Log file format
All log files have the same basic format. Each message forms a separate line in the file, and each line contains a list of comma-separated values, as follows:
▪record length in characters
▪date and time at which the record was written
▪ID of the component that generated the message. See
Component IDs
▪3-character code of the application or application group that generated the message
▪message text: In some files, messages start with the project name (–P name), respondent ID (–R ID) and interview ID (–I type). The interview ID is the session token for the interview.
The most useful fields are the date and time, the log level, and the message text.
The easiest way to read log files is using
Log DSC and
DM Query. This creates columns for the project, respondent, and interview IDs which you can then sort and search using SQL queries.
See also