The log management feature allows you to download log files and deliver real-time logs. You can create a task to deliver logs to Log Service. Then, you can analyze the logs to detect and identify issues. This topic describes how to download log files and deliver real-time logs.
Download log files
- Log download rules
- You can download only the logs that are generated in the last 30 days. Log files are generated on an hourly basis.
- Typically, log files are generated at a latency of 4 hours. If a large amount of data is accumulated, the latency may exceed 24 hours.
- Log files are named in the format of Domain name for CDN_Year_Month_Day_StartTime_EndTime, Example: www.example.com_2021_01_06_000000_010000.gz.
- The following table describes the fields in a downloaded log.
Field Parameter Time [9/Jun/2015:01:58:09 +0800] Visitor IP address 184.108.40.206 Proxy IP address N/A Response time (Unit: milliseconds) 1542 referer N/A method GET Requested URL http://www.aliyun.com/index.html httpcode 200 Request size (Unit: byte) 191 Response size (Unit: byte) 2830 Cache hit status HIT or MISS User-Agent header Mozilla/5.0 (compatible; AhrefsBot/5.0; +http://ahrefs.com/robot/) File type text or html