10-03-2015
Quote:
I strongly suggest that instead of trying to match based on timestamps you instead keep track of the line number of the last line processed in the previous run and on the next run just start processing with the next line in that log file. Doing it this way will keep you from missing events and keep you from processing some events twice.
Furthur to Don_Cragun, and if I have understood the task correctly.
You need a script running under cron every 15 minutes which copies the current logfile and compares the line count with the previous version of the logfile. The script then processes the "tail -#" number of lines difference.
This is a basic technique to avoid "tail -f" on logfiles which will get deleted by log rotation scripts. It also avoids reading the logfile and processing all the timestamps in the logfile.
Don't forget the "first time" condition when the T-15 minutes copy does not exist. Your first run of the cron will just prepare the files.
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