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Web Log Processing and Conversion 
Web Logs Have Their Formats. You Have Yours.

Challenges:
NCSA Common and W3C Extended Log Formats (CLF and ELF, respectively) are two popular structures for logging of clickstream activity on web sites. The visitor information recorded may include the IP address, timestamp, page URL, entry and exit pages, and so on.

As these logs grow in size, they can take a long time to process. And, they may not be in formats that your applications recognize or readily support.

Solutions:
IRI has technologies for both web-log-file format conversion as well as web log processing (transformation, conversion, reporting and field-level protection).

The conversion-only solution lies in a new, low-cost, file-format migration tool NextForm. NextForm can help you convert your CLF files into CSV and other flat-file formats.

Beyond format conversion, IRI's CoSort product can process (filter, sort, join, aggregate, scrub, reformat, etc.), protect, and report from these huge log files into CSV, LDIF, XML, text, index, and other structuredwhate file formats. To process common log format (CLF) files, CoSort uses a powerful 4GL data manipulation definition language called SortCL.

Both NextForm and CoSort include these data definition file (.ddf) templates for CLF users:

CLF_Access.ddf for common or access log files
CLF_Referral.ddf for referral log files
CLF_Agent.ddf for agent log files

Each of these .ddf files can be referenced centrally, or their field layout statements can be go directly into NextForm or CoSort (SortCL) job specification files to help you specify your source or target file conversions or processes, respectively.


>> More: ELF File Processing and Conversion
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