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systemd_mem: fix handling unlimited number on debian stretch

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This commit is contained in:
Andreas Perhab 2021-10-14 15:08:37 +02:00 • committed by Lars Kruse
parent b21206c68c
commit b559571668
1 changed files with 15 additions and 8 deletions
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23
plugins/systemd/systemd_mem
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@ -58,12 +58,19 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SO
. "$MUNIN_LIBDIR/plugins/plugin.sh"
# at least on debian stretch services report this as unlimited / unknown value (2^64)
# see https://lists.freedesktop.org/archives/systemd-devel/2018-July/041092.html
SYSTEMD_UNLIMITED="18446744073709551615"
all_services=${all_services:-}
services=${services:-"munin-node"}
for_services() {
if [ "$all_services" != "" ]; then
systemctl --type=service --state=running --no-pager --no-legend --output=short-precise \
| awk '{sub(".service$", "", $1); print $1}'
else
echo ${services:-"munin-node"}
echo "$services"
fi
}
@ -75,18 +82,18 @@ output_config() {
echo "graph_category memory"
for service in $(for_services); do
clean_name="$(clean_fieldname "$service")"
description=$(systemctl show "$service" --property=Description | cut -d '=' -f 2)
description=$(systemctl show "$service" --property=Description | cut -d '=' -f 2-)
warning=$(systemctl show "$service" --property=MemoryHigh | cut -d '=' -f 2)
critical=$(systemctl show "$service" --property=MemoryMax | cut -d '=' -f 2)
if [ "$critical" = "infinity" ] ; then
if [ "$critical" = "infinity" ] || [ "$critical" = "$SYSTEMD_UNLIMITED" ] ; then
critical=$(systemctl show "$service" --property=MemoryLimit | cut -d '=' -f 2)
fi
printf "%s.label %s\n" "$clean_name" "$description"
printf "%s.info memory usage\n" "$clean_name"
if [ "$warning" != "infinity" ] ; then
if [ "$warning" != "infinity" ] && [ "$warning" != "$SYSTEMD_UNLIMITED" ] ; then
printf "%s.warning %s\n" "$clean_name" "$warning"
fi
if [ "$critical" != "infinity" ] ; then
if [ "$critical" != "infinity" ] && [ "$critical" != "$SYSTEMD_UNLIMITED" ] ; then
printf "%s.critical %s\n" "$clean_name" "$critical"
fi
done
@ -96,10 +103,10 @@ output_values() {
for service in $(for_services); do
clean_name="$(clean_fieldname "$service")"
usage=$(systemctl show "$service" --property=MemoryCurrent | cut -d '=' -f 2)
if [ "$usage" = "[not set]" ]; then
usage=0
if [ "$usage" = "[not set]" ] || [ "$usage" = "$SYSTEMD_UNLIMITED" ]; then
usage="U"
fi
printf "%s.value %d\n" "$clean_name" "$usage"
printf "%s.value %s\n" "$clean_name" "$usage"
done
}