Hello, I am planning to extend current metrics endpoint (/metrics/snapshot) to only return a specific type of metrics (either counter, gauge or timer). It would be great if I can get feedback from you if this is worth pursuing, or there is an existing solution, or my implementation plan is sound.
Current /metrics/snapshot endpoint returns all metrics as key-value pairs for both master and agent. There is an additional timeout parameter for that endpoint. For backward compatibility, I want to add another parameter (`type` or `metric_type`) that will take a value of (`counter`, `gauge` or `timer`) and the endpoint will only return metrics of that type. My implement plan is to extend libprocess to support that, particularly: 1. Introduce a variable called `type` in metric.hpp 2. Extend constructors of Timer, Counter and Gauge classes to set that variable 3. Extend Future<http::Response> MetricsProcess::_snapshot() function in metrics.cpp to support additional query parameter How does that sound? I would love to hear feedback from you! Thanks, Tuan.
