Github user JPercivall commented on a diff in the pull request: https://github.com/apache/nifi/pull/339#discussion_r60915556 --- Diff: nifi-docs/src/main/asciidoc/nifi-in-depth.adoc --- @@ -0,0 +1,209 @@ +// +// Licensed to the Apache Software Foundation (ASF) under one or more +// contributor license agreements. See the NOTICE file distributed with +// this work for additional information regarding copyright ownership. +// The ASF licenses this file to You under the Apache License, Version 2.0 +// (the "License"); you may not use this file except in compliance with +// the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +// +Apache NiFi In Depth +==================== +Apache NiFi Team <dev@nifi.apache.org> +:homepage: http://nifi.apache.org + +Intro +----- +This advanced level document is aimed at providing an in-depth look at the implementation and design decisions of NiFi. It assumes the reader has read enough of the other documentation to know the basics of NiFi. + +FlowFiles are at the heart of NiFi and its flow-based design. A FlowFile is just a collection of attributes and a pointer to content, which is associated with one or more provenance events. The attributes are key/value pairs that act as the metadata for the FlowFile, such as the FlowFile filename. The content is the actual data or the payload of the file. Provenance is a record of whatâs happened to the FlowFile. Each one of these parts has its own repository (repo) for storage. --- End diff -- That's fair, I will reword
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