Imported Upstream version 1.0.0upstream/1.0.0

1 files changed, 250 insertions, 0 deletions

diff --git a/charts.d/apache.chart.sh b/charts.d/apache.chart.sh
new file mode 100755
index 00000000..efa559dd
--- /dev/null
+++ b/charts.d/apache.chart.sh
@@ -0,0 +1,250 @@
+#!/bin/sh
+
+# the URL to download apache status info
+apache_url="http://127.0.0.1:80/server-status?auto"
+
+# _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=$[i + 1]
+	done
+
+	# we will not check of the Conns*
+	# keys, since these are apache 2.4 specific
+	if [ -z "${apache_key_accesses}" \
+		-o -z "${apache_key_kbytes}" \
+		-o -z "${apache_key_reqpersec}" \
+		-o -z "${apache_key_bytespersec}" \
+		-o -z "${apache_key_bytesperreq}" \
+		-o -z "${apache_key_busyworkers}" \
+		-o -z "${apache_key_idleworkers}" \
+		-o -z "${apache_key_scoreboard}" \
+		]
+		then
+		echo >&2 "apache: Invalid response or missing keys from apache server: ${*}"
+		return 1
+	fi
+
+	if [ ! -z "${apache_key_connstotal}" \
+		-a ! -z "${apache_key_connsasyncwriting}" \
+		-a ! -z "${apache_key_connsasynckeepalive}" \
+		-a ! -z "${apache_key_connsasyncclosing}" \
+		]
+		then
+		apache_has_conns=1
+	fi
+
+	return 0
+}
+
+apache_get() {
+	local oIFS="${IFS}" ret
+	IFS=$':\n' apache_response=($(curl -s "${apache_url}"))
+	ret=$?
+	IFS="${oIFS}"
+
+	[ $ret -ne 0 -o "${#apache_response[@]}" -eq 0 ] && return 1
+
+	# the last line on the apache output is "Scoreboard"
+	# we use this label to detect that the output has a new word count
+	if [ ${apache_keys_detected} -eq 0 -o "${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 "${apache_accesses}" \
+		-o -z "${apache_kbytes}" \
+		-o -z "${apache_reqpersec}" \
+		-o -z "${apache_bytespersec}" \
+		-o -z "${apache_bytesperreq}" \
+		-o -z "${apache_busyworkers}" \
+		-o -z "${apache_idleworkers}" \
+		]
+		then
+		echo >&2 "apache: 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
+	if [ $? -ne 0 ]
+		then
+		echo >&2 "apache: cannot find stub_status on URL '${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.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.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.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.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.requests '' "apache Requests" "requests/s" requests apache.requests line $[apache_priority + 1] $apache_update_every
+DIMENSION requests '' incremental 1 1
+CHART apache.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.connections '' "apache Connections" "connections" connections apache.connections line $[apache_priority + 2] $apache_update_every
+DIMENSION connections '' absolute 1 1
+CHART apache.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 continiously, to collect the values
+apache_update() {
+	local reqs net
+	# 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.requests $1
+SET requests = $[apache_accesses]
+END
+BEGIN apache.net $1
+SET sent = $[apache_kbytes]
+END
+BEGIN apache.reqpersec $1
+SET requests = $[apache_reqpersec]
+END
+BEGIN apache.bytespersec $1
+SET sent = $[apache_bytespersec]
+END
+BEGIN apache.bytesperreq $1
+SET size = $[apache_bytesperreq]
+END
+BEGIN apache.workers $1
+SET idle = $[apache_idleworkers]
+SET busy = $[apache_busyworkers]
+END
+VALUESEOF
+
+	if [ ${apache_has_conns} -eq 1 ]
+		then
+	cat <<VALUESEOF2
+BEGIN apache.connections $1
+SET connections = $[apache_connstotal]
+END
+BEGIN apache.conns_async $1
+SET keepalive = $[apache_connsasynckeepalive]
+SET closing = $[apache_connsasyncwriting]
+SET writing = $[apache_connsasyncwriting]
+END
+VALUESEOF2
+	fi
+
+	return 0
+}