--- /dev/null
+# netdata python.d.plugin configuration for memcached
+#
+# This file is in YaML format. Generally the format is:
+#
+# name: value
+#
+# There are 2 sections:
+# - global variables
+# - one or more JOBS
+#
+# JOBS allow you to collect values from multiple sources.
+# Each source will have its own set of charts.
+#
+# JOB parameters have to be indented (using spaces only, example below).
+
+# ----------------------------------------------------------------------
+# Global Variables
+# These variables set the defaults for all JOBs, however each JOB
+# may define its own, overriding the defaults.
+
+# update_every sets the default data collection frequency.
+# If unset, the python.d.plugin default is used.
+# update_every: 1
+
+# priority controls the order of charts at the netdata dashboard.
+# Lower numbers move the charts towards the top of the page.
+# If unset, the default for python.d.plugin is used.
+# priority: 60000
+
+# retries sets the number of retries to be made in case of failures.
+# If unset, the default for python.d.plugin is used.
+# Attempts to restore the service are made once every update_every
+# and only if the module has collected values in the past.
+# retries: 5
+
+# ----------------------------------------------------------------------
+# JOBS (data collection sources)
+#
+# The default JOBS share the same *name*. JOBS with the same name
+# are mutually exclusive. Only one of them will be allowed running at
+# any time. This allows autodetection to try several alternatives and
+# pick the one that works.
+#
+# Any number of jobs is supported.
+#
+# All python.d.plugin JOBS (for all its modules) support a set of
+# predefined parameters. These are:
+#
+# job_name:
+# name: myname # the JOB's name as it will appear at the
+# # dashboard (by default is the job_name)
+# # JOBs sharing a name are mutually exclusive
+# update_every: 1 # the JOB's data collection frequency
+# priority: 60000 # the JOB's order on the dashboard
+# retries: 5 # the JOB's number of restoration attempts
+#
+# Additionally to the above, memcached also supports the following:
+#
+# socket: 'path/to/memcached.sock'
+#
+# or
+# host: 'IP or HOSTNAME' # the host to connect to
+# port: PORT # the port to connect to
+#
+#
+
+# ----------------------------------------------------------------------
+# AUTO-DETECTION JOBS
+# only one of them will run (they have the same name)
+
+localhost:
+ name : 'local'
+ host : 'localhost'
+ port : 11211
+
+localipv4:
+ name : 'local'
+ host : '127.0.0.1'
+ port : 11211
+
+localipv6:
+ name : 'local'
+ host : '::1'
+ port : 11211
+
--- /dev/null
+# -*- coding: utf-8 -*-
+# Description: memcached netdata python.d module
+# Author: Pawel Krupa (paulfantom)
+
+from base import SocketService
+
+# default module values (can be overridden per job in `config`)
+#update_every = 2
+priority = 60000
+retries = 60
+
+# default job configuration (overridden by python.d.plugin)
+# config = {'local': {
+# 'update_every': update_every,
+# 'retries': retries,
+# 'priority': priority,
+# 'host': 'localhost',
+# 'port': 11211,
+# 'unix_socket': None
+# }}
+
+ORDER = ['net', 'connections', 'items', 'evicted_reclaimed', 'get', 'get_rate', 'set_rate', 'delete', 'cas', 'increment', 'decrement', 'touch', 'touch_rate']
+
+CHARTS = {
+ 'net': {
+ 'options': [None, 'Network', 'bytes', 'Network', 'memcached.net', 'line'],
+ 'lines': [
+ ['bytes_read', 'read', 'absolute'],
+ ['bytes_written', 'written', 'absolute']
+ ]},
+ 'connections': {
+ 'options': [None, 'Connections', 'connections', 'Cluster', 'memcached.cluster', 'line'],
+ 'lines': [
+ ['curr_connections', 'current', 'absolute'],
+ ['rejected_connections', 'rejected', 'absolute'],
+ ['total_connections', 'total', 'absolute']
+ ]},
+ 'items': {
+ 'options': [None, 'Items', 'items', 'Cluster', 'memcached.cluster', 'line'],
+ 'lines': [
+ ['curr_items', 'current', 'absolute'],
+ ['total_items', 'total', 'absolute']
+ ]},
+ 'evicted_reclaimed': {
+ 'options': [None, 'Items', 'items', 'Evicted & Reclaimed', 'memcached.evicted_reclaimed', 'line'],
+ 'lines': [
+ ['evictions', 'evicted', 'absolute'],
+ ['reclaimed', 'reclaimed', 'absolute']
+ ]},
+ 'get': {
+ 'options': [None, 'Requests', 'requests', 'GET', 'memcached.get', 'stacked'],
+ 'lines': [
+ ['get_hits', 'hits', 'percent-of-absolute-row'],
+ ['get_misses', 'misses', 'percent-of-absolute-row']
+ ]},
+ 'get_rate': {
+ 'options': [None, 'Rate', 'requests/s', 'GET', 'memcached.get', 'line'],
+ 'lines': [
+ ['cmd_get', 'rate', 'incremental']
+ ]},
+ 'set_rate': {
+ 'options': [None, 'Rate', 'requests/s', 'SET', 'memcached.set', 'line'],
+ 'lines': [
+ ['cmd_set', 'rate', 'incremental']
+ ]},
+ 'delete': {
+ 'options': [None, 'Requests', 'requests', 'DELETE', 'memcached.delete', 'stacked'],
+ 'lines': [
+ ['delete_hits', 'hits', 'percent-of-absolute-row'],
+ ['delete_misses', 'misses', 'percent-of-absolute-row'],
+ ]},
+ 'cas': {
+ 'options': [None, 'Requests', 'requests', 'CAS', 'memcached.cas', 'stacked'],
+ 'lines': [
+ ['cas_hits', 'hits', 'percent-of-absolute-row'],
+ ['cas_misses', 'misses', 'percent-of-absolute-row'],
+ ['cas_badval', 'bad value', 'percent-of-absolute-row']
+ ]},
+ 'increment': {
+ 'options': [None, 'Requests', 'requests', 'Increment', 'memcached.incr', 'stacked'],
+ 'lines': [
+ ['incr_hits', 'hits', 'percent-of-absolute-row'],
+ ['incr_misses', 'misses', 'percent-of-absolute-row']
+ ]},
+ 'decrement': {
+ 'options': [None, 'Requests', 'requests', 'Decrement', 'memcached.decr', 'stacked'],
+ 'lines': [
+ ['decr_hits', 'hits', 'percent-of-absolute-row'],
+ ['decr_misses', 'misses', 'percent-of-absolute-row']
+ ]},
+ 'touch': {
+ 'options': [None, 'Requests', 'requests', 'Touch', 'memcached.touch', 'stacked'],
+ 'lines': [
+ ['touch_hits', 'hits', 'percent-of-absolute-row'],
+ ['touch_misses', 'misses', 'percent-of-absolute-row']
+ ]},
+ 'touch_rate': {
+ 'options': [None, 'Rate', 'requests/s', 'Touch', 'memcached.touch', 'line'],
+ 'lines': [
+ ['cmd_touch', 'rate', 'incremental']
+ ]}
+}
+
+
+class Service(SocketService):
+ def __init__(self, configuration=None, name=None):
+ SocketService.__init__(self, configuration=configuration, name=name)
+ self.request = "stats\r\n"
+ self.host = "localhost"
+ self.port = 11211
+ self.unix_socket = None
+ self.order = ORDER
+ self.definitions = CHARTS
+
+ def _get_data(self):
+ """
+ Get data from socket
+ :return: dict
+ """
+ try:
+ raw = self._get_raw_data().split("\n")
+ except AttributeError:
+ self.error("no data received")
+ return None
+ if raw[0].startswith('ERROR'):
+ self.error("Memcached returned ERROR")
+ return None
+ data = {}
+ for line in raw:
+ if line.startswith('STAT'):
+ try:
+ t = line[5:].split(' ')
+ data[t[0]] = int(t[1])
+ except (IndexError, ValueError):
+ pass
+ try:
+ data['hit_rate'] = int((data['keyspace_hits'] / float(data['keyspace_hits'] + data['keyspace_misses'])) * 100)
+ except:
+ data['hit_rate'] = 0
+
+ if len(data) == 0:
+ self.error("received data doesn't have needed records")
+ return None
+ else:
+ return data
+
+ def check(self):
+ """
+ Parse configuration, check if memcached is available
+ :return: boolean
+ """
+ self._parse_config()
+ if self.name == "":
+ self.name = "local"
+ self.chart_name += "_" + self.name
+ data = self._get_data()
+ if data is None:
+ return False
+
+ return True
projects / netdata.git / commitdiff