08-21-2008
Alright, then we do it this way: At all possible points of the program, prefix every command with "time". (You should make sure that the output from time doesn't interfere with your script in any way.) Run it on dev, then run it on production and see where the bottlenecks are.
If the main bottleneck is in the SYBASE inserts, then I suspect the problem is related to table-locking while the database is under heavy load.
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LEARN ABOUT DEBIAN
make_combined_log2
make_combined_log.pl(1) General Commands Manual make_combined_log.pl(1)
NAME
make_combined_log.pl - make combined logfile from SQL database
SYNOPSIS
make_combined_log.pl <days> <virtual host>
DESCRIPTION
This perl script extracts the httpd access data from a MySQL database and formats it properly for parsing by 3rd-party log analysis tools.
The script is intended to be run out by cron. Its commandline arguments tell it how many days' worth of access records to extract, and
which virtual_host you are interested in (because many people log several virthosts to one MySQL db.) This permits you to run it daily,
weekly, every 9 days -- whatever you decide.
NOTE
By "days" I mean "chunks of 24 hours prior to the moment this script is run." So if you run it at 4:34 p.m. on the 12th, it will go back
through 4:34 p.m. on the 11th.
KNOWN ISSUES
Because GET and POST are not discriminated in the MySQL log, we'll just assume that all requests are GETs. This should have negligible
effect on any analysis software. This could be remedied IF you stored the full HTTP request in your database instead of just the URI, but
that's going to cost you a LOT of space really quickly...
Because this is somewhat of a quick hack it doesn't do the most robust error checking in the world. Run it by hand to confirm your usage
before putting it in crontab.
AUTHOR
Edward Rudd <eddie@omegaware.com>
MAN PAGE CREATED BY
Michael A. Toth <lirul.lists@gmail.com> - based on comments of script
COMMENTS
This man page was written using xml2man (1) by the same author.
Manuals User make_combined_log.pl(1)