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Diffstat (limited to 'collectors/charts.d.plugin/apache/apache.chart.sh')
| -rw-r--r-- | collectors/charts.d.plugin/apache/apache.chart.sh | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/collectors/charts.d.plugin/apache/apache.chart.sh b/collectors/charts.d.plugin/apache/apache.chart.sh new file mode 100644 index 0000000..7d09ee6 --- /dev/null +++ b/collectors/charts.d.plugin/apache/apache.chart.sh @@ -0,0 +1,251 @@ +# shellcheck shell=bash +# no need for shebang - this file is loaded from charts.d.plugin +# SPDX-License-Identifier: GPL-3.0-or-later + +# netdata +# real-time performance and health monitoring, done right! +# (C) 2016 Costa Tsaousis <costa@tsaousis.gr> +# + +# the URL to download apache status info +apache_url="http://127.0.0.1:80/server-status?auto" +apache_curl_opts= + +# _update_every is a special variable - it holds the number of seconds +# between the calls of the _update() function +apache_update_every= + +apache_priority=60000 + +# convert apache floating point values +# to integer using this multiplier +# this only affects precision - the values +# will be in the proper units +apache_decimal_detail=1000000 + +declare -a apache_response=() +apache_accesses=0 +apache_kbytes=0 +apache_reqpersec=0 +apache_bytespersec=0 +apache_bytesperreq=0 +apache_busyworkers=0 +apache_idleworkers=0 +apache_connstotal=0 +apache_connsasyncwriting=0 +apache_connsasynckeepalive=0 +apache_connsasyncclosing=0 + +apache_keys_detected=0 +apache_has_conns=0 +apache_key_accesses= +apache_key_kbytes= +apache_key_reqpersec= +apache_key_bytespersec= +apache_key_bytesperreq= +apache_key_busyworkers= +apache_key_idleworkers= +apache_key_scoreboard= +apache_key_connstotal= +apache_key_connsasyncwriting= +apache_key_connsasynckeepalive= +apache_key_connsasyncclosing= +apache_detect() { + local i=0 + for x in "${@}"; do + case "${x}" in + 'Total Accesses') apache_key_accesses=$((i + 1)) ;; + 'Total kBytes') apache_key_kbytes=$((i + 1)) ;; + 'ReqPerSec') apache_key_reqpersec=$((i + 1)) ;; + 'BytesPerSec') apache_key_bytespersec=$((i + 1)) ;; + 'BytesPerReq') apache_key_bytesperreq=$((i + 1)) ;; + 'BusyWorkers') apache_key_busyworkers=$((i + 1)) ;; + 'IdleWorkers') apache_key_idleworkers=$((i + 1)) ;; + 'ConnsTotal') apache_key_connstotal=$((i + 1)) ;; + 'ConnsAsyncWriting') apache_key_connsasyncwriting=$((i + 1)) ;; + 'ConnsAsyncKeepAlive') apache_key_connsasynckeepalive=$((i + 1)) ;; + 'ConnsAsyncClosing') apache_key_connsasyncclosing=$((i + 1)) ;; + 'Scoreboard') apache_key_scoreboard=$((i)) ;; + esac + + i=$((i + 1)) + done + + # we will not check of the Conns* + # keys, since these are apache 2.4 specific + [ -z "${apache_key_accesses}" ] && error "missing 'Total Accesses' from apache server: ${*}" && return 1 + [ -z "${apache_key_kbytes}" ] && error "missing 'Total kBytes' from apache server: ${*}" && return 1 + [ -z "${apache_key_reqpersec}" ] && error "missing 'ReqPerSec' from apache server: ${*}" && return 1 + [ -z "${apache_key_bytespersec}" ] && error "missing 'BytesPerSec' from apache server: ${*}" && return 1 + [ -z "${apache_key_bytesperreq}" ] && error "missing 'BytesPerReq' from apache server: ${*}" && return 1 + [ -z "${apache_key_busyworkers}" ] && error "missing 'BusyWorkers' from apache server: ${*}" && return 1 + [ -z "${apache_key_idleworkers}" ] && error "missing 'IdleWorkers' from apache server: ${*}" && return 1 + [ -z "${apache_key_scoreboard}" ] && error "missing 'Scoreboard' from apache server: ${*}" && return 1 + + if [ ! -z "${apache_key_connstotal}" ] && + [ ! -z "${apache_key_connsasyncwriting}" ] && + [ ! -z "${apache_key_connsasynckeepalive}" ] && + [ ! -z "${apache_key_connsasyncclosing}" ]; then + apache_has_conns=1 + else + apache_has_conns=0 + fi + + return 0 +} + +apache_get() { + local oIFS="${IFS}" ret + # shellcheck disable=2207 + IFS=$':\n' apache_response=($(run curl -Ss ${apache_curl_opts} "${apache_url}")) + ret=$? + IFS="${oIFS}" + + if [ $ret -ne 0 ] || [ "${#apache_response[@]}" -eq 0 ]; then + return 1 + fi + + # the last line on the apache output is "Scoreboard" + # we use this label to detect that the output has a new word count + if [ ${apache_keys_detected} -eq 0 ] || [ "${apache_response[${apache_key_scoreboard}]}" != "Scoreboard" ]; then + apache_detect "${apache_response[@]}" || return 1 + apache_keys_detected=1 + fi + + apache_accesses="${apache_response[${apache_key_accesses}]}" + apache_kbytes="${apache_response[${apache_key_kbytes}]}" + + float2int "${apache_response[${apache_key_reqpersec}]}" ${apache_decimal_detail} + apache_reqpersec=${FLOAT2INT_RESULT} + + float2int "${apache_response[${apache_key_bytespersec}]}" ${apache_decimal_detail} + apache_bytespersec=${FLOAT2INT_RESULT} + + float2int "${apache_response[${apache_key_bytesperreq}]}" ${apache_decimal_detail} + apache_bytesperreq=${FLOAT2INT_RESULT} + + apache_busyworkers="${apache_response[${apache_key_busyworkers}]}" + apache_idleworkers="${apache_response[${apache_key_idleworkers}]}" + + if + [ -z "${apache_accesses}" ] || + [ -z "${apache_kbytes}" ] || + [ -z "${apache_reqpersec}" ] || + [ -z "${apache_bytespersec}" ] || + [ -z "${apache_bytesperreq}" ] || + [ -z "${apache_busyworkers}" ] + [ -z "${apache_idleworkers}" ] + then + error "empty values got from apache server: ${apache_response[*]}" + return 1 + fi + + if [ ${apache_has_conns} -eq 1 ]; then + apache_connstotal="${apache_response[${apache_key_connstotal}]}" + apache_connsasyncwriting="${apache_response[${apache_key_connsasyncwriting}]}" + apache_connsasynckeepalive="${apache_response[${apache_key_connsasynckeepalive}]}" + apache_connsasyncclosing="${apache_response[${apache_key_connsasyncclosing}]}" + fi + + return 0 +} + +# _check is called once, to find out if this chart should be enabled or not +apache_check() { + + apache_get + # shellcheck disable=2181 + if [ $? -ne 0 ]; then + # shellcheck disable=2154 + error "cannot find stub_status on URL '${apache_url}'. Please set apache_url='http://apache.server:80/server-status?auto' in $confd/apache.conf" + return 1 + fi + + # this should return: + # - 0 to enable the chart + # - 1 to disable the chart + + return 0 +} + +# _create is called once, to create the charts +apache_create() { + cat <<EOF +CHART apache_local.bytesperreq '' "apache Lifetime Avg. Response Size" "bytes/request" statistics apache.bytesperreq area $((apache_priority + 8)) $apache_update_every +DIMENSION size '' absolute 1 ${apache_decimal_detail} +CHART apache_local.workers '' "apache Workers" "workers" workers apache.workers stacked $((apache_priority + 5)) $apache_update_every +DIMENSION idle '' absolute 1 1 +DIMENSION busy '' absolute 1 1 +CHART apache_local.reqpersec '' "apache Lifetime Avg. Requests/s" "requests/s" statistics apache.reqpersec line $((apache_priority + 6)) $apache_update_every +DIMENSION requests '' absolute 1 ${apache_decimal_detail} +CHART apache_local.bytespersec '' "apache Lifetime Avg. Bandwidth/s" "kilobits/s" statistics apache.bytespersec area $((apache_priority + 7)) $apache_update_every +DIMENSION sent '' absolute 8 $((apache_decimal_detail * 1000)) +CHART apache_local.requests '' "apache Requests" "requests/s" requests apache.requests line $((apache_priority + 1)) $apache_update_every +DIMENSION requests '' incremental 1 1 +CHART apache_local.net '' "apache Bandwidth" "kilobits/s" bandwidth apache.net area $((apache_priority + 3)) $apache_update_every +DIMENSION sent '' incremental 8 1 +EOF + + if [ ${apache_has_conns} -eq 1 ]; then + cat <<EOF2 +CHART apache_local.connections '' "apache Connections" "connections" connections apache.connections line $((apache_priority + 2)) $apache_update_every +DIMENSION connections '' absolute 1 1 +CHART apache_local.conns_async '' "apache Async Connections" "connections" connections apache.conns_async stacked $((apache_priority + 4)) $apache_update_every +DIMENSION keepalive '' absolute 1 1 +DIMENSION closing '' absolute 1 1 +DIMENSION writing '' absolute 1 1 +EOF2 + fi + + return 0 +} + +# _update is called continuously, to collect the values +apache_update() { + # the first argument to this function is the microseconds since last update + # pass this parameter to the BEGIN statement (see bellow). + + # do all the work to collect / calculate the values + # for each dimension + # remember: KEEP IT SIMPLE AND SHORT + + apache_get || return 1 + + # write the result of the work. + cat <<VALUESEOF +BEGIN apache_local.requests $1 +SET requests = $((apache_accesses)) +END +BEGIN apache_local.net $1 +SET sent = $((apache_kbytes)) +END +BEGIN apache_local.reqpersec $1 +SET requests = $((apache_reqpersec)) +END +BEGIN apache_local.bytespersec $1 +SET sent = $((apache_bytespersec)) +END +BEGIN apache_local.bytesperreq $1 +SET size = $((apache_bytesperreq)) +END +BEGIN apache_local.workers $1 +SET idle = $((apache_idleworkers)) +SET busy = $((apache_busyworkers)) +END +VALUESEOF + + if [ ${apache_has_conns} -eq 1 ]; then + cat <<VALUESEOF2 +BEGIN apache_local.connections $1 +SET connections = $((apache_connstotal)) +END +BEGIN apache_local.conns_async $1 +SET keepalive = $((apache_connsasynckeepalive)) +SET closing = $((apache_connsasyncclosing)) +SET writing = $((apache_connsasyncwriting)) +END +VALUESEOF2 + fi + + return 0 +} |