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authorDaniel Baumann <daniel.baumann@progress-linux.org>2018-11-07 12:22:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2018-11-07 12:22:44 +0000
commit1e6c93250172946eeb38e94a92a1fd12c9d3011e (patch)
tree8ca5e16dfc7ad6b3bf2738ca0a48408a950f8f7e /collectors/fping.plugin
parentUpdate watch file (diff)
downloadnetdata-1e6c93250172946eeb38e94a92a1fd12c9d3011e.tar.xz
netdata-1e6c93250172946eeb38e94a92a1fd12c9d3011e.zip
Merging upstream version 1.11.0+dfsg.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'collectors/fping.plugin')
-rw-r--r--collectors/fping.plugin/Makefile.am24
-rw-r--r--collectors/fping.plugin/Makefile.in591
-rw-r--r--collectors/fping.plugin/README.md96
-rw-r--r--collectors/fping.plugin/fping.conf44
-rw-r--r--collectors/fping.plugin/fping.plugin200
-rwxr-xr-xcollectors/fping.plugin/fping.plugin.in200
6 files changed, 1155 insertions, 0 deletions
diff --git a/collectors/fping.plugin/Makefile.am b/collectors/fping.plugin/Makefile.am
new file mode 100644
index 000000000..4395394db
--- /dev/null
+++ b/collectors/fping.plugin/Makefile.am
@@ -0,0 +1,24 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+AUTOMAKE_OPTIONS = subdir-objects
+MAINTAINERCLEANFILES = $(srcdir)/Makefile.in
+
+CLEANFILES = \
+ fping.plugin \
+ $(NULL)
+
+include $(top_srcdir)/build/subst.inc
+SUFFIXES = .in
+
+dist_plugins_SCRIPTS = \
+ fping.plugin \
+ $(NULL)
+
+dist_noinst_DATA = \
+ fping.plugin.in \
+ README.md \
+ $(NULL)
+
+dist_libconfig_DATA = \
+ fping.conf \
+ $(NULL)
diff --git a/collectors/fping.plugin/Makefile.in b/collectors/fping.plugin/Makefile.in
new file mode 100644
index 000000000..67b9699b7
--- /dev/null
+++ b/collectors/fping.plugin/Makefile.in
@@ -0,0 +1,591 @@
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+ if test -z '$(STRIP)'; then \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+ -test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES)
+clean: clean-am
+
+clean-am: clean-generic mostlyclean-am
+
+distclean: distclean-am
+ -rm -f Makefile
+distclean-am: clean-am distclean-generic
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-dist_libconfigDATA \
+ install-dist_pluginsSCRIPTS
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-dist_libconfigDATA \
+ uninstall-dist_pluginsSCRIPTS
+
+.MAKE: install-am install-strip
+
+.PHONY: all all-am check check-am clean clean-generic cscopelist-am \
+ ctags-am distclean distclean-generic distdir dvi dvi-am html \
+ html-am info info-am install install-am install-data \
+ install-data-am install-dist_libconfigDATA \
+ install-dist_pluginsSCRIPTS install-dvi install-dvi-am \
+ install-exec install-exec-am install-html install-html-am \
+ install-info install-info-am install-man install-pdf \
+ install-pdf-am install-ps install-ps-am install-strip \
+ installcheck installcheck-am installdirs maintainer-clean \
+ maintainer-clean-generic mostlyclean mostlyclean-generic pdf \
+ pdf-am ps ps-am tags-am uninstall uninstall-am \
+ uninstall-dist_libconfigDATA uninstall-dist_pluginsSCRIPTS
+
+.in:
+ if sed \
+ -e 's#[@]localstatedir_POST@#$(localstatedir)#g' \
+ -e 's#[@]sbindir_POST@#$(sbindir)#g' \
+ -e 's#[@]sysconfdir_POST@#$(sysconfdir)#g' \
+ -e 's#[@]pythondir_POST@#$(pythondir)#g' \
+ -e 's#[@]configdir_POST@#$(configdir)#g' \
+ -e 's#[@]libconfigdir_POST@#$(libconfigdir)#g' \
+ -e 's#[@]cachedir_POST@#$(cachedir)#g' \
+ $< > $@.tmp; then \
+ mv "$@.tmp" "$@"; \
+ else \
+ rm -f "$@.tmp"; \
+ false; \
+ fi
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/collectors/fping.plugin/README.md b/collectors/fping.plugin/README.md
new file mode 100644
index 000000000..0554a7edc
--- /dev/null
+++ b/collectors/fping.plugin/README.md
@@ -0,0 +1,96 @@
+# fping.plugin
+
+The fping plugin supports monitoring latency, packet loss and uptime of any number of network end points,
+by pinging them with `fping`.
+
+A recent version of `fping` is required (one that supports option ` -N `).
+The supplied plugin can install it, by running:
+
+```sh
+/usr/libexec/netdata/plugins.d/fping.plugin install
+```
+
+The above will download, build and install the right version as `/usr/local/bin/fping`.
+
+Then you need to edit `/etc/netdata/fping.conf` (to edit it on your system run
+`/etc/netdata/edit-config fping.conf`) like this:
+
+```sh
+# uncomment the following line - it should already be there
+fping="/usr/local/bin/fping"
+
+# set here all the hosts you need to ping
+# I suggest to use hostnames and put their IPs in /etc/hosts
+hosts="host1 host2 host3"
+
+# override the chart update frequency - the default is inherited from netdata
+update_every=1
+
+# time in milliseconds (1 sec = 1000 ms) to ping the hosts
+# 200 = 5 pings per second
+ping_every=200
+
+# other fping options - these are the defaults
+fping_opts="-R -b 56 -i 1 -r 0 -t 5000"
+```
+
+## alarms
+
+netdata will automatically attach a few alarms for each host.
+Check the [latest versions of the fping alarms](https://github.com/netdata/netdata/blob/master/health/health.d/fping.conf)
+
+## Additional Tips
+
+### Customizing Amount of Pings Per Second
+
+For example, to update the chart every 10 seconds and use 2 pings every 10 seconds, use this:
+
+```sh
+# Chart Update Frequency (Time in Seconds)
+update_every=10
+
+# Time in Milliseconds (1 sec = 1000 ms) to Ping the Hosts
+# The Following Example Sends 1 Ping Every 5000 ms
+# Calculation Formula: ping_every = (update_every * 1000 ) / 2
+ping_every=5000
+```
+
+### Multiple fping Plugins With Different Settings
+
+You may need to run multiple fping plugins with different settings for different end points.
+For example, you may need to ping a few hosts 10 times per second, and others once per second.
+
+netdata allows you to add as many `fping` plugins as you like.
+
+Follow this procedure:
+
+**1. Create New fping Configuration File**
+
+
+```sh
+# Step Into Configuration Directory
+cd /etc/netdata
+
+# Copy Original fping Configuration File To New Configuration File
+cp fping.conf fping2.conf
+```
+
+Edit `fping2.conf` and set the settings and the hosts you need for the seconds instance.
+
+**2. Soft Link Original fping Plugin to New Plugin File**
+
+```sh
+# Become root (If The Step Step Is Performed As Non-Root User)
+sudo su
+
+# Step Into The Plugins Directory
+cd /usr/libexec/netdata/plugins.d
+
+# Link fping.plugin to fping2.plugin
+ln -s fping.plugin fping2.plugin
+```
+
+That's it. netdata will detect the new plugin and start it.
+
+You can name the new plugin any name you like.
+Just make sure the plugin and the configuration file have the same name.
diff --git a/collectors/fping.plugin/fping.conf b/collectors/fping.plugin/fping.conf
new file mode 100644
index 000000000..63a7f7acd
--- /dev/null
+++ b/collectors/fping.plugin/fping.conf
@@ -0,0 +1,44 @@
+# no need for shebang - this file is sourced from fping.plugin
+
+# fping.plugin requires a recent version of fping.
+#
+# You can get it on your system, by running:
+#
+# /usr/libexec/netdata/plugins.d/fping.plugin install
+
+# -----------------------------------------------------------------------------
+# configuration options
+
+# The fping binary to use. We need one that can output netdata friendly info
+# (supporting: -N). If you have multiple versions, put here the full filename
+# of the right one
+
+#fping="/usr/local/bin/fping"
+
+
+# a space separated list of hosts to fping
+# we suggest to put names here and the IPs of these names in /etc/hosts
+
+hosts=""
+
+
+# The update frequency of the chart - the default is inherited from netdata
+
+#update_every=2
+
+
+# The time in milliseconds (1 sec = 1000 ms) to ping the hosts
+# by default 5 pings per host per iteration
+# fping will not allow this to be below 20ms
+
+#ping_every="200"
+
+
+# other fping options - defaults:
+# -R = send packets with random data
+# -b 56 = the number of bytes per packet
+# -i 1 = 1 ms when sending packets to others hosts (switching hosts)
+# -r 0 = never retry packets
+# -t 5000 = per packet timeout at 5000 ms
+
+#fping_opts="-R -b 56 -i 1 -r 0 -t 5000"
diff --git a/collectors/fping.plugin/fping.plugin b/collectors/fping.plugin/fping.plugin
new file mode 100644
index 000000000..cf8f17e9a
--- /dev/null
+++ b/collectors/fping.plugin/fping.plugin
@@ -0,0 +1,200 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+# netdata
+# real-time performance and health monitoring, done right!
+# (C) 2017 Costa Tsaousis <costa@tsaousis.gr>
+# GPL v3+
+#
+# This plugin requires a latest version of fping.
+# You can compile it from source, by running me with option: install
+
+export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/sbin"
+export LC_ALL=C
+
+if [ "${1}" = "install" ]
+ then
+ [ "${UID}" != 0 ] && echo >&2 "Please run me as root. This will install a single binary file: /usr/local/bin/fping." && exit 1
+
+ run() {
+ printf >&2 " > "
+ printf >&2 "%q " "${@}"
+ printf >&2 "\n"
+ "${@}" || exit 1
+ }
+
+ download() {
+ local curl="$(which curl 2>/dev/null || command -v curl 2>/dev/null)"
+ [ ! -z "${curl}" ] && run curl -s -L "${1}" && return 0
+
+ local wget="$(which wget 2>/dev/null || command -v wget 2>/dev/null)"
+ [ ! -z "${wget}" ] && run wget -q -O - "${1}" && return 0
+
+ echo >&2 "Cannot find 'curl' or 'wget' in this system." && exit 1
+ }
+
+ [ ! -d /usr/src ] && run mkdir -p /usr/src
+ [ ! -d /usr/local/bin ] && run mkdir -p /usr/local/bin
+
+ run cd /usr/src
+
+ if [ -d fping-4.0 ]
+ then
+ run rm -rf fping-4.0 || exit 1
+ fi
+
+ download 'https://github.com/schweikert/fping/releases/download/v4.0/fping-4.0.tar.gz' | run tar -zxvpf -
+ [ $? -ne 0 ] && exit 1
+ run cd fping-4.0 || exit 1
+
+ run ./configure --prefix=/usr/local
+ run make clean
+ run make
+ if [ -f /usr/local/bin/fping ]
+ then
+ run mv -f /usr/local/bin/fping /usr/local/bin/fping.old
+ fi
+ run mv src/fping /usr/local/bin/fping
+ run chown root:root /usr/local/bin/fping
+ run chmod 4755 /usr/local/bin/fping
+ echo >&2
+ echo >&2 "All done, you have a compatible fping now at /usr/local/bin/fping."
+ echo >&2
+
+ fping="$(which fping 2>/dev/null || command -v fping 2>/dev/null)"
+ if [ "${fping}" != "/usr/local/bin/fping" ]
+ then
+ echo >&2 "You have another fping installed at: ${fping}."
+ echo >&2 "Please set:"
+ echo >&2
+ echo >&2 " fping=\"/usr/local/bin/fping\""
+ echo >&2
+ echo >&2 "at /etc/netdata/fping.conf"
+ echo >&2
+ fi
+ exit 0
+fi
+
+# -----------------------------------------------------------------------------
+
+PROGRAM_NAME="$(basename "${0}")"
+
+logdate() {
+ date "+%Y-%m-%d %H:%M:%S"
+}
+
+log() {
+ local status="${1}"
+ shift
+
+ echo >&2 "$(logdate): ${PROGRAM_NAME}: ${status}: ${*}"
+
+}
+
+warning() {
+ log WARNING "${@}"
+}
+
+error() {
+ log ERROR "${@}"
+}
+
+info() {
+ log INFO "${@}"
+}
+
+fatal() {
+ log FATAL "${@}"
+ echo "DISABLE"
+ exit 1
+}
+
+debug=0
+debug() {
+ [ $debug -eq 1 ] && log DEBUG "${@}"
+}
+
+# -----------------------------------------------------------------------------
+
+# store in ${plugin} the name we run under
+# this allows us to copy/link fping.plugin under a different name
+# to have multiple fping plugins running with different settings
+plugin="${PROGRAM_NAME/.plugin/}"
+
+
+# -----------------------------------------------------------------------------
+
+# the frequency to send info to netdata
+# passed by netdata as the first parameter
+update_every="${1-1}"
+
+# the netdata configuration directory
+# passed by netdata as an environment variable
+[ -z "${NETDATA_USER_CONFIG_DIR}" ] && NETDATA_USER_CONFIG_DIR="/usr/local/etc/netdata"
+[ -z "${NETDATA_STOCK_CONFIG_DIR}" ] && NETDATA_STOCK_CONFIG_DIR="/usr/local/lib/netdata/conf.d"
+
+# -----------------------------------------------------------------------------
+# configuration options
+# can be overwritten at /etc/netdata/fping.conf
+
+# the fping binary to use
+# we need one that can output netdata friendly info (supporting: -N)
+# if you have multiple versions, put here the full filename of the right one
+fping="$( which fping 2>/dev/null || command -v fping 2>/dev/null )"
+
+# a space separated list of hosts to fping
+# we suggest to put names here and the IPs of these names in /etc/hosts
+hosts=""
+
+# the time in milliseconds (1 sec = 1000 ms)
+# to ping the hosts - by default 5 pings per host per iteration
+ping_every="$((update_every * 1000 / 5))"
+
+# fping options
+fping_opts="-R -b 56 -i 1 -r 0 -t 5000"
+
+# -----------------------------------------------------------------------------
+# load the configuration files
+
+for CONFIG in "${NETDATA_STOCK_CONFIG_DIR}/${plugin}.conf" "${NETDATA_USER_CONFIG_DIR}/${plugin}.conf"
+do
+ if [ -f "${CONFIG}" ]
+ then
+ info "Loading config file '${CONFIG}'..."
+ source "${CONFIG}"
+ [ $? -ne 0 ] && error "Failed to load config file '${CONFIG}'."
+ else
+ warning "Cannot find file '${CONFIG}'."
+ fi
+done
+
+if [ -z "${hosts}" ]
+then
+ fatal "no hosts configured - nothing to do."
+fi
+
+if [ -z "${fping}" ]
+then
+ fatal "fping command is not found. Please set its full path in '${NETDATA_USER_CONFIG_DIR}/${plugin}.conf'"
+fi
+
+if [ ! -x "${fping}" ]
+then
+ fatal "fping command '${fping}' is not executable - cannot proceed."
+fi
+
+if [ ${ping_every} -lt 20 ]
+ then
+ warning "ping every was set to ${ping_every} but 20 is the minimum for non-root users. Setting it to 20 ms."
+ ping_every=20
+fi
+
+# the fping options we will use
+options=( -N -l -Q ${update_every} -p ${ping_every} ${fping_opts} ${hosts} )
+
+# execute fping
+info "starting fping: ${fping} ${options[*]}"
+exec "${fping}" "${options[@]}"
+
+# if we cannot execute fping, stop
+fatal "command '${fping} ${options[*]}' failed to be executed (returned code $?)."
diff --git a/collectors/fping.plugin/fping.plugin.in b/collectors/fping.plugin/fping.plugin.in
new file mode 100755
index 000000000..2c03e418e
--- /dev/null
+++ b/collectors/fping.plugin/fping.plugin.in
@@ -0,0 +1,200 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+# netdata
+# real-time performance and health monitoring, done right!
+# (C) 2017 Costa Tsaousis <costa@tsaousis.gr>
+# GPL v3+
+#
+# This plugin requires a latest version of fping.
+# You can compile it from source, by running me with option: install
+
+export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/sbin"
+export LC_ALL=C
+
+if [ "${1}" = "install" ]
+ then
+ [ "${UID}" != 0 ] && echo >&2 "Please run me as root. This will install a single binary file: /usr/local/bin/fping." && exit 1
+
+ run() {
+ printf >&2 " > "
+ printf >&2 "%q " "${@}"
+ printf >&2 "\n"
+ "${@}" || exit 1
+ }
+
+ download() {
+ local curl="$(which curl 2>/dev/null || command -v curl 2>/dev/null)"
+ [ ! -z "${curl}" ] && run curl -s -L "${1}" && return 0
+
+ local wget="$(which wget 2>/dev/null || command -v wget 2>/dev/null)"
+ [ ! -z "${wget}" ] && run wget -q -O - "${1}" && return 0
+
+ echo >&2 "Cannot find 'curl' or 'wget' in this system." && exit 1
+ }
+
+ [ ! -d /usr/src ] && run mkdir -p /usr/src
+ [ ! -d /usr/local/bin ] && run mkdir -p /usr/local/bin
+
+ run cd /usr/src
+
+ if [ -d fping-4.0 ]
+ then
+ run rm -rf fping-4.0 || exit 1
+ fi
+
+ download 'https://github.com/schweikert/fping/releases/download/v4.0/fping-4.0.tar.gz' | run tar -zxvpf -
+ [ $? -ne 0 ] && exit 1
+ run cd fping-4.0 || exit 1
+
+ run ./configure --prefix=/usr/local
+ run make clean
+ run make
+ if [ -f /usr/local/bin/fping ]
+ then
+ run mv -f /usr/local/bin/fping /usr/local/bin/fping.old
+ fi
+ run mv src/fping /usr/local/bin/fping
+ run chown root:root /usr/local/bin/fping
+ run chmod 4755 /usr/local/bin/fping
+ echo >&2
+ echo >&2 "All done, you have a compatible fping now at /usr/local/bin/fping."
+ echo >&2
+
+ fping="$(which fping 2>/dev/null || command -v fping 2>/dev/null)"
+ if [ "${fping}" != "/usr/local/bin/fping" ]
+ then
+ echo >&2 "You have another fping installed at: ${fping}."
+ echo >&2 "Please set:"
+ echo >&2
+ echo >&2 " fping=\"/usr/local/bin/fping\""
+ echo >&2
+ echo >&2 "at /etc/netdata/fping.conf"
+ echo >&2
+ fi
+ exit 0
+fi
+
+# -----------------------------------------------------------------------------
+
+PROGRAM_NAME="$(basename "${0}")"
+
+logdate() {
+ date "+%Y-%m-%d %H:%M:%S"
+}
+
+log() {
+ local status="${1}"
+ shift
+
+ echo >&2 "$(logdate): ${PROGRAM_NAME}: ${status}: ${*}"
+
+}
+
+warning() {
+ log WARNING "${@}"
+}
+
+error() {
+ log ERROR "${@}"
+}
+
+info() {
+ log INFO "${@}"
+}
+
+fatal() {
+ log FATAL "${@}"
+ echo "DISABLE"
+ exit 1
+}
+
+debug=0
+debug() {
+ [ $debug -eq 1 ] && log DEBUG "${@}"
+}
+
+# -----------------------------------------------------------------------------
+
+# store in ${plugin} the name we run under
+# this allows us to copy/link fping.plugin under a different name
+# to have multiple fping plugins running with different settings
+plugin="${PROGRAM_NAME/.plugin/}"
+
+
+# -----------------------------------------------------------------------------
+
+# the frequency to send info to netdata
+# passed by netdata as the first parameter
+update_every="${1-1}"
+
+# the netdata configuration directory
+# passed by netdata as an environment variable
+[ -z "${NETDATA_USER_CONFIG_DIR}" ] && NETDATA_USER_CONFIG_DIR="@configdir_POST@"
+[ -z "${NETDATA_STOCK_CONFIG_DIR}" ] && NETDATA_STOCK_CONFIG_DIR="@libconfigdir_POST@"
+
+# -----------------------------------------------------------------------------
+# configuration options
+# can be overwritten at /etc/netdata/fping.conf
+
+# the fping binary to use
+# we need one that can output netdata friendly info (supporting: -N)
+# if you have multiple versions, put here the full filename of the right one
+fping="$( which fping 2>/dev/null || command -v fping 2>/dev/null )"
+
+# a space separated list of hosts to fping
+# we suggest to put names here and the IPs of these names in /etc/hosts
+hosts=""
+
+# the time in milliseconds (1 sec = 1000 ms)
+# to ping the hosts - by default 5 pings per host per iteration
+ping_every="$((update_every * 1000 / 5))"
+
+# fping options
+fping_opts="-R -b 56 -i 1 -r 0 -t 5000"
+
+# -----------------------------------------------------------------------------
+# load the configuration files
+
+for CONFIG in "${NETDATA_STOCK_CONFIG_DIR}/${plugin}.conf" "${NETDATA_USER_CONFIG_DIR}/${plugin}.conf"
+do
+ if [ -f "${CONFIG}" ]
+ then
+ info "Loading config file '${CONFIG}'..."
+ source "${CONFIG}"
+ [ $? -ne 0 ] && error "Failed to load config file '${CONFIG}'."
+ else
+ warning "Cannot find file '${CONFIG}'."
+ fi
+done
+
+if [ -z "${hosts}" ]
+then
+ fatal "no hosts configured - nothing to do."
+fi
+
+if [ -z "${fping}" ]
+then
+ fatal "fping command is not found. Please set its full path in '${NETDATA_USER_CONFIG_DIR}/${plugin}.conf'"
+fi
+
+if [ ! -x "${fping}" ]
+then
+ fatal "fping command '${fping}' is not executable - cannot proceed."
+fi
+
+if [ ${ping_every} -lt 20 ]
+ then
+ warning "ping every was set to ${ping_every} but 20 is the minimum for non-root users. Setting it to 20 ms."
+ ping_every=20
+fi
+
+# the fping options we will use
+options=( -N -l -Q ${update_every} -p ${ping_every} ${fping_opts} ${hosts} )
+
+# execute fping
+info "starting fping: ${fping} ${options[*]}"
+exec "${fping}" "${options[@]}"
+
+# if we cannot execute fping, stop
+fatal "command '${fping} ${options[*]}' failed to be executed (returned code $?)."