Re: How to control multilog files? (and other logs stuff)

Hi

You can use the s (size) and n (number of files) options as described  
here:

http://cr.yp.to/daemontools/multilog.html

Besides, keep in mind how qmail works: every log message is printed to  
stdout and piped to /service/WHATEVER/log/run's stdin, which usually  
runs multilog. But you can replace it with any other program, as long  
as it can read its input from stdin. You could easily code a script  
that reads from stdin and inserts every log line on a DB, if that's  
what you want.

For example, at a company I worked at our /service/qmail-smtpd/log/run  
file looked like this:

#!/bin/sh
setuidgid qmaill \
envdir ./env \
sh -c '
     exec /usr/bin/funnel \| \
     "| /var/qmail/bin/splogger smtpd 17" | \
     multilog \
         t \
         ${MAXFILESIZE+"s$MAXFILESIZE"} \
         ${MAXLOGFILES+"n$MAXLOGFILES"} \
         ${PROCESSOR+"!$PROCESSOR"} \
         /var/qmail/log/qmail-smtpd
'

By using funnel we sent qmail's output to two logger programs:  
multilog AND splogger. Multilog did local logs, and was easily setup  
with the env/MAXFILESIZE, MAXLOGFILES and PROCESSOR files; and  
splogger was configured to send a copy of every log line to a central  
syslog server (our mail system was a cluster of seven).

Hope that helps

Regards

El 11/11/2008, a las 13:13, Jimmy Spam escribió:

> How work and how I can configure multilog? I can't found many info  
> about it.
>
> At this moment, my qmail-logs are rotated when it's weight is about  
> 16775250bytes.
>
> with this size i can store logs during 1 month aprox.
>
> I'm thinking from many time ago about the posibility of store all  
> log (or a copied of them) of all components of my server (qmail- 
> smtpd, qmail-scanner, kav...) in a DB as mysql or postgre, for can  
> do queries easily from many manners. what do you think about this?  
> experience? advices?

-- 
   Vicente Aguilar <[email protected]> | http://www.bisente.com