Re: runit 1.05: svlogd rotation

[Gerrit Pape <pape@smarden.org>]

On Fri, Jan 21, 2005 at 07:56:58PM +0200, Alex Efros wrote:
> Probably I don't understand svlogd documentation correctly or there some
> (documentation?) bugs lurking around... I noticed a huge number of rotated
> log files @*.s exists, much more than allowed by logdir/config file in 'n'
> directive.
> 
> In some config files I've set 'n0' to have no old rotated log files
> (I need only up to last 1MB of data in "current" file). But looks like 'n0'
> mean: don't remove log files at all. :) Ok, I will use 'n1' instead of 'n0'
> in the future.

Yes, 'n0' means not removing log files at all on log rotation, I'll
clarify this in the documentation.

> But there also a lot of logdirs with:
> - no 'n' directive at all (this should be equal to 'n10')
> - 'n2' directive
> - 'n3' directive
> - 'n5' directive
> And in most of these directories I see a LOT of @*.s files instead of 2-3-5.
> In some directories without 'n' directive also a lot of @*.s files exists.

svlogd does not automatically reduce the number of log files.  If there
are already more log files in the log directory than specified in the
config file, svlogd will still only remove the oldest one on rotation;
adds one and removes one.  You would need to remove older log files by
hand if you change the configuration.  Maybe I should clarify that in
the documentation too, I think this may be your problem.

> Also there exists a lot of @*.u files. I know @*.u isn't usual rotated
> log file, but 'incomplete' log file. I understand what it isn't correct
> to rotate such incomplete logs just like usual logs because in this case
> we can finish with only 10 incomplete log files with 100-200 bytes in
> each left in log directory instead of last 10MB of log data.

On log file rotation svlogd treats the @*.u and @*.s files the same, it
maintains a number of @* files with a 27 characters long filename.

Regards, Gerrit.