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#!@@GOODSH@@
# -*- sh -*-
: << =cut
=head1 NAME
open_files - Plugin to monitor the number of open files in the system
=head1 CONFIGURATION
No configuration
=head1 AUTHOR
Unknown author
=head1 LICENSE
GPLv2
=head1 MAGIC MARKERS
#%# family=auto
#%# capabilities=autoconf
=cut
. $MUNIN_LIBDIR/plugins/plugin.sh
if [ "$1" = "autoconf" ]; then
if [ -r /proc/sys/fs/file-nr ]; then
echo yes
exit 0
else
echo no
exit 0
fi
fi
if [ "$1" = "config" ]; then
echo 'graph_title File table usage'
echo 'graph_args --base 1000 -l 0'
echo 'graph_vlabel number of open files'
echo 'graph_category system'
echo 'graph_info This graph monitors the Linux open files table.'
echo 'used.label open files'
echo 'used.info The number of currently open files.'
print_warning used
print_critical used
echo 'max.label max open files'
echo 'max.info The maximum supported number of open files. Tune by modifying /proc/sys/fs/file-max.'
print_warning max
print_critical max
awk '{printf "used.warning %d\nused.critical %d\n",$3*0.92,$3*0.98}' < /proc/sys/fs/file-nr
exit 0
fi
awk '{print "used.value " $1-$2 "\nmax.value " $3}' < /proc/sys/fs/file-nr
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