[jira] [Created] (HBASE-16800) Support for smart querying of our published jmx per server over http+json

["stack (JIRA)" <ji...@apache.org>]

stack created HBASE-16800:
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             Summary: Support for smart querying of our published jmx per server over http+json
                 Key: HBASE-16800
                 URL: https://issues.apache.org/jira/browse/HBASE-16800
             Project: HBase
          Issue Type: Improvement
          Components: metrics
            Reporter: stack
            Assignee: stack


We currently expose our jmx metrics via a json dump in a servlet at /jmx. You get all or nothing (You can add a '?description=true' to get a description for each metric published but that is it).

A means of being able to query by metric or by a set of metrics would make graphing easier to do, especially over http dumping json. In particular, our [~appy] is trying to put up pages that give insight into current state of replication.

Related, HBASE-11747 ClusterStatus is too bulky, is about how whenever we need a metric 'exposed', our only means is by bulking out the heartbeat adding payload on each message we send the server (In the issue, w/ 1M regions, each RS is sending 100MB of 'status' every second). We need to undo metrics collection from clusterstatus function

Bonus if able to compress/cache payloads, security, etc.



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