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Subject [GitHub] zentol commented on a change in pull request #6532: [FLINK-10109] Add documentation for StreamingFileSink
Date Mon, 13 Aug 2018 13:05:31 GMT
zentol commented on a change in pull request #6532: [FLINK-10109] Add documentation for StreamingFileSink
URL: https://github.com/apache/flink/pull/6532#discussion_r209600326
 
 

 ##########
 File path: docs/dev/connectors/streamfile_sink.md
 ##########
 @@ -0,0 +1,123 @@
+---
+title: "Streaming File Sink"
+nav-title: Streaming File Sink
+nav-parent_id: connectors
+nav-pos: 5
+---
+<!--
+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.
+-->
+
+This connector provides a Sink that writes partitioned files to filesystems
+supported by the Flink `FileSystem` abstraction. Since in streaming the input
+is potentially infinite, the streaming file sink writes data into buckets. The
+bucketing behaviour is configurable but a useful default is time-based
+bucketing where we start writing a new bucket every hour and thus get
+individual files that each contain a part of the infinite output stream.
+
+Within a bucket, we further split the output into smaller part files based on a
+rolling policy. This is useful to prevent individual bucket files from getting
+too big. This is also configurable but the default policy rolls files based on
+file size and a timeout, i.e if no new data was written to a part file. 
+
+The `StreamingFileSink` supports both row-wise encoding formats and
+bulk-encoding formats, such as [Apache Parquet](http://parquet.apache.org).
+
+#### Using Row-encoded Output Formats
+
+The only required configuration are the base path were we want to output our
 
 Review comment:
   typo: were -> where

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