Log Formats

• National Center for Supercomputing Applications - Wikipedia, the free encyclopedia
• Common Log Format - Wikipedia, the free encyclopedia
• The Common Log Format, also known as the NCSA Common Log Format, is a standardized text file format used by web servers when generating server log files. 
• Webalizer
• Analog

127.0.0.1 user-identifier frank [10/Oct/2000:13:55:36 -0700] "GET /apache_pb.gif HTTP/1.0" 200 2326

• Extended Log File Format
• Extended Log Format - Wikipedia, the free encyclopedia
• Extended Log Format (ELF) is a standardized text file format, like Common Log Format (CLF), that is used by web servers when generating log files, but ELF files provide more information and flexibility.
• Extended Log File Format

From "Real-Time Analytics"

• ..., which was never intended to support the Rich Data Payloads (and does so poorly).