GitHub user jerryshao opened a pull request:
https://github.com/apache/spark/pull/15210
[SPARK-17604][SQL][Streaming] Supprt purging aged file entries in
FileStreamSourceLog
## What changes were proposed in this pull request?
Currently with
[SPARK-15698](https://issues.apache.org/jira/browse/SPARK-15698),
FileStreamSource metadata log will be compacted periodically (10 batches by
default), this means compacted batch file will contain whole file entries been
processed. With the time passed, the compacted batch file will be accumulated
to a very large file.
With [SPARK-17165](https://issues.apache.org/jira/browse/SPARK-17165), now
FileStreamSource doesn't track the aged file entry in memory, but in the log we
still keep the full logs, this is not necessary and quite time-consuming during
recovery. So here propose to also add file entry purging ability to remove aged
file entries.
## 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-17604
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15210.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 #15210
----
commit 20a6c4b2116c8b41bf675e40c0bb9a5297225051
Author: jerryshao <[email protected]>
Date: 2016-09-23T02:20:12Z
Supprt purging aged file entries in FileStreamSourceLog
----
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
