GitHub user wushujames opened a pull request:
https://github.com/apache/kafka/pull/3535
KAFKA-5597: Autogenerate producer sender metrics.
Subtask of https://issues.apache.org/jira/browse/KAFKA-3480
The changes are very similar to what was done for the consumer in
https://issues.apache.org/jira/browse/KAFKA-5191 (pull request
https://github.com/apache/kafka/pull/2993)
A screenshot of the docs are here:

You can merge this pull request into a Git repository by running:
$ git pull https://github.com/wushujames/kafka producer_sender_metrics_docs
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/kafka/pull/3535.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 #3535
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commit 33f876fa471048ec6ddd7c05dbd5935d0157eca3
Author: James Cheng <[email protected]>
Date: 2017-07-16T08:29:30Z
Autogenerate producer sender metrics.
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