51GB /var/dcc/log/

[Bob Pierce]

My /var/dcc/log/ directory has about 51GB of files that look like this:
8.0K -rw------- 1 root bin  6.6K May 26 05:10 msg.3wbrjV
 36K -rw------- 1 root bin   33K May 26 05:57 msg.3wbrJV
 12K -rw------- 1 root bin   11K May 27 10:03 msg.3wbRjv
 12K -rw------- 1 root bin  9.2K May 27 10:03 msg.3wbRjV

..All msg.[something]

Is it ok to get rid of these files?

Bob Pierce
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[Vernon Schryver]

> From: Bob Pierce

> My /var/dcc/log/ directory has about 51GB of files that look like this:
> 8.0K -rw------- 1 root bin  6.6K May 26 05:10 msg.3wbrjV
>  36K -rw------- 1 root bin   33K May 26 05:57 msg.3wbrJV
>  12K -rw------- 1 root bin   11K May 27 10:03 msg.3wbRjv
>  12K -rw------- 1 root bin  9.2K May 27 10:03 msg.3wbRjV
>
> ..All msg.[something]
>
> Is it ok to get rid of these files?

The cron job /var/dcc/libexec/cron-dccd is a good thing for DCC clients
(systems using dccproc, dccifd, or dccm), because among other things
it cleans the main DCC client log directory and the per-user log
directories.  It uses DBCLEAN_LOGDAYS in /var/dcc/dcc_conf.

That cron job required by any DCC server.  It also runs dbclean to
expire old data in the server databases (both the main DCC server
database and the greylist database if greylisting is used by the DCC
clients).  The cron job also does some sanity checking and restarts
the server if it is not running but dcc_conf says it should be.

The cron job is mentioned in the DCC installation instructions in
the DCC source or http://www.dcc-servers.net/dcc/INSTALL.html


Vernon Schryver    vjs@...
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[Bart Dumon-2]

On Thu, Sep 17, 2009 at 09:29:57AM -0500, Bob Pierce wrote:
> My /var/dcc/log/ directory has about 51GB of files that look like this:
> 8.0K -rw------- 1 root bin  6.6K May 26 05:10 msg.3wbrjV
>  36K -rw------- 1 root bin   33K May 26 05:57 msg.3wbrJV
>  12K -rw------- 1 root bin   11K May 27 10:03 msg.3wbRjv
>  12K -rw------- 1 root bin  9.2K May 27 10:03 msg.3wbRjV
>
> Is it ok to get rid of these files?

It's safe to delete msg.* (not tmp.*) but if you have made the logging available for your users somehow, they won't be able to see the logged messages you have deleted.

It may be worth looking at DCCM_LOG_AT (or DCCIFD_LOG_AT if you're using dccifd) in dcc_conf, you can increase the logging treshold so that less messages will be logged. It's also possible to decrease the size of logged messages but that's an at compile-time parameter you need to supply. (--with-max-log-size=KB).

Also there's an option called DBCLEAN_LOGDAYS which will clean the log directories for you, if you have scheduled cron-dccd ofcourse. You can also log messages in subdirectories (per day/hour/minute) which may just make cleaning up afterwards easier (and faster).


regards,
bart
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