Limiting the cron log file

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Limiting the cron log file

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All Forums >> [SFU / Interix / SUA Technology] >> SFU / Interix - Getting Started >> Limiting the cron log file

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Limiting the cron log file - Jan. 23, '03, 12:03:11 PM

stowery

Posts: 1
Joined: Jan. 23, '03,
Status: offline

I am looking for some advice regarding how to best limit the size of the cron log file in Interix. I want to use the logging feature, but I want to avoid having the cron create a really huge log file. What is the best method for avoiding this situation? Is there a configuration setting which allows the user to impose a file size limit just on the cron log? Is it necessary to write a script to move the cron log to another filename, delete the file, and create a new file?

Thanks in advance for any suggestions.

Stuart

Post #: 1

RE: Limiting the cron log file - Jan. 23, '03, 12:50:21 PM

Rodney

Posts: 3728
Joined: Jul. 9, '02,
From: /Tools lab
Status: offline

The most straightforward thing to do is roll the log file after a certain number of days. Done with cron itself of course.
You' ll want the cron job to send a SIGHUP at the cron daemon.
The PID is in the file " /var/run/cron.pid" .
You likely want have a couple of " rolls" to make it so data doesn' t disappear too quickly. So something like:
mv /usr/lib/cron/cron.log.1.gz /usr/lib/cron/cron.log.2.gz
mv /usr/lib/cron/cron.log /usr/lib/cron.log.1
kill HUP `cat /var/run/cron.pid`
gzip /usr/lib/cron/cron.log.1

for your cron job once a week or whatever timeframe you like. The gzip is just to save some space -- only do the gzip after the HUP otherwise cron will still be writting to it.

- Rodney

(in reply to stowery)