diff options
Diffstat (limited to 'plugins.d/charts.d.plugin')
| -rwxr-xr-x | plugins.d/charts.d.plugin | 713 |
1 files changed, 0 insertions, 713 deletions
diff --git a/plugins.d/charts.d.plugin b/plugins.d/charts.d.plugin deleted file mode 100755 index 9bd03fd47..000000000 --- a/plugins.d/charts.d.plugin +++ /dev/null @@ -1,713 +0,0 @@ -#!/usr/bin/env bash - -# netdata -# real-time performance and health monitoring, done right! -# (C) 2017 Costa Tsaousis <costa@tsaousis.gr> -# GPL v3+ -# -# charts.d.plugin allows easy development of BASH plugins -# -# if you need to run parallel charts.d processes, link this file to a different name -# in the same directory, with a .plugin suffix and netdata will start both of them, -# each will have a different config file and modules configuration directory. -# - -export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin" - -PROGRAM_FILE="$0" -PROGRAM_NAME="$(basename $0)" -PROGRAM_NAME="${PROGRAM_NAME/.plugin}" -MODULE_NAME="main" - -# ----------------------------------------------------------------------------- -# create temp dir - -debug=0 -TMP_DIR= -chartsd_cleanup() { - trap '' EXIT QUIT HUP INT TERM - - if [ ! -z "$TMP_DIR" -a -d "$TMP_DIR" ] - then - [ $debug -eq 1 ] && echo >&2 "$PROGRAM_NAME: cleaning up temporary directory $TMP_DIR ..." - rm -rf "$TMP_DIR" - fi - exit 0 -} -trap chartsd_cleanup EXIT QUIT HUP INT TERM - -if [ $UID = "0" ] -then - TMP_DIR="$( mktemp -d /var/run/netdata-${PROGRAM_NAME}-XXXXXXXXXX )" -else - TMP_DIR="$( mktemp -d /tmp/.netdata-${PROGRAM_NAME}-XXXXXXXXXX )" -fi - -logdate() { - date "+%Y-%m-%d %H:%M:%S" -} - -log() { - local status="${1}" - shift - - echo >&2 "$(logdate): ${PROGRAM_NAME}: ${status}: ${MODULE_NAME}: ${*}" - -} - -warning() { - log WARNING "${@}" -} - -error() { - log ERROR "${@}" -} - -info() { - log INFO "${@}" -} - -fatal() { - log FATAL "${@}" - echo "DISABLE" - exit 1 -} - -debug() { - [ $debug -eq 1 ] && log DEBUG "${@}" -} - -# ----------------------------------------------------------------------------- -# check a few commands - -require_cmd() { - local x=$(which "${1}" 2>/dev/null || command -v "${1}" 2>/dev/null) - if [ -z "${x}" -o ! -x "${x}" ] - then - warning "command '${1}' is not found in ${PATH}." - eval "${1^^}_CMD=\"\"" - return 1 - fi - - eval "${1^^}_CMD=\"${x}\"" - return 0 -} - -require_cmd date || exit 1 -require_cmd sed || exit 1 -require_cmd basename || exit 1 -require_cmd dirname || exit 1 -require_cmd cat || exit 1 -require_cmd grep || exit 1 -require_cmd egrep || exit 1 -require_cmd mktemp || exit 1 -require_cmd awk || exit 1 -require_cmd timeout || exit 1 -require_cmd curl || exit 1 - -# ----------------------------------------------------------------------------- - -[ $(( ${BASH_VERSINFO[0]} )) -lt 4 ] && fatal "BASH version 4 or later is required, but found version: ${BASH_VERSION}. Please upgrade." - -info "started from '$PROGRAM_FILE' with options: $*" - -# ----------------------------------------------------------------------------- -# internal defaults -# netdata exposes a few environment variables for us - -[ -z "${NETDATA_PLUGINS_DIR}" ] && NETDATA_PLUGINS_DIR="$(dirname "${0}")" -[ -z "${NETDATA_CONFIG_DIR}" ] && NETDATA_CONFIG_DIR="$(dirname "${0}")/../../../../etc/netdata" - -pluginsd="${NETDATA_PLUGINS_DIR}" -confd="${NETDATA_CONFIG_DIR}" -chartsd="$pluginsd/../charts.d" - -myconfig="$confd/$PROGRAM_NAME.conf" - -minimum_update_frequency="${NETDATA_UPDATE_EVERY-1}" -update_every=${minimum_update_frequency} # this will be overwritten by the command line - -# work around for non BASH shells -charts_create="_create" -charts_update="_update" -charts_check="_check" -charts_undescore="_" - -# when making iterations, charts.d can loop more frequently -# to prevent plugins missing iterations. -# this is a percentage relative to update_every to align its -# iterations. -# The minimum is 10%, the maximum 100%. -# So, if update_every is 1 second and time_divisor is 50, -# charts.d will iterate every 500ms. -# Charts will be called to collect data only if the time -# passed since the last time the collected data is equal or -# above their update_every. -time_divisor=50 - -# number of seconds to run without restart -# after this time, charts.d.plugin will exit -# netdata will restart it -restart_timeout=$((3600 * 4)) - -# check if the charts.d plugins are using global variables -# they should not. -# It does not currently support BASH v4 arrays, so it is -# disabled -dryrunner=0 - -# check for timeout command -check_for_timeout=1 - -# the default enable/disable value for all charts -enable_all_charts="yes" - -# ----------------------------------------------------------------------------- -# parse parameters - -check=0 -chart_only= -while [ ! -z "$1" ] -do - if [ "$1" = "check" ] - then - check=1 - shift - continue - fi - - if [ "$1" = "debug" -o "$1" = "all" ] - then - debug=1 - shift - continue - fi - - if [ -f "$chartsd/$1.chart.sh" ] - then - debug=1 - chart_only="$( echo $1.chart.sh | sed "s/\.chart\.sh$//g" )" - shift - continue - fi - - if [ -f "$chartsd/$1" ] - then - debug=1 - chart_only="$( echo $1 | sed "s/\.chart\.sh$//g" )" - shift - continue - fi - - # number check - n="$1" - x=$(( n )) - if [ "$x" = "$n" ] - then - shift - update_every=$x - [ $update_every -lt $minimum_update_frequency ] && update_every=$minimum_update_frequency - continue - fi - - fatal "Cannot understand parameter $1. Aborting." -done - - -# ----------------------------------------------------------------------------- -# loop control - -# default sleep function -LOOPSLEEPMS_HIGHRES=0 -now_ms= -current_time_ms_default() { - now_ms="$(date +'%s')000" -} -current_time_ms="current_time_ms_default" -current_time_ms_accuracy=1 -mysleep="sleep" - -# if found and included, this file overwrites loopsleepms() -# and current_time_ms() with a high resolution timer function -# for precise looping. -. "$pluginsd/loopsleepms.sh.inc" - -# ----------------------------------------------------------------------------- -# load my configuration - -if [ -f "$myconfig" ] - then - . "$myconfig" - [ $? -ne 0 ] && fatal "cannot load $myconfig" - - time_divisor=$((time_divisor)) - [ $time_divisor -lt 10 ] && time_divisor=10 - [ $time_divisor -gt 100 ] && time_divisor=100 -else - info "configuration file '$myconfig' not found. Using defaults." -fi - -# we check for the timeout command, after we load our -# configuration, so that the user may overwrite the -# timeout command we use, providing a function that -# can emulate the timeout command we need: -# > timeout SECONDS command ... -if [ $check_for_timeout -eq 1 ] - then - require_cmd timeout || exit 1 -fi - -# ----------------------------------------------------------------------------- -# internal checks - -# netdata passes the requested update frequency as the first argument -update_every=$(( update_every + 1 - 1)) # makes sure it is a number -test $update_every -eq 0 && update_every=1 # if it is zero, make it 1 - -# check the charts.d directory -[ ! -d "$chartsd" ] && fatal "cannot find charts directory '$chartsd'" - -# ----------------------------------------------------------------------------- -# library functions - -fixid() { - echo "$*" |\ - tr -c "[A-Z][a-z][0-9]" "_" |\ - sed -e "s|^_\+||g" -e "s|_\+$||g" -e "s|_\+|_|g" |\ - tr "[A-Z]" "[a-z]" -} - -run() { - local ret pid="${BASHPID}" t - - if [ "z${1}" = "z-t" -a "${2}" != "0" ] - then - t="${2}" - shift 2 - timeout ${t} "${@}" 2>"${TMP_DIR}/run.${pid}" - ret=$? - else - "${@}" 2>"${TMP_DIR}/run.${pid}" - ret=$? - fi - - if [ ${ret} -ne 0 ] - then - { - printf "$(logdate): ${PROGRAM_NAME}: ${status}: ${MODULE_NAME}: command '" - printf "%q " "${@}" - printf "' failed:\n --- BEGIN TRACE ---\n" - cat "${TMP_DIR}/run.${pid}" - printf " --- END TRACE ---\n" - } >&2 - fi - rm "${TMP_DIR}/run.${pid}" - - return ${ret} -} - -# convert any floating point number -# to integer, give a multiplier -# the result is stored in ${FLOAT2INT_RESULT} -# so that no fork is necessary -# the multiplier must be a power of 10 -float2int() { - local f m="$2" a b l v=($1) - f=${v[0]} - - # the length of the multiplier - 1 - l=$(( ${#m} - 1 )) - - # check if the number is in scientific notation - if [[ ${f} =~ ^[[:space:]]*(-)?[0-9.]+(e|E)(\+|-)[0-9]+ ]] - then - # convert it to decimal - # unfortunately, this fork cannot be avoided - # if you know of a way to avoid it, please let me know - f=$(printf "%0.${l}f" ${f}) - fi - - # split the floating point number - # in integer (a) and decimal (b) - a=${f/.*/} - b=${f/*./} - - # if the integer part is missing - # set it to zero - [ -z "${a}" ] && a="0" - - # strip leading zeros from the integer part - # base 10 convertion - a=$((10#$a)) - - # check the length of the decimal part - # against the length of the multiplier - if [ ${#b} -gt ${l} ] - then - # too many digits - take the most significant - b=${b:0:${l}} - - elif [ ${#b} -lt ${l} ] - then - # too few digits - pad with zero on the right - local z="00000000000000000000000" r=$((l - ${#b})) - b="${b}${z:0:${r}}" - fi - - # strip leading zeros from the decimal part - # base 10 convertion - b=$((10#$b)) - - # store the result - FLOAT2INT_RESULT=$(( (a * m) + b )) -} - - -# ----------------------------------------------------------------------------- -# charts check functions - -all_charts() { - cd "$chartsd" - [ $? -ne 0 ] && error "cannot cd to $chartsd" && return 1 - - ls *.chart.sh | sed "s/\.chart\.sh$//g" -} - -declare -A charts_enable_keyword=( - ['apache']="force" - ['cpu_apps']="force" - ['cpufreq']="force" - ['example']="force" - ['exim']="force" - ['hddtemp']="force" - ['load_average']="force" - ['mem_apps']="force" - ['mysql']="force" - ['nginx']="force" - ['phpfpm']="force" - ['postfix']="force" - ['sensors']="force" - ['squid']="force" - ['tomcat']="force" - ) - -all_enabled_charts() { - local charts= enabled= required= - - # find all enabled charts - - for chart in $( all_charts ) - do - MODULE_NAME="${chart}" - - eval "enabled=\$$chart" - if [ -z "${enabled}" ] - then - enabled="${enable_all_charts}" - fi - - required="${charts_enable_keyword[${chart}]}" - [ -z "${required}" ] && required="yes" - - if [ ! "${enabled}" = "${required}" ] - then - info "is disabled. Add a line with $chart=$required in $myconfig to enable it (or remove the line that disables it)." - else - debug "is enabled for auto-detection." - local charts="$charts $chart" - fi - done - MODULE_NAME="main" - - local charts2= - for chart in $charts - do - MODULE_NAME="${chart}" - - # check the enabled charts - local check="$( cat "$chartsd/$chart.chart.sh" | sed "s/^ \+//g" | grep "^$chart$charts_check()" )" - if [ -z "$check" ] - then - error "module '$chart' does not seem to have a $chart$charts_check() function. Disabling it." - continue - fi - - local create="$( cat "$chartsd/$chart.chart.sh" | sed "s/^ \+//g" | grep "^$chart$charts_create()" )" - if [ -z "$create" ] - then - error "module '$chart' does not seem to have a $chart$charts_create() function. Disabling it." - continue - fi - - local update="$( cat "$chartsd/$chart.chart.sh" | sed "s/^ \+//g" | grep "^$chart$charts_update()" )" - if [ -z "$update" ] - then - error "module '$chart' does not seem to have a $chart$charts_update() function. Disabling it." - continue - fi - - # check its config - #if [ -f "$confd/$chart.conf" ] - #then - # if [ ! -z "$( cat "$confd/$chart.conf" | sed "s/^ \+//g" | grep -v "^$" | grep -v "^#" | grep -v "^$chart$charts_undescore" )" ] - # then - # error "module's $chart config $confd/$chart.conf should only have lines starting with $chart$charts_undescore . Disabling it." - # continue - # fi - #fi - - #if [ $dryrunner -eq 1 ] - # then - # "$pluginsd/charts.d.dryrun-helper.sh" "$chart" "$chartsd/$chart.chart.sh" "$confd/$chart.conf" >/dev/null - # if [ $? -ne 0 ] - # then - # error "module's $chart did not pass the dry run check. This means it uses global variables not starting with $chart. Disabling it." - # continue - # fi - #fi - - local charts2="$charts2 $chart" - done - MODULE_NAME="main" - - echo $charts2 - debug "enabled charts: $charts2" -} - -# ----------------------------------------------------------------------------- -# load the charts - -suffix_retries="_retries" -suffix_update_every="_update_every" -active_charts= -for chart in $( all_enabled_charts ) -do - MODULE_NAME="${chart}" - - debug "loading module: '$chartsd/$chart.chart.sh'" - - . "$chartsd/$chart.chart.sh" - - if [ -f "$confd/$PROGRAM_NAME/$chart.conf" ] - then - debug "loading module configuration: '$confd/$PROGRAM_NAME/$chart.conf'" - . "$confd/$PROGRAM_NAME/$chart.conf" - elif [ -f "$confd/$chart.conf" ] - then - debug "loading module configuration: '$confd/$chart.conf'" - . "$confd/$chart.conf" - else - warning "configuration file '$confd/$PROGRAM_NAME/$chart.conf' not found. Using defaults." - fi - - eval "dt=\$$chart$suffix_update_every" - dt=$(( dt + 1 - 1 )) # make sure it is a number - if [ $dt -lt $update_every ] - then - eval "$chart$suffix_update_every=$update_every" - fi - - $chart$charts_check - if [ $? -eq 0 ] - then - debug "module '$chart' activated" - active_charts="$active_charts $chart" - else - error "module's '$chart' check() function reports failure." - fi -done -MODULE_NAME="main" -debug "activated modules: $active_charts" - - -# ----------------------------------------------------------------------------- -# check overwrites - -# enable work time reporting -debug_time= -test $debug -eq 1 && debug_time=tellwork - -# if we only need a specific chart, remove all the others -if [ ! -z "${chart_only}" ] -then - debug "requested to run only for: '${chart_only}'" - check_charts= - for chart in $active_charts - do - if [ "$chart" = "$chart_only" ] - then - check_charts="$chart" - break - fi - done - active_charts="$check_charts" -fi -debug "activated charts: $active_charts" - -# stop if we just need a pre-check -if [ $check -eq 1 ] -then - info "CHECK RESULT" - info "Will run the charts: $active_charts" - exit 0 -fi - -# ----------------------------------------------------------------------------- - -cd "${TMP_DIR}" || exit 1 - -# ----------------------------------------------------------------------------- -# create charts - -run_charts= -for chart in $active_charts -do - MODULE_NAME="${chart}" - - debug "calling '$chart$charts_create()'..." - $chart$charts_create - if [ $? -eq 0 ] - then - run_charts="$run_charts $chart" - debug "'$chart' initialized." - else - error "module's '$chart' function '$chart$charts_create()' reports failure." - fi -done -MODULE_NAME="main" -debug "run_charts='$run_charts'" - - -# ----------------------------------------------------------------------------- -# update dimensions - -[ -z "$run_charts" ] && fatal "No charts to collect data from." - -declare -A charts_last_update=() charts_update_every=() charts_retries=() charts_next_update=() charts_run_counter=() charts_serial_failures=() -global_update() { - local exit_at \ - c=0 dt ret last_ms exec_start_ms exec_end_ms \ - chart now_charts=() next_charts=($run_charts) \ - next_ms x seconds millis - - # return the current time in ms in $now_ms - ${current_time_ms} - - exit_at=$(( now_ms + (restart_timeout * 1000) )) - - for chart in $run_charts - do - eval "charts_update_every[$chart]=\$$chart$suffix_update_every" - test -z "${charts_update_every[$chart]}" && charts_update_every[$chart]=$update_every - - eval "charts_retries[$chart]=\$$chart$suffix_retries" - test -z "${charts_retries[$chart]}" && charts_retries[$chart]=10 - - charts_last_update[$chart]=$((now_ms - (now_ms % (charts_update_every[$chart] * 1000) ) )) - charts_next_update[$chart]=$(( charts_last_update[$chart] + (charts_update_every[$chart] * 1000) )) - charts_run_counter[$chart]=0 - charts_serial_failures[$chart]=0 - - echo "CHART netdata.plugin_chartsd_$chart '' 'Execution time for $chart plugin' 'milliseconds / run' charts.d netdata.plugin_charts area 145000 ${charts_update_every[$chart]}" - echo "DIMENSION run_time 'run time' absolute 1 1" - done - - # the main loop - while [ "${#next_charts[@]}" -gt 0 ] - do - c=$((c + 1)) - now_charts=("${next_charts[@]}") - next_charts=() - - # return the current time in ms in $now_ms - ${current_time_ms} - - for chart in "${now_charts[@]}" - do - MODULE_NAME="${chart}" - - if [ ${now_ms} -ge ${charts_next_update[$chart]} ] - then - last_ms=${charts_last_update[$chart]} - dt=$(( (now_ms - last_ms) )) - - charts_last_update[$chart]=${now_ms} - - while [ ${charts_next_update[$chart]} -lt ${now_ms} ] - do - charts_next_update[$chart]=$(( charts_next_update[$chart] + (charts_update_every[$chart] * 1000) )) - done - - # the first call should not give a duration - # so that netdata calibrates to current time - dt=$(( dt * 1000 )) - charts_run_counter[$chart]=$(( charts_run_counter[$chart] + 1 )) - if [ ${charts_run_counter[$chart]} -eq 1 ] - then - dt= - fi - - exec_start_ms=$now_ms - $chart$charts_update $dt - ret=$? - - # return the current time in ms in $now_ms - ${current_time_ms}; exec_end_ms=$now_ms - - echo "BEGIN netdata.plugin_chartsd_$chart $dt" - echo "SET run_time = $(( exec_end_ms - exec_start_ms ))" - echo "END" - - if [ $ret -eq 0 ] - then - charts_serial_failures[$chart]=0 - next_charts+=($chart) - else - charts_serial_failures[$chart]=$(( charts_serial_failures[$chart] + 1 )) - - if [ ${charts_serial_failures[$chart]} -gt ${charts_retries[$chart]} ] - then - error "module's '$chart' update() function reported failure ${charts_serial_failures[$chart]} times. Disabling it." - else - error "module's '$chart' update() function reports failure. Will keep trying for a while." - next_charts+=($chart) - fi - fi - else - next_charts+=($chart) - fi - done - MODULE_NAME="${chart}" - - # wait the time you are required to - next_ms=$((now_ms + (update_every * 1000 * 100) )) - for x in "${charts_next_update[@]}"; do [ ${x} -lt ${next_ms} ] && next_ms=${x}; done - next_ms=$((next_ms - now_ms)) - - if [ ${LOOPSLEEPMS_HIGHRES} -eq 1 -a ${next_ms} -gt 0 ] - then - next_ms=$(( next_ms + current_time_ms_accuracy )) - seconds=$(( next_ms / 1000 )) - millis=$(( next_ms % 1000 )) - if [ ${millis} -lt 10 ] - then - millis="00${millis}" - elif [ ${millis} -lt 100 ] - then - millis="0${millis}" - fi - - debug "sleeping for ${seconds}.${millis} seconds." - ${mysleep} ${seconds}.${millis} - else - debug "sleeping for ${update_every} seconds." - ${mysleep} $update_every - fi - - test ${now_ms} -ge ${exit_at} && exit 0 - done - - fatal "nothing left to do, exiting..." -} - -global_update |