| .. |
| .. Copyright 2015 Comcast Cable Communications Management, LLC |
| .. |
| .. Licensed under the Apache License, Version 2.0 (the "License"); |
| .. you may not use this file except in compliance with the License. |
| .. You may obtain a copy of the License at |
| .. |
| .. http://www.apache.org/licenses/LICENSE-2.0 |
| .. |
| .. Unless required by applicable law or agreed to in writing, software |
| .. distributed under the License is distributed on an "AS IS" BASIS, |
| .. WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| .. See the License for the specific language governing permissions and |
| .. limitations under the License. |
| .. |
| |
| .. _reference-label-tc-ts: |
| .. |arrow| image:: fwda.png |
| |
| |
| Traffic Stats |
| ============= |
| Traffic Stats is a collection of utilities written in `Go <http.golang.org>`_ that are used to acquire and store statistics about CDNs controlled by Traffic Control. Traffic Stats mines metrics from Traffic Monitor's JSON APIs and stores the data in `InfluxDb <http://influxdb.com>`_. Data is typically stored in InfluxDb on a short-term basis (30 days or less) and is used to drive graphs created by `Grafana <http://grafana.org>`_ which are linked from Traffic Ops. Traffic Stats contains two separate services: write traffic stats and ts daily summary. See below for more information. |
| |
| |arrow| Write Traffic Stats |
| ------------------------ |
| Write Traffic Stats gathers stat data for Edge Caches and Delivery Services at a configurable interval from the Traffic Monitor API's and stores the data in InfluxDb. |
| |
| |arrow| TS Daily Summary |
| ------------------------ |
| TS (Traffic Stats) Daily Summary is a process that runs once a day, gathers summary data for the previous day from InfluxDb, and stores it in the Traffic Ops Database. The stats that are currently summarized are Max Bandwidth and Bytes Served. |
| |
| |
| Any number of Traffic Stats instances may run on a given CDN to collect metrics from Traffic Monitor, however, integration with a long term metrics storage system is implementation dependent. |
| |
| Traffic Stats does not influence overall CDN operation, but is required in order to display charts in Traffic Operations. |
