04-24-2013
I agree there is a potential problem with renaming the logfile, that maybe some data might be lost or something go wrong with the process of writing to the logfile. I was just trying to suggest something as an alternative to blanking out the file, but I would do neither.
What if you just gzip the file, and let it keep growing? You will have a 100% sure valid zip file, and you are 100% sure the log file will not be damaged, and you will be 100% sure that no data are lost. It's blanking out the log file or renaming the log file that introduces the data loss potential.
The zip file might fail to collect all the data in the log file, but it doesn't matter. The data are still in the log file. The zip file is complete as of some time point.
Maybe there is some reason you need to blank out (truncate) the log file?
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LEARN ABOUT HPUX
svcdumplog
svcdumplog(1m) svcdumplog(1m)
NAME
svcdumplog - Prints contents of a binary serviceability log file
SYNOPSIS
svcdumplog [-s num_of_entries] logfile
OPTIONS
The -s flag tells svcdumplog to skip the first num_of_entries log entries before printing, where num_of_entries is a number.
DESCRIPTION
The svcdumplog program will print the contents of a binary log file.
DCE components log important information about their activities and state via the DCE serviceability interface. The log messages can be
routed as desired via the dcecp log object. The messages can also be written in either binary or in text format (information about specify-
ing message format can be found in svcroute(5)). When binary format has been specified for a component's messages, each log entry will be
written as a binary record of data defined (in dce/svclog.h) as the contents of the serviceability prolog structure. The svcdumplog utility
will print the contents of such a binary log file as readable text.
RELATED INFORMATION
dce_svc_log_get(3), dce_svc_log_close(3), dce_svc_log_open(3), dce_svc_log_rewind(3), svcroute(5), log(1m)
Books: OSF DCE Porting and Testing Guide, OSF DCE Application Development Guide
svcdumplog(1m)