Taking back up of log file for running process/

route · 02-16-2010, 12:52 AM

I am working in HP UNIX
I have one process which is runnuing continusly.There is log file generated for the process. I want to take back up of file without loosing any logs after perticular interval of time or say file size increases more that 1GB.
what can be possible solution?

smoker · 02-17-2010, 08:16 AM

Set up a cron job with the correct privileges to move and rename the existing log once a day to a backup log. Then touch a new log file.
You don't say what the process is, is there a facility to specify maximum log file size ?
Have a look how other log files are handled and copy the format.

regards

Alan

route · 02-17-2010, 11:44 PM

Its a JVM process generating sysout.log
can u please explain me how can i set crons?.

smoker · 02-18-2010, 05:15 AM

I suggest you check out

Code:

man -a crontab

on your system for accurate details of your crontab set up.
Basically you write a shell script to copy and rename your file, and use crontab to run that script as specific times.

I can't help much more than that, because there are details about the job I don't know.
Things to consider -
Has the JVM got a lock on the log file preventing any other access while it's running ?
When is the quietest time to do the change ?
How long are you going to keep the backups ?

etc.