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df0be87b18
Merge feature/ingest branch into master branch. This adds the ingest feature to ES that allows to preprocess document before indexing on an ingest node. By default a node is an ingest node. Documents are preprocessed via a pipeline. A pipeline consists out of one or more processors Each processor makes one or more modifications to a document processed. There are many types of processors available out-of-the-box that are designed to make a specific change to a document being processed. In a cluster many pipeline can be configured via dedicated pipeline APIs. An new option on the bulk and index APIs allows to control what pipeline is picked for preprocessing. If no pipeline is specified then the ingest feature is skipped and no preprocessing takes place.