Informatica Architecture

Informatica Architecture

Informatica Architecture is divided into two components: 1. Server Components -->Server Components in Informatica are: a. Repository Server b. Informatica Server 2. Client Components --> Client Components in Informatica are: a. Workflow Designer (D) b. Workflow Manager (W) c. Workflow Monitor (M) d. Repository Manager (R) Here is the Architecture Flow Diagram of Informatica:    Now, let`s talk about the flow in detail: A developer writes a program in the Designer.  The program is a GUI-Based program and is called Mapping.  Once the mapping is created, the mapping needs to be saved  into the repository. Once the program(mapping) is saved, the next step is to execute the program.  To execute the program WorkFlow Manager tool is required. We cannot execute the mapping directly, we need to create a session task for the mapping.  Once the session task is created it needs to be saved into the repository. Also, we cannot execute the session task directly. For execution we need to create a Workflow using the Workflow Manager tool.  Once created we need to save the workflow to the repository. Workflow will be executed from the workflow manager. During the execution of the workflow, we can monitor the activities using the WorkFlow Monitor. Other  important components of the informatica power center are listed below: Domain: Domain is the primary unit for management and administration of services in Powercenter. The components of domain are one or more nodes, service manager an application services. Node: Node is logical representation of machine in a domain.  A domain can have multiple nodes. Master gateway node is the one that hosts the domain.  We can configure nodes to run application services like integration service  or repository service.  All requests from other nodes go through the master gateway node. Service Manager: Service manager is for supporting the domain and the application services. The Service Manager runs on each node in the domain. The Service Manager starts and runs the application services on a machine. Application services: Group of services which represents the informatica server based functionality. Application services include powercenter repository service, integration service, Data integration service, Metadata manage service etc. Powercenter Repository: The metadata is store in a relational database. The tables contain the instructions to extract, transform and load data. Powercenter Repository service: Accepts requests from the client to create and modify the metadata in the repository. It also accepts requests from the integration service for metadata to run workflows. Powercenter Integration Service: The integration service extracts data from the source, transforms the data as per the instructions coded in the workflow and loads the data into the targets. Informatica Administrator: Web application used to administer the domain and powercenter security. Metadata Manager Service: Runs the metadata manager web application. We can analyze the metadata from various metadata repositories.