On Wed, Feb 02, 2000 at 10:54:07AM +0900, Wang-hua Li, Mack wrote:
> Hi there,
>
> I am having qmail-1.03 with daemontools-0.61 running and
> would like to have my logs rotated on a daily base. I learned from
> the Qmail Mailing List Archive that qfilelog could do just
> what I am expecting but all the messages there
> seem to be about older version of daemontools (cyclog).
> I wonder if anyone out there had got it running
> with daemontool-0.61 (multilog). How do I set my 'run script'
> to have them work together ?
This is the tricky bit. daemontools-0.61 introduced the concept of an
svscan pipe between a process and its logger. The reason was because
shell pipes are unreliable. In order to use qfilelog, you would have to
do something like:
qmail-start ./Maildir/ tai64n | qfilelog somefile
In you want to run this under daemontools-0.61, your run script would
be:
qmail-start ./Maildir/
And your log/run script would be:
tai64n | qfilelog somefile
This is where the problem is: You're back to using shell pipes and
there's a possibility of loss of logs if one of the components of the
pipeline dies unexpectedly. While there are convoluted ways of achieving
time-based rotation with multilog, I really wish it was a built-in
feature.
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