On Thu, 10 Mar 2005, Adams, Russell L. wrote:
Only to use:
/usr/bin/test `find /var/spool/mqueue -type f -name 'q*' | wc -l` -ge 12
instead of ls and grep and expr. ;]
Russell
On Thu, Mar 10, 2005 at 03:49:10PM -0500, nathan r. hruby wrote:Hi,
Here's something that I'm sure someone else has solved..
I'd like to monitor the number of files in /var/spool/mqueue and do 3 things when it hits a threshold: - Fire off a warning - run sendmail -q - Run a shell command to nuke some things (like SPAM!)
So, here's what I have now, which seems fairly inelegant: ----BEGIN SNIP classes: # See if we're overlimt MailqueOverLimit = ( ReturnsZero(/bin/sh -c "expr `ls /var/spool/mqueue/ | grep q.*| wc -l` \> 12 > /dev/null") )
Couldn't you use the control section to set a variable to the number of whatevers (files), and then set the class based on that? It'd also allow you to use the variable in the alerts to say how many there are.
alerts: # Tell us if we're overlimit (it'd be nice to have the actual # number...) MailqueOverLimit:: "WARNING: Mail queue is overlimit on $(fqhost)" ifelapsed=60
shellcommands: # Do something to make us not overlimit MailqueOverLimit:: "$(nuke_spam_bounces)" "$(run_a_qrunner)" ----END SNIP
This seems kinda like a kludge. Anyone have any better suggestions for monitoring the number of files in a directory?
Hmm. If I were doing it, I'd make a shell script. Of course, that would mean that alerts wouldn't work. I might also try a cfengine method.
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