GitHub user ericl opened a pull request:
https://github.com/apache/spark/pull/17475
[SPARK-20148] [SQL] Extend the file commit API to allow subscribing to task
commit messages
## What changes were proposed in this pull request?
The internal FileCommitProtocol interface returns all task commit messages
in bulk to the implementation when a job finishes. However, it is sometimes
useful to access those messages before the job completes, so that the driver
gets incremental progress updates before the job finishes.
This adds an `onTaskCommit` listener to the internal api.
## How was this patch tested?
Unit tests.
cc @rxin
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ericl/spark file-commit-api-ext
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/17475.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 #17475
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commit a541fdd34d71656c6932eadb3edad9b782a1ae22
Author: Eric Liang <[email protected]>
Date: 2017-03-29T23:16:40Z
initial commit
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