Patent attributes
Systems and methods are described for graphical user interfaces that enable users to graphically design nodes and interconnections of pipelines for preprocessing data later ingested into an indexing system. The preprocessing can include receiving messages published to a first publish-subscribe messaging system, the messages containing raw machine data generated by one or more components in an information technology environment, performing one or more processing operations on at least some of the messages to generate preprocessed messages, republishing the preprocessed messages to a second publish-subscribe messaging system, and providing to the indexing system, a subset of the messages from the second publish-subscribe messaging system. Nodes in the pipeline can specify the preprocessing operations, and interconnections in the pipeline can represent data flow through the nodes of the pipeline.