GitHub user jerryshao opened a pull request:
https://github.com/apache/spark/pull/13513
[SPARK-15698][SQL][Streaming] Add the ability to remove the old MetadataLog
in FileStreamSource
## What changes were proposed in this pull request?
Current `metadataLog` in `FileStreamSource` will add a checkpoint file in
each batch but do not have the ability to remove/compact, which will lead to
large number of small files when running for a long time. So here propose to
compact the old logs into one file. This method is quite similar to
`FileStreamSinkLog` but simpler.
## How was this patch tested?
Unit test added.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jerryshao/apache-spark SPARK-15698
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13513.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 #13513
----
commit 2ed1115966fdf8b6a8fba990599b230a04e00649
Author: jerryshao <ss...@hortonworks.com>
Date: 2016-06-02T03:14:48Z
Add the ability to remove the old MetadataLog in FileStreamSource
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