Origin Server Statistics

Last updated: 2018-05-09 17:44:02

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Log in to CDN Console, and click "Origin" page under "Statistics" to review statistical data such as back-to-origin bandwidth, back-to-origin traffic and back-to-origin speed.

Query Criteria Instruction

The following query criteria are supported when querying back-to-origin statistic data:

Note:

  • Project: Query for usage data based on project is supported;

  • Domain: Query for usage data based on specified domain is supported;

  • Temporal granularity: This refers to the temporal granularity with which bandwidth and traffic data will be presented. This is related to the selected time span:

    If the selected time span is 1 day, you can query data with a temporal granularity of 5 minutes, 15 minutes, 30 minutes, 2 hours or 4 hours;
    If the selected time span is 2-3 days, you can query data with a temporal granularity of 15 minutes, 30 minutes, 2 hours or 4 hours;
    If the selected time span is 4-7 days, you can query data with a temporal granularity of 2 hours, 4 hours or 1 day;
    If the selected time span is more than 30 days, you can only query data with a temporal granularity of 4 hours or 1 day;

  • The minimum granularity of back-to-origin statistics is five minutes, that is, the statistical data from 2016-10-25 15:00:00 to 15:04:59 will be shown at the statistical point of 2016-10-25 15:05:00;

  • The latency of real-time data is about five minutes, that is, the statistical point of 2016-10-25 15:05:00 will appear around 2016-10-25 15:10:00;

  • All domains that have been connected by the user will be displayed in the "All domains" drop-down box; deleted domains are grayed out:

    If the domain has not been connected to CDN for the specified time range, it will not be covered in statistics even if it is checked;
    If the domain has been deleted for the specified time range, it will not be covered in statistics even if it is checked;
    If the domain experienced three stages (not connected, connected and deleted) for the specified time range, the statistical data for unconnected and deleted time period will be filled by 0.

Data Result Description

Note about statistics:

Back-to-origin failure rate statistics, back-to-origin failure analysis, and 404 status code are obtained from the statistical analysis of logs, thus such data are collected from the hosting source dimension:

Connect the accelerated domain "www.a.com" and set its hosting source to "www.c.com";
Connect the accelerated domain "www.b.com", and set its hosting source to "www.c.com";

In this situation, the query results regarding relevant information of "www.a.com" or "www.b.com" are the same, which will be the statistics of the origin server "www.c.com".

The statistics of back-to-origin bandwidth and back-to-origin speed are collected independently without following the above logic.

Back-to-origin Traffic and Bandwidth

Displays statistical curve graph of back-to-origin traffic and back-to-origin bandwidth:

Back-to-origin Speed

CDN provides back-to-origin speed monitoring to give you a better understanding of the quality of back-to-origin links. Back-to-origin speed is calculated by dividing the total traffic of all back-to-origin requests with the time spent by all back-to-origin requests, during the statistical cycle.

Back-to-origin Failure Rate

Displays the statistical curve graph of real-time back-to-origin failure rate:

Note:

  • Back-to-origin failure rate = number of failed back-to-origin requests / total number of back-to-origin requests. Situations when a request is considered failed include TCP connection timeout, origin server disconnection, incompatible HTTP protocols and 5XX server error. For more details, please refer to the following "Details of Back-to-origin Failure";
  • Statistical data regarding back-to-origin failure rate is provided starting from 2016-10-15. Currently you cannot query for data before this date;
  • You can configure real-time alarms against back-to-origin failure rate for CDN domains and projects in Cloud Monitoring.

Details of Back-to-origin Failure Types

In correspondence with back-to-origin failure rate, real-time statistics and proportions of various types of back-to-origin failures are displayed:

404 Status Code Statistics

Provides statistics of 404 status codes that are generated for back-to-origin requests:

Note:

  • Statistical data regarding 404 status codes is provided starting from 2016-10-15. Currently you cannot query for data before this date;