You can rotate the vcld log without having to restart the daemon. Here is the 
entry I have in my /etc/logrotate.conf file:

/var/log/vcld.log {
    size 200M
    rotate 6

The copytruncate directive truncates the original log file in place after 
creating a copy, so the daemon does not have to be restarted. It has worked 
well for me.

Mike Waldron
Systems Specialist
ITS Research Computing
University of North Carolina at Chapel Hill
CB #3420, ITS Manning, Rm 2509

-----Original Message-----
From: Clifton B Wood [] 
Sent: Wednesday, July 21, 2010 3:47 PM
Subject: VCL.log and Logrotate

I've tried getting this to work with no luck. It seems that 
VCL never closes the log file and there doesn't look to be any 
way to do so without restarting VCL. The big question then is: 
when is it safe to restart VCLd?

Most programs use SIGHUP to reread-config files, and also 
reset log files. VCLd does not do this, since HUNTSMAN() is 
linked to $SIG{HUP} and that effectively ends VCLd. 

What would be a good way to reset the log files in both VCLd 
and any forked children?

If I can come up with a way to do this, would the VCL project 
be interested in a patch?

- Cliff

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