What Are The Cognos Services Are Running

This is an archive related to a previous version of Esri Maps for IBM Cognos. If you need the electric current version go to http://medico.arcgis.com/en/maps-for-cognos/.

IBM Cognos architecture

The following is a high-level overview of the IBM Cognos Business Intelligence architecture. For more detailed data, see the IBM Cognos Business concern Intelligence Compages and Deployment Guide.

IBM Cognos is a spider web-based service-oriented compages (SOA) fabricated up of 3 server tiers:

Web Tier
Application Tier
Data Tier

Inside the IBM Cognos platform, servers are normally grouped together to fulfill certain roles inside a distributed deployment. These server roles define the tier within the architecture that an IBM Cognos BI server uses. The tiers are based on business organization part and are typically separated by network firewalls.

Web Tier: The IBM Cognos BI Gateway

The Web Tier facilitates user connections to IBM Cognos BI applications, and the component that fulfills this role is called the IBM Cognos Gateway. The IBM Cognos Gateway manages all web advice for the IBM Cognos platform. High availability or scalability requirements can be met with multiple redundant gateways existence deployed along with an external HTTP load-balancing router.

Spider web communication in IBM Cognos Business Intelligence is typically through gateways, which reside on 1 or more web server. A gateway is an extension of a spider web server program that transfers information from the spider web server to some other server.

Web advice can also occur directly with an IBM Cognos BI Dispatcher, although this choice is less common than using gateways.

If yous install the gateway component on a different computer from Content Manager or Application Tier components, you must configure the gateway reckoner then that it knows the location of a dispatcher, preferably one on an Awarding Tier components computer. For failover protection, you lot tin configure more than than one dispatcher for a gateway calculator.

Application Tier: IBM Cognos BI servers

The Application Tier contains 1 or more IBM Cognos BI servers. An IBM Cognos BI server runs requests, such as reports, analyses, and queries, that are forwarded past a gateway. An IBM Cognos BI server also renders the Cognos Connexion interface.

The application tier is fabricated up of three master server components:

IBM Cognos Dispatcher
IBM Cognos Report Server
IBM Cognos Content Manager

IBM Cognos Dispatcher

The dispatcher starts all IBM Cognos services configured and enabled on a computer and routes requests. The dispatcher can route requests to a local service, such as the report service, presentation service, chore service, or monitor service. A dispatcher can too route requests to a specific dispatcher to run a given request. Requests can be routed to specific dispatchers based on load-balancing needs, or package or user group requirements.

When y'all configure IBM Cognos BI gateways, y'all tin can list the universal resources identifiers (URIs) of target dispatchers in lodge of virtually to least preferred. If a dispatcher fails, requests are routed to another dispatcher based on the list. When a dispatcher starts, it registers itself with Content Managing director. As a outcome, each dispatcher is aware of the other dispatchers. If a dispatcher fails or is unavailable, requests for that dispatcher are routed to the side by side bachelor dispatcher until the failed dispatcher reregisters itself.

IBM Cognos Report Server

Later IBM Cognos BI is installed and configured, one dispatcher is bachelor on each computer by default. Each dispatcher has a set of associated services. IBM Cognos Dispatcher starts IBM Cognos Report Server processes dynamically as needed to handle the request load.

A complete list of the services available is beyond the telescopic of this certificate. The post-obit services are noted because they have a direct impact on how Esri Maps for IBM Cognos is installed and configured.

Presentation service:

Transforms generic XML responses from some other service into output format, such as HTML or PDF
Provides display, navigation, and assistants capabilities in IBM Cognos Connection

Study service:

Manages interactive requests to run reports and provides output for a user in IBM Cognos Connection or a studio

IBM Cognos Content Manager

IBM Cognos Content Manager is the IBM Cognos Platform service that manages (amongst other things) the storage of the post-obit application information: security settings and configurations, server configuration settings, packages, study specifications, and report output. IBM Cognos Content Director maintains information in a relational database referred to as the content store database.

A minimum of i IBM Cognos Content Manager is required for each IBM Cognos Platform implementation.

Data Tier: Content providers

The IBM Cognos Business organisation Intelligence Data Tier contains the following:

Content Store—A relational database that contains information the IBM Cognos BI product needs to operate, such every bit written report specifications, published models, and the packages that contain them; connection data for data sources; data about the external namespace, and the Cognos namespace itself; and information about scheduling and bursting reports.
Data Sources—The data sources that tin exist accessed through IBM Cognos BI include relational databases, dimensional or OLAP cubes, flat files, and other physical data stores. They also include the connexion data necessary for accessing the data.

Example IBM Cognos deployment

The following illustrates an case IBM Cognos deployment. At that place are three dispatchers: one server running the content manager and two servers acting as the report server office.

Example of an IBM Cognos deployment

See the IBM Cognos Business Intelligence Installation and Configuration Guide for complete information nearly the IBM Cognos installation and initial configuration procedure.

For detailed information most IBM Cognos Platform architecture and server deployment options, refer to the IBM Cognos BI Compages and Deployment Guide.