yandex/mediastorage-proxy — pull request #4 by shindo (2014-11-18 18:49:10+00:00)
Title: update to handystats v2

**DO NOT MERGE**

Request metrics collection mechanics is performed via request_wrapper.
Upload request instrumented.
Handystats' file_logger added ("stats-log" config section).

Collected metrics:

* mds.\
-- rate for request (get, upload)

* mds.\.\.time
-- timings for reply code group (2xx, 3xx) of request (get, upload)
-- 'frequency' statistic may be used for rps

* mds.\.reply.\
-- rate for reply code or group (2xx, 404, etc.) of request (get, upload)