I have a backup application that writes logs to file names that are
dated.. e.g. logfile.MMDDYY , and I am looking for the best way of
detecting the existence of the file, and then open the file from the
beginning under SEC. The backup application can fire off nearly any
time of day, so the file is not guaranteed to be there because of a
variable backup window. The directory that the logfile is written to is
also read-only to my correlator process. What are some methods of
elegantly handling these logs?
The -input=logfile* glob is ok, but is only useful on start/restart,
with the new logs being effectively invisible until the next restart. I
have tried dropping symbolic links in a directory that I have write
access to linking the fixed target with the monitored file name
logfile.MMDDYY. When the file is created by the application, SEC
handles the new monitored file name as a log file shuffle. What I am
thinking is that at midnight, I remove the existing link, and then
re-link to the monitored file name. I wrote the below example, and it
works as expected, but I am interested how SEC will handle the hours in
between the time of symbolic link creation, and the time of the
monitored file creation.
type=Calendar
time=* * * * *
desc=create new logfile sym link
action=spawn ( \
cd /Users/peiffer/sec-2.5.3/glob ; \
rm logfile ; \
ln -s logfile.`date +%m%d%y` logfile \
)
type=Single
ptype=RegExp
pattern=(.*)
desc=new event
action=logonly %s $1
Tim
--
Tim Peiffer
Network Support Engineer
Office of Information Technology
University of Minnesota/NorthernLights GigaPOP
+1 612 626-7884 (desk)
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