3 # Description: Tomcat netdata charts.d plugin
6 # the URL to download tomcat status info
7 tomcat_url="http://<user>:<password>@localhost:8080/manager/status?XML=true"
9 # _update_every is a special variable - it holds the number of seconds
10 # between the calls of the _update() function
15 # convert tomcat floating point values
16 # to integer using this multiplier
17 # this only affects precision - the values
18 # will be in the proper units
19 tomcat_decimal_detail=1000000
21 # used by volume chart to convert bytes to KB
22 tomcat_decimal_KB_detail=1000
29 echo >&2 "tomcat: cannot find stub_status on URL '${tomcat_url}'. Please set tomcat_url='http://<user>:<password>@localhost:8080/manager/status?XML=true'"
34 # - 0 to enable the chart
35 # - 1 to disable the chart
42 tomcat_accesses=$(curl -s "${tomcat_url}" | xmllint --xpath "string(/status/connector[@name='\"http-bio-8080\"']/requestInfo/@requestCount)" - )
43 tomcat_volume=$(curl -s "${tomcat_url}" | xmllint --xpath "string(/status/connector[@name='\"http-bio-8080\"']/requestInfo/@bytesSent)" - )
44 tomcat_threads=$(curl -s "${tomcat_url}" | xmllint --xpath "string(/status/connector[@name='\"http-bio-8080\"']/threadInfo/@currentThreadCount)" -)
45 tomcat_threads_busy=$(curl -s "${tomcat_url}" | xmllint --xpath "string(/status/connector[@name='\"http-bio-8080\"']/threadInfo/@currentThreadsBusy)" -)
46 tomcat_jvm_freememory=$(curl -s "${tomcat_url}" | xmllint --xpath "string(/status/jvm/memory/@free)" - )
51 # _create is called once, to create the charts
54 CHART tomcat.accesses '' "tomcat requests" "requests/s" statistics tomcat.accesses area $[tomcat_priority + 8] $tomcat_update_every
55 DIMENSION accesses '' incremental
56 CHART tomcat.volume '' "tomcat volume" "KB/s" volume tomcat.volume area $[tomcat_priority + 5] $tomcat_update_every
57 DIMENSION volume '' incremental divisor ${tomcat_decimal_KB_detail}
58 CHART tomcat.threads '' "tomcat threads" "current threads" statistics tomcat.threads line $[tomcat_priority + 6] $tomcat_update_every
59 DIMENSION current '' absolute 1
60 DIMENSION busy '' absolute 1
61 CHART tomcat.jvm '' "JVM Free Memory" "MB" statistics tomcat.jvm area $[tomcat_priority + 8] $tomcat_update_every
62 DIMENSION jvm '' absolute 1 ${tomcat_decimal_detail}
67 # _update is called continiously, to collect the values
70 # the first argument to this function is the microseconds since last update
71 # pass this parameter to the BEGIN statement (see bellow).
73 # do all the work to collect / calculate the values
75 # remember: KEEP IT SIMPLE AND SHORT
77 tomcat_get || return 1
79 # write the result of the work.
81 BEGIN tomcat.accesses $1
82 SET accesses = $[tomcat_accesses]
84 BEGIN tomcat.volume $1
85 SET volume = $[tomcat_volume]
87 BEGIN tomcat.threads $1
88 SET current = $[tomcat_threads]
89 SET busy = $[tomcat_threads_busy]
92 SET jvm = $[tomcat_jvm_freememory]