ODI - Agents

Agents:

• ODI agent orchestrates the execution of processes created in ODI. 
• At runtime, agents will be used to run Load Plans and Scenarios via an ODI schedule, command line call, web service call, or a third-party scheduler. 
• Agents are accessed via http/https requests, regardless of how they are called into action.
• These agents are multi threaded java programs that support load balancing and can be diatributed across the information system.

There are 3 types of agents are available:

JEE Agent

• Implemented as a deployment in Weblogic Server 12c, 
• the JEE Agent allows you to use the features of WLS, such as clustering for high availability and JDBC connection pooling.

Standalone Agent

The Standalone Agent is a lightweight Java application that is typically installed to run closest to where most of the transformations will occur. In most data warehouse setups, this is on the data warehouse server.

Standalone Colocated Agent

This type of agent is essentially a Standalone Agent that is managed via Weblogic Server. If you want to manage all of your agents via WLS, this is the way to go.

Comparatives of these 3 agents features:

Agents setups steps in ODI:

Step1: Go to the Topology and Physical architecture and right click on agents and add new agent and provide all the details like Name as OracleDIAgent1, Host, port etc.

Step2: Go to Logical Architechture and add add new agents on agents. Here you only need to mention the context and physical agents.