3 # the URL to download apache status info
4 apache_url="http://127.0.0.1:80/server-status?auto"
6 # _update_every is a special variable - it holds the number of seconds
7 # between the calls of the _update() function
10 # convert apache floating point values
11 # to integer using this multiplier
12 # this only affects precision - the values
13 # will be in the proper units
14 apache_decimal_detail=1000000
16 declare -a apache_response=()
25 apache_connsasyncwriting=0
26 apache_connsasynckeepalive=0
27 apache_connsasyncclosing=0
29 apache_keys_detected=0
34 apache_key_bytespersec=
35 apache_key_bytesperreq=
36 apache_key_busyworkers=
37 apache_key_idleworkers=
38 apache_key_connstotal=
39 apache_key_connsasyncwriting=
40 apache_key_connsasynckeepalive=
41 apache_key_connsasyncclosing=
47 'Accesses:') apache_key_accesses=$[i + 1] ;;
48 'kBytes:') apache_key_kbytes=$[i + 1] ;;
49 'ReqPerSec:') apache_key_reqpersec=$[i + 1] ;;
50 'BytesPerSec:') apache_key_bytespersec=$[i + 1] ;;
51 'BytesPerReq:') apache_key_bytesperreq=$[i + 1] ;;
52 'BusyWorkers:') apache_key_busyworkers=$[i + 1] ;;
53 'IdleWorkers:') apache_key_idleworkers=$[i + 1] ;;
54 'ConnsTotal:') apache_key_connstotal=$[i + 1] ;;
55 'ConnsAsyncWriting:') apache_key_connsasyncwriting=$[i + 1] ;;
56 'ConnsAsyncKeepAlive:') apache_key_connsasynckeepalive=$[i + 1] ;;
57 'ConnsAsyncClosing:') apache_key_connsasyncclosing=$[i + 1] ;;
63 # we will not check of the Conns*
64 # keys, since these are apache 2.4 specific
65 if [ -z "${apache_key_accesses}" \
66 -o -z "${apache_key_kbytes}" \
67 -o -z "${apache_key_reqpersec}" \
68 -o -z "${apache_key_bytespersec}" \
69 -o -z "${apache_key_bytesperreq}" \
70 -o -z "${apache_key_busyworkers}" \
71 -o -z "${apache_key_idleworkers}" \
74 echo >&2 "apache: Invalid response or missing keys from apache server: ${*}"
78 if [ ! -z "${apache_key_connstotal}" \
79 -a ! -z "${apache_key_connsasyncwriting}" \
80 -a ! -z "${apache_key_connsasynckeepalive}" \
81 -a ! -z "${apache_key_connsasyncclosing}" \
91 apache_response=($(curl -s "${apache_url}"))
92 [ $? -ne 0 -o "${#apache_response[@]}" -eq 0 ] && return 1
94 if [ ${apache_keys_detected} -eq 0 ]
96 apache_detect "${apache_response[@]}" || return 1
97 apache_keys_detected=1
100 apache_accesses="${apache_response[${apache_key_accesses}]}"
101 apache_kbytes="${apache_response[${apache_key_kbytes}]}"
103 float2int "${apache_response[${apache_key_reqpersec}]}" ${apache_decimal_detail}
104 apache_reqpersec=${FLOAT2INT_RESULT}
106 float2int "${apache_response[${apache_key_bytespersec}]}" ${apache_decimal_detail}
107 apache_bytespersec=${FLOAT2INT_RESULT}
109 float2int "${apache_response[${apache_key_bytesperreq}]}" ${apache_decimal_detail}
110 apache_bytesperreq=${FLOAT2INT_RESULT}
112 apache_busyworkers="${apache_response[${apache_key_busyworkers}]}"
113 apache_idleworkers="${apache_response[${apache_key_idleworkers}]}"
115 if [ -z "${apache_accesses}" \
116 -o -z "${apache_kbytes}" \
117 -o -z "${apache_reqpersec}" \
118 -o -z "${apache_bytespersec}" \
119 -o -z "${apache_bytesperreq}" \
120 -o -z "${apache_busyworkers}" \
121 -o -z "${apache_idleworkers}" \
124 echo >&2 "apache: empty values got from apache server: ${apache_response[*]}"
128 apache_connstotal="${apache_response[${apache_key_connstotal}]}"
129 apache_connsasyncwriting="${apache_response[${apache_key_connsasyncwriting}]}"
130 apache_connsasynckeepalive="${apache_response[${apache_key_connsasynckeepalive}]}"
131 apache_connsasyncclosing="${apache_response[${apache_key_connsasyncclosing}]}"
136 # _check is called once, to find out if this chart should be enabled or not
142 echo >&2 "apache: cannot find stub_status on URL '${apache_url}'. Please set apache_url='http://apache.server:80/server-status?auto' in $confd/apache.conf"
146 # this should return:
147 # - 0 to enable the chart
148 # - 1 to disable the chart
153 # _create is called once, to create the charts
156 CHART apache.bytesperreq '' "apache Lifetime Avg. Response Size" "bytes/request" apache apache area 16008 $apache_update_every
157 DIMENSION size '' absolute 1 ${apache_decimal_detail}
158 CHART apache.workers '' "apache Workers" "workers" apache apache stacked 16005 $apache_update_every
159 DIMENSION idle '' absolute 1 1
160 DIMENSION busy '' absolute 1 1
161 CHART apache.reqpersec '' "apache Lifetime Avg. Requests/s" "requests/s" apache apache line 16006 $apache_update_every
162 DIMENSION requests '' absolute 1 ${apache_decimal_detail}
163 CHART apache.bytespersec '' "apache Lifetime Avg. Bandwidth/s" "kilobits/s" apache apache area 16007 $apache_update_every
164 DIMENSION sent '' absolute 8 $[apache_decimal_detail * 1000]
165 CHART apache.requests '' "apache Requests" "requests/s" apache apache line 16001 $apache_update_every
166 DIMENSION requests '' incremental 1 1
167 CHART apache.net '' "apache Bandwidth" "kilobits/s" apache apache area 16003 $apache_update_every
168 DIMENSION sent '' incremental 8 1
171 if [ ${apache_has_conns} -eq 1 ]
174 CHART apache.connections '' "apache Connections" "connections" apache apache line 16002 $apache_update_every
175 DIMENSION connections '' absolute 1 1
176 CHART apache.conns_async '' "apache Async Connections" "connections" apache apache stacked 16004 $apache_update_every
177 DIMENSION keepalive '' absolute 1 1
178 DIMENSION closing '' absolute 1 1
179 DIMENSION writing '' absolute 1 1
186 # _update is called continiously, to collect the values
189 # the first argument to this function is the microseconds since last update
190 # pass this parameter to the BEGIN statement (see bellow).
192 # do all the work to collect / calculate the values
194 # remember: KEEP IT SIMPLE AND SHORT
196 apache_get || return 1
198 # write the result of the work.
200 BEGIN apache.requests $1
201 SET requests = $[apache_accesses]
204 SET sent = $[apache_kbytes]
206 BEGIN apache.reqpersec $1
207 SET requests = $[apache_reqpersec]
209 BEGIN apache.bytespersec $1
210 SET sent = $[apache_bytespersec]
212 BEGIN apache.bytesperreq $1
213 SET size = $[apache_bytesperreq]
215 BEGIN apache.workers $1
216 SET idle = $[apache_idleworkers]
217 SET busy = $[apache_busyworkers]
221 if [ ${apache_has_conns} -eq 1 ]
224 BEGIN apache.connections $1
225 SET connections = $[apache_connstotal]
227 BEGIN apache.conns_async $1
228 SET keepalive = $[apache_connsasynckeepalive]
229 SET closing = $[apache_connsasyncwriting]
230 SET writing = $[apache_connsasyncwriting]