GitHub user zsxwing opened a pull request:
https://github.com/apache/spark/pull/11034
Add FileStreamSource and a simple version of FileStreamSink
`FileStreamSource` is an implementation of
`org.apache.spark.sql.execution.streaming.Source`. It takes advantage of the
existing `HadoopFsRelationProvider` to support various file formats. It
remembers files in each batch and stores it into the metadata files so as to
recover them when restarting. The metadata files are stored in the file system.
There will be a further PR to clean up the metadata files periodically.
`FileStreamSink` is very simple and only supports text files for now.
Adding it in this patch mostly to help test `FileStreamSource`.
This is based on the initial work from @marmbrus.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zsxwing/spark stream-df-file-source
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11034.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #11034
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commit a2784ffc487046df2b9cc94064bc781759606908
Author: Shixiong Zhu <shixi...@databricks.com>
Date: 2016-02-02T22:28:11Z
Add FileStreamSource and FileStreamSink
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