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#!/usr/bin/env bash
# netdata
# real-time performance and health monitoring, done right!
# (C) 2016 Costa Tsaousis <costa@tsaousis.gr>
# GPL v3+
#
# This script is a helper to allow netdata collect tc data
# parsing tc output has been implemented in C, inside netdata
# This script allows setting names to dimensions.
export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/sbin"
export LC_ALL=C
PROGRAM_FILE="$0"
PROGRAM_NAME="$(basename $0)"
PROGRAM_NAME="${PROGRAM_NAME/.plugin}"
# -----------------------------------------------------------------------------
logdate() {
date "+%Y-%m-%d %H:%M:%S"
}
log() {
local status="${1}"
shift
echo >&2 "$(logdate): ${PROGRAM_NAME}: ${status}: ${*}"
}
warning() {
log WARNING "${@}"
}
error() {
log ERROR "${@}"
}
info() {
log INFO "${@}"
}
fatal() {
log FATAL "${@}"
exit 1
}
debug=0
debug() {
[ $debug -eq 1 ] && log DEBUG "${@}"
}
# -----------------------------------------------------------------------------
plugins_dir="${NETDATA_PLUGINS_DIR}"
[ -z "$plugins_dir" ] && plugins_dir="$( dirname $PROGRAM_FILE )"
config_dir=${NETDATA_CONFIG_DIR-/etc/netdata}
tc="$(which tc 2>/dev/null)"
fireqos_run_dir="/var/run/fireqos"
qos_get_class_names_every=120
qos_exit_every=3600
# check if we have a valid number for interval
t=${1}
update_every=$((t))
[ $((update_every)) -lt 1 ] && update_every=${NETDATA_UPDATE_EVERY}
[ $((update_every)) -lt 1 ] && update_every=1
# allow the user to override our defaults
if [ -f "${config_dir}/tc-qos-helper.conf" ]
then
source "${config_dir}/tc-qos-helper.conf"
fi
# default sleep function
LOOPSLEEPMS_LASTWORK=0
loopsleepms() {
sleep $1
}
# if found and included, this file overwrites loopsleepms()
# with a high resolution timer function for precise looping.
. "${plugins_dir}/loopsleepms.sh.inc"
if [ -z "${tc}" -o ! -x "${tc}" ]
then
fatal "cannot find command 'tc' in this system."
fi
devices=
fix_names=
setclassname() {
echo "SETCLASSNAME $3 $2"
}
show_tc() {
local x="${1}" interface_dev interface_classes interface_classes_monitor
echo "BEGIN ${x}"
${tc} -s class show dev ${x}
# check FireQOS names for classes
if [ ! -z "${fix_names}" -a -f "${fireqos_run_dir}/ifaces/${x}" ]
then
name="$(<"${fireqos_run_dir}/ifaces/${x}")"
echo "SETDEVICENAME ${name}"
interface_dev=
interface_classes=
interface_classes_monitor=
source "${fireqos_run_dir}/${name}.conf"
for n in ${interface_classes_monitor}
do
setclassname ${n//|/ }
done
[ ! -z "${interface_dev}" ] && echo "SETDEVICEGROUP ${interface_dev}"
fi
echo "END ${x}"
}
all_devices() {
cat /proc/net/dev | grep ":" | cut -d ':' -f 1 | while read dev
do
l=$(${tc} class show dev ${dev} | wc -l)
[ $l -ne 0 ] && echo ${dev}
done
}
# update devices and class names
# once every 2 minutes
names_every=$((qos_get_class_names_every / update_every))
# exit this script every hour
# it will be restarted automatically
exit_after=$((qos_exit_every / update_every))
c=0
gc=0
while [ 1 ]
do
fix_names=
c=$((c + 1))
gc=$((gc + 1))
if [ ${c} -le 1 -o ${c} -ge ${names_every} ]
then
c=1
fix_names="YES"
devices="$( all_devices )"
fi
for d in ${devices}
do
show_tc ${d}
done
echo "WORKTIME ${LOOPSLEEPMS_LASTWORK}"
loopsleepms ${update_every}
[ ${gc} -gt ${exit_after} ] && exit 0
done
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