Statistics REST API for Agent
-----------------------------
Key: CHUKWA-515
URL: https://issues.apache.org/jira/browse/CHUKWA-515
Project: Chukwa
Issue Type: Sub-task
Reporter: Bill Graham
Develop a REST interface to expose Agent statistics.
* Request URI:
{noformat}
GET /rest/v1/adaptorStats HTTP/1.0
{noformat}
* For now I'm shooting for the XML response, but ultimately we can support
optional params:
{noformat}
viewType=[json|xml|text] (default is XML?)
{noformat}
* Response XML
TBD. My thought is to integrate with the {{AgentMetrics}} and
{{ChunkQueueMetrics}} and show their information, along with a list of
adaptors. It appears that the same {{MemQueue}} is shared amongst all adaptors,
so we won't be able to expose per-adaptor stats as is. Let me know if I'm
missing something there, or if you have comments in general about the approach.
I was planning on using Jetty similar to how the collector does. We could have
some common code that delegates requests to different handlers based on the
URI. The current telnet interface will remain as-is.
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