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#!/usr/bin/sh # -*- 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 [ "$1" = "config" ]; then echo 'graph_title File table usage' echo 'graph_args --base 1000 -l 0' echo 'graph_vlabel number of open files' echo 'graph_category system' echo 'graph_info This graph monitors the Linux open files table.' echo 'used.label open files' echo 'used.info The number of currently open files.' computed_warning=$(awk '{printf "%d", $3*0.92}' < /proc/sys/fs/file-nr) computed_critical=$(awk '{printf "%d", $3*0.98}' < /proc/sys/fs/file-nr) p_warning=$(print_warning used) p_critical=$(print_critical used) [ -z "$p_warning" ] && echo "used.warning $computed_warning" || echo "$p_warning" [ -z "$p_critical" ] && echo "used.critical $computed_critical" || echo "$p_critical" exit 0 fi awk '{print "used.value " $1-$2}' < /proc/sys/fs/file-nr