GitHub user jerryshao opened a pull request:
https://github.com/apache/spark/pull/11994
[SPARK-14151] Expose metrics Source and Sink interface
## What changes were proposed in this pull request?
This patch tries to expose metrics Source and Sink interface for external
developers, this will:
1. Let user to define their own Sink and Source implementation and plug
into `MetricsSystem`.
2. Alleviate the maintenance overhead of Spark code base. Spark itself
doesn't need to maintain several different sinks and sources.
## How was this patch tested?
Unit test is added and local integrated test is done.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jerryshao/apache-spark SPARK-14151
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11994.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 #11994
----
commit fecc7f659293c8657b2c089a4aae15d6c762a169
Author: jerryshao <[email protected]>
Date: 2016-03-28T02:01:43Z
Refactor and expose metrics system Source and Sink interface
commit 29bf76eef68eec31ef2109c7a7d41a136c0711da
Author: jerryshao <[email protected]>
Date: 2016-03-28T07:31:41Z
Fix bug and add unit test
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