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-rw-r--r--charts.d/tomcat.chart.sh147
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diff --git a/charts.d/tomcat.chart.sh b/charts.d/tomcat.chart.sh
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-# no need for shebang - this file is loaded from charts.d.plugin
-
-# netdata
-# real-time performance and health monitoring, done right!
-# (C) 2016 Costa Tsaousis <costa@tsaousis.gr>
-# GPL v3+
-#
-# Contributed by @jgeromero with PR #277
-
-# Description: Tomcat netdata charts.d plugin
-# Author: Jorge Romero
-
-# the URL to download tomcat status info
-# usually http://localhost:8080/manager/status?XML=true
-tomcat_url=""
-tomcat_curl_opts=""
-
-# set tomcat username/password here
-tomcat_user=""
-tomcat_password=""
-
-# _update_every is a special variable - it holds the number of seconds
-# between the calls of the _update() function
-tomcat_update_every=
-
-tomcat_priority=60000
-
-# convert tomcat floating point values
-# to integer using this multiplier
-# this only affects precision - the values
-# will be in the proper units
-tomcat_decimal_detail=1000000
-
-# used by volume chart to convert bytes to KB
-tomcat_decimal_KB_detail=1000
-
-tomcat_check() {
-
- require_cmd xmlstarlet || return 1
-
-
- # check if url, username, passwords are set
- if [ -z "${tomcat_url}" ]; then
- error "tomcat url is unset or set to the empty string"
- return 1
- fi
- if [ -z "${tomcat_user}" ]; then
- # check backwards compatibility
- if [ -z "${tomcatUser}" ]; then
- error "tomcat user is unset or set to the empty string"
- return 1
- else
- tomcat_user="${tomcatUser}"
- fi
- fi
- if [ -z "${tomcat_password}" ]; then
- # check backwards compatibility
- if [ -z "${tomcatPassword}" ]; then
- error "tomcat password is unset or set to the empty string"
- return 1
- else
- tomcat_password="${tomcatPassword}"
- fi
- fi
-
- # check if we can get to tomcat's status page
- tomcat_get
- if [ $? -ne 0 ]
- then
- error "cannot get to status page on URL '${tomcat_url}'. Please make sure tomcat url, username and password are correct."
- return 1
- fi
-
- # this should return:
- # - 0 to enable the chart
- # - 1 to disable the chart
-
- return 0
-}
-
-tomcat_get() {
- # collect tomcat values
- tomcat_port="$(IFS=/ read -ra a <<< "$tomcat_url"; hostport=${a[2]}; echo "${hostport#*:}")"
- mapfile -t lines < <(run curl -u "$tomcat_user":"$tomcat_password" -Ss ${tomcat_curl_opts} "$tomcat_url" |\
- run xmlstarlet sel \
- -t -m "/status/jvm/memory" -v @free \
- -n -m "/status/connector[@name='\"http-bio-$tomcat_port\"']/threadInfo" -v @currentThreadCount \
- -n -v @currentThreadsBusy \
- -n -m "/status/connector[@name='\"http-bio-$tomcat_port\"']/requestInfo" -v @requestCount \
- -n -v @bytesSent -n -)
-
- tomcat_jvm_freememory="${lines[0]}"
- tomcat_threads="${lines[1]}"
- tomcat_threads_busy="${lines[2]}"
- tomcat_accesses="${lines[3]}"
- tomcat_volume="${lines[4]}"
-
- return 0
-}
-
-# _create is called once, to create the charts
-tomcat_create() {
- cat <<EOF
-CHART tomcat.accesses '' "tomcat requests" "requests/s" statistics tomcat.accesses area $((tomcat_priority + 8)) $tomcat_update_every
-DIMENSION accesses '' incremental
-CHART tomcat.volume '' "tomcat volume" "KB/s" volume tomcat.volume area $((tomcat_priority + 5)) $tomcat_update_every
-DIMENSION volume '' incremental divisor ${tomcat_decimal_KB_detail}
-CHART tomcat.threads '' "tomcat threads" "current threads" statistics tomcat.threads line $((tomcat_priority + 6)) $tomcat_update_every
-DIMENSION current '' absolute 1
-DIMENSION busy '' absolute 1
-CHART tomcat.jvm '' "JVM Free Memory" "MB" statistics tomcat.jvm area $((tomcat_priority + 8)) $tomcat_update_every
-DIMENSION jvm '' absolute 1 ${tomcat_decimal_detail}
-EOF
- return 0
-}
-
-# _update is called continuously, to collect the values
-tomcat_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
-
- tomcat_get || return 1
-
- # write the result of the work.
- cat <<VALUESEOF
-BEGIN tomcat.accesses $1
-SET accesses = $((tomcat_accesses))
-END
-BEGIN tomcat.volume $1
-SET volume = $((tomcat_volume))
-END
-BEGIN tomcat.threads $1
-SET current = $((tomcat_threads))
-SET busy = $((tomcat_threads_busy))
-END
-BEGIN tomcat.jvm $1
-SET jvm = $((tomcat_jvm_freememory))
-END
-VALUESEOF
-
- return 0
-}