The process still has an open file handle, and will continue to do so even
after you move it. So, if your file is /var/log/messages, and you do a mv
/var/log/messages /var/log/messages.old or something (I know that's stupid,
but this is an example), the process will continue to write to
/var/log/messages.old.
The best way is what Chris said: copy the file, and cat /dev/null > logfile.
That'll truncate it well.
-----Original Message-----
From: Ragnar Kjørstad [mailto:postgres@ragnark.vestdata.no]
What's wrong with moving the file when it's in use?
Copying the file will take much longer, and you might loose log-entries
that are written after cp but before truncate.
--
Ragnar Kjorstad
