Status on revisiting Metrics

[Jungtaek Lim <ka...@gmail.com>]

Hi devs,

As you may have seen, I'm working on improving Metrics without breaking
backward compatibility manner.
(I initiated the thread about improving Metrics with not considering
backward compatibility, but I guess it should be addressed at phase 2 on
merging JStorm.)

I filed 4 issues and submitted pull requests which are ready for reviewing.
Please review if you're interested on.

- Asynchronous MetricsConsumerBolt:
https://issues.apache.org/jira/browse/STORM-1698
- Introduce 'whitelist' / 'blacklist' option to MetricsConsumer:
https://issues.apache.org/jira/browse/STORM-1700
- Introduce REST API: Topology metric stats for stream:
https://issues.apache.org/jira/browse/STORM-1719
- Introduce ClusterMetricsConsumer:
https://issues.apache.org/jira/browse/STORM-1723

And also I initiated thread
<http://mail-archives.apache.org/mod_mbox/storm-user/201604.mbox/%3CCAF5108iwhGgae7Z2AKgMVNP4PWwV52GVc7Ex5h2oQ7fAAPX2PA@mail.gmail.com%3E>
regarding collecting ideas and use cases about metrics from user@.
Please let me know if anyone in dev@ but not in user@ want to discuss with
so I can add dev@ to recipient or cc.
I'll see and address if there're some valid and good inputs.

Thanks,
Jungtaek Lim (HeartSaVioR)