSL When the Connection is Terminated and SSL is Used').
Add following profile parameters in the Web Dispatcher profile:
# SSL parameters
ssl/ssl_lib =
ssl/server_pse =
ssl/client_pse = < Location_of_SSL_client_PSE >
wdisp/ssl_encrypt = 1
wdisp/ssl_auth = 1
wdisp/add_client_protocol_header = 1
wdisp/ping_protocol = https
icm/HTTPS/verify_client = 1
# SAP Web Dispatcher Ports :
icm/server_port_0 = PROT=HTTPS,PORT=
# Backend System
wdisp/system_0 = SID=, NR=XX, MSHOST=, MSPORT=, SRCSRV=*:*, SRCURL=/sap/opu;/sap/public;/sap/bc
wdisp/system_1 = SID=, NR=XX, MSHOST=, MSPORT=, SRCSRV=*:*, SRCURL=/sap/es
# Used for Multiple systems
wdisp/system_conflict_resolution = 1
Restart Web Dispatcher to make changes effective. It's also mandatory that HTTPS port was defined in Backend system, in SICF transaction, the Security Requirement of the /ushell service in the backend should be ‘Standard':
and in 'SICF > Error Pages > Configuration', the Logon Protocol should be ‘Logon via HTTPS':
Testing Fiori URL using web dispatcher with HTTP must work:https://:/sap/bc/ui5_ui5/ui2/ushell/shells/abap/FioriLaunchpad.html
Below diagram is the sample Fiori s4HANA Architecture for ECC/Gateway using SAP Web Dispatcher as a proxy/Load balancer solution:
The previous configuration described for Fiori applications is valid for this case, but in addition you just need to add following web dispatcher parameters:
# Backend Systems
wdisp/system_2=SID=, EXTSRV=, SRCSRV=*:, SRCURL=/sap/hba/;/sap/hana/;/sap/bi/;/sap/viz/;/sap/vi/;/sap/ui5
Restart Web Dispatcher to make changes effective. Testing Fiori URL using web dispatcher with HTTP must work for HTTP and HTTPS:http://:/sap/bc/ui5_ui5/ui2/ushell/shells/abap/FioriLaunchpad.htmlhttps://:/sap/bc/ui5_ui5/ui2/ushell/shells/abap/FioriLaunchpad.html
Fiori Launchpad Logon Procedure
Requests with HTTPS client protocol should be able to Login successfully in this case.The Launchpad requires Logon via HTTPS by default (This is SAP recommendation). These are the possible Logon scenarios contemplated and the behavior expected:
- If no HTTPS port in the ICM of the Backend and Security Requirement of the /ushell service in the backend is ‘Standard', you can Logon via HTTP protocol.
- If HTTPS port in ICM, and no client protocol, Fiori Launchpad switches the host from web dispatcher to backend and the protocol to the one expected (HTTPS in this case).
- If HTTPS port in ICM, and client protocol HTTP, Fiori Launchpad switches the host from web dispatcher to backend and the protocol to the one expected (HTTPS in this case).
- If HTTPS port in ICM, and client protocol HTTPS, should be able to Login successfully.
Related Documents
Related SAP Notes/KBAs
The term 'software multitenancy' refers to a software architecture in which a single instance of software runs on a server and serves multiple tenants. Systems designed in such manner are often called shared (in contrast to dedicated or isolated). A tenant is a group of users who share a common access with specific privileges to the software instance. With a multitenant architecture, a software application is designed to provide every tenant a dedicated share of the instance - including its data, configuration, user management, tenant individual functionality and non-functional properties. Multitenancy contrasts with multi-instance architectures, where separate software instances operate on behalf of different tenants.[1]
Some commentators regard multitenancy as an important feature of cloud computing.[2][3]
Adoption[edit]
History of multitenant applications[edit]
Multitenant applications have evolved from—and combine some characteristics of—three types of services:
- Timesharing: From the 1960s companies rented space and processing power on mainframe computers (time-sharing) to reduce computing expenses. Often they also reused existing applications, with simply a separate entry field on the logon screen to specify a customer-account ID. On the basis of this ID, the mainframe's accountants could charge the individual customers for CPU, memory and disk/tape usage actually incurred.
- Hosted applications: From the 1990s traditional application service providers (ASPs) hosted (then-existing) applications on behalf of their customers. Depending on the limitation of the underlying application, ASPs were forced to host applications on separate machines (if multiple instances of the applications could not be executed in the same physical machine) or as separate processes. Multitenant applications represent a more mature architecture[4] which enables a similar service with lower operational cost.
- Web applications: Popular consumer-oriented web applications (such as Hotmail) developed with a single application instance serving all customers. Multitenant applications represent a natural evolution from this model, offering additional customization to groups of users within (say) the same client organization.
Differentiation from virtualization[edit]
In a multitenancy environment, multiple customers share the same application, running on the same operating system, on the same hardware, with the same).
Quality of service[edit]
Multitenant applications are expected to provide adequate isolation of security, robustness and performance[10] between multiple tenants which is provided by the layers below the application in case of multi-instance applications.
Virtualization[edit]
The costs of redesigning applications for multitenancy can be significant, especially for software vendors who continue to offer an on-premises single tenant version of their product. They end up being forced to support two distinct products with all the resulting costs.
An increasingly viable alternative route to multitenancy that eliminates the need for significant architectural change is to use virtualization technology to host multiple isolated instances of an application on one or more servers. Indeed, when applications are repackaged as virtual appliances the same appliance image can be deployed in ISV hosted, on-premises or trusted-third party locations and even migrated from one deployment site to another over time.
See also[edit]
References[edit]
- ^Krebs, Rouven (2012). 'Architectural Concerns in Multi-tenant SaaS Applications'(PDF). Proceedings of the 2nd International Conference on Cloud Computing and Services Science (CLOSER 2012). Conference on Cloud Computing and Services Science. SciTePress. Archived from the original(PDF) on 21 February 2015. Retrieved 21 February 2015.
- ^Wainewright, Phil (30 October 2010). 'Defining the true meaning of cloud'. ZDNet. CBS Interactive. Retrieved 17 March 2016.
Multi-tenancy. Sharing a single, pooled, operational instance of the entire top-to-bottom infrastructure is more than simply a vendor convenience; it's the only way to really achieve cloud scale.
- ^Wilder, Bill (2012). Cloud Architecture Patterns: Using Microsoft amit. O'Reilly Media, Inc. p. 78. ISBN9781449357993.
In the cloud, multitenant services are standard: data services, DNS services, hardware for virtual machines, load balancers, identity management, and so forth.
- ^What Is The SaaS Architecture Maturity Model? Forbes 20 November 2019
- ^[1] The silly debate over multitenancy
- ^Software as a service: The next big thing ComputerWorld 23 March 2006
- ^'Web-to-Print Technology, Recuce Costs, Increase Sales, Integration with Salesforce and Metrix'. Presscentric.com. Retrieved 20 January 2014.
- ^'Building SaaS App with Codeigniter MVC'. Computer Technology News Blog. Retrieved 5 May 2016.
- ^Aulbach, S (2011). 'Extensibility and data sharing in evolving multi-tenant databases'. 2011 IEEE 27th International Conference on Data Engineering: 99–110. doi:10.1109/ICDE.2011.5767872. ISBN978-1-4244-8959-6.
- ^Zeng, Jiaan (2014). Multi-Tenant Fair Share in NoSQL Data Stores. 2014 IEEE International Conference on Cluster Computing (CLUSTER). IEEE. doi:10.1109/CLUSTER.2014.6968761.
Visual Designer 4 4 – A Multi Purpose Design Applications
