summaryrefslogtreecommitdiffstats
path: root/collectors/python.d.plugin/memcached
diff options
context:
space:
mode:
Diffstat (limited to 'collectors/python.d.plugin/memcached')
-rw-r--r--collectors/python.d.plugin/memcached/Makefile.inc13
-rw-r--r--collectors/python.d.plugin/memcached/README.md69
-rw-r--r--collectors/python.d.plugin/memcached/memcached.chart.py198
-rw-r--r--collectors/python.d.plugin/memcached/memcached.conf92
4 files changed, 372 insertions, 0 deletions
diff --git a/collectors/python.d.plugin/memcached/Makefile.inc b/collectors/python.d.plugin/memcached/Makefile.inc
new file mode 100644
index 000000000..e60357161
--- /dev/null
+++ b/collectors/python.d.plugin/memcached/Makefile.inc
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+# THIS IS NOT A COMPLETE Makefile
+# IT IS INCLUDED BY ITS PARENT'S Makefile.am
+# IT IS REQUIRED TO REFERENCE ALL FILES RELATIVE TO THE PARENT
+
+# install these files
+dist_python_DATA += memcached/memcached.chart.py
+dist_pythonconfig_DATA += memcached/memcached.conf
+
+# do not install these files, but include them in the distribution
+dist_noinst_DATA += memcached/README.md memcached/Makefile.inc
+
diff --git a/collectors/python.d.plugin/memcached/README.md b/collectors/python.d.plugin/memcached/README.md
new file mode 100644
index 000000000..3521c109d
--- /dev/null
+++ b/collectors/python.d.plugin/memcached/README.md
@@ -0,0 +1,69 @@
+# memcached
+
+Memcached monitoring module. Data grabbed from [stats interface](https://github.com/memcached/memcached/wiki/Commands#stats).
+
+1. **Network** in kilobytes/s
+ * read
+ * written
+
+2. **Connections** per second
+ * current
+ * rejected
+ * total
+
+3. **Items** in cluster
+ * current
+ * total
+
+4. **Evicted and Reclaimed** items
+ * evicted
+ * reclaimed
+
+5. **GET** requests/s
+ * hits
+ * misses
+
+6. **GET rate** rate in requests/s
+ * rate
+
+7. **SET rate** rate in requests/s
+ * rate
+
+8. **DELETE** requests/s
+ * hits
+ * misses
+
+9. **CAS** requests/s
+ * hits
+ * misses
+ * bad value
+
+10. **Increment** requests/s
+ * hits
+ * misses
+
+11. **Decrement** requests/s
+ * hits
+ * misses
+
+12. **Touch** requests/s
+ * hits
+ * misses
+
+13. **Touch rate** rate in requests/s
+ * rate
+
+### configuration
+
+Sample:
+
+```yaml
+localtcpip:
+ name : 'local'
+ host : '127.0.0.1'
+ port : 24242
+```
+
+If no configuration is given, module will attempt to connect to memcached instance on `127.0.0.1:11211` address.
+
+---
diff --git a/collectors/python.d.plugin/memcached/memcached.chart.py b/collectors/python.d.plugin/memcached/memcached.chart.py
new file mode 100644
index 000000000..3c310ec69
--- /dev/null
+++ b/collectors/python.d.plugin/memcached/memcached.chart.py
@@ -0,0 +1,198 @@
+# -*- coding: utf-8 -*-
+# Description: memcached netdata python.d module
+# Author: Pawel Krupa (paulfantom)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from bases.FrameworkServices.SocketService 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 = ['cache', 'net', 'connections', 'items', 'evicted_reclaimed',
+ 'get', 'get_rate', 'set_rate', 'cas', 'delete', 'increment', 'decrement', 'touch', 'touch_rate']
+
+CHARTS = {
+ 'cache': {
+ 'options': [None, 'Cache Size', 'megabytes', 'cache', 'memcached.cache', 'stacked'],
+ 'lines': [
+ ['avail', 'available', 'absolute', 1, 1048576],
+ ['used', 'used', 'absolute', 1, 1048576]
+ ]
+ },
+ 'net': {
+ 'options': [None, 'Network', 'kilobits/s', 'network', 'memcached.net', 'area'],
+ 'lines': [
+ ['bytes_read', 'in', 'incremental', 8, 1024],
+ ['bytes_written', 'out', 'incremental', -8, 1024]
+ ]
+ },
+ 'connections': {
+ 'options': [None, 'Connections', 'connections/s', 'connections', 'memcached.connections', 'line'],
+ 'lines': [
+ ['curr_connections', 'current', 'incremental'],
+ ['rejected_connections', 'rejected', 'incremental'],
+ ['total_connections', 'total', 'incremental']
+ ]
+ },
+ 'items': {
+ 'options': [None, 'Items', 'items', 'items', 'memcached.items', 'line'],
+ 'lines': [
+ ['curr_items', 'current', 'absolute'],
+ ['total_items', 'total', 'absolute']
+ ]
+ },
+ 'evicted_reclaimed': {
+ 'options': [None, 'Items', 'items', 'items', 'memcached.evicted_reclaimed', 'line'],
+ 'lines': [
+ ['reclaimed', 'reclaimed', 'absolute'],
+ ['evictions', 'evicted', 'absolute']
+ ]
+ },
+ 'get': {
+ 'options': [None, 'Requests', 'requests', 'get ops', '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 ops', 'memcached.get_rate', 'line'],
+ 'lines': [
+ ['cmd_get', 'rate', 'incremental']
+ ]
+ },
+ 'set_rate': {
+ 'options': [None, 'Rate', 'requests/s', 'set ops', 'memcached.set_rate', 'line'],
+ 'lines': [
+ ['cmd_set', 'rate', 'incremental']
+ ]
+ },
+ 'delete': {
+ 'options': [None, 'Requests', 'requests', 'delete ops', 'memcached.delete', 'stacked'],
+ 'lines': [
+ ['delete_hits', 'hits', 'percent-of-absolute-row'],
+ ['delete_misses', 'misses', 'percent-of-absolute-row'],
+ ]
+ },
+ 'cas': {
+ 'options': [None, 'Requests', 'requests', 'check and set ops', '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 ops', 'memcached.increment', 'stacked'],
+ 'lines': [
+ ['incr_hits', 'hits', 'percent-of-absolute-row'],
+ ['incr_misses', 'misses', 'percent-of-absolute-row']
+ ]
+ },
+ 'decrement': {
+ 'options': [None, 'Requests', 'requests', 'decrement ops', 'memcached.decrement', 'stacked'],
+ 'lines': [
+ ['decr_hits', 'hits', 'percent-of-absolute-row'],
+ ['decr_misses', 'misses', 'percent-of-absolute-row']
+ ]
+ },
+ 'touch': {
+ 'options': [None, 'Requests', 'requests', 'touch ops', '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 ops', 'memcached.touch_rate', '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._keep_alive = True
+ self.unix_socket = None
+ self.order = ORDER
+ self.definitions = CHARTS
+
+ def _get_data(self):
+ """
+ Get data from socket
+ :return: dict
+ """
+ response = self._get_raw_data()
+ if response is None:
+ # error has already been logged
+ return None
+
+ if response.startswith('ERROR'):
+ self.error('received ERROR')
+ return None
+
+ try:
+ parsed = response.split('\n')
+ except AttributeError:
+ self.error('response is invalid/empty')
+ return None
+
+ # split the response
+ data = {}
+ for line in parsed:
+ if line.startswith('STAT'):
+ try:
+ t = line[5:].split(' ')
+ data[t[0]] = t[1]
+ except (IndexError, ValueError):
+ self.debug('invalid line received: ' + str(line))
+
+ if not data:
+ self.error("received data doesn't have any records")
+ return None
+
+ # custom calculations
+ try:
+ data['avail'] = int(data['limit_maxbytes']) - int(data['bytes'])
+ data['used'] = int(data['bytes'])
+ except (KeyError, ValueError, TypeError):
+ pass
+
+ return data
+
+ def _check_raw_data(self, data):
+ if data.endswith('END\r\n'):
+ self.debug('received full response from memcached')
+ return True
+
+ self.debug('waiting more data from memcached')
+ return False
+
+ def check(self):
+ """
+ Parse configuration, check if memcached is available
+ :return: boolean
+ """
+ self._parse_config()
+ data = self._get_data()
+ if data is None:
+ return False
+ return True
diff --git a/collectors/python.d.plugin/memcached/memcached.conf b/collectors/python.d.plugin/memcached/memcached.conf
new file mode 100644
index 000000000..85c3daf65
--- /dev/null
+++ b/collectors/python.d.plugin/memcached/memcached.conf
@@ -0,0 +1,92 @@
+# 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: 60
+
+# autodetection_retry sets the job re-check interval in seconds.
+# The job is not deleted if check fails.
+# Attempts to start the job are made once every autodetection_retry.
+# This feature is disabled by default.
+# autodetection_retry: 0
+
+# ----------------------------------------------------------------------
+# 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: 60 # the JOB's number of restoration attempts
+# autodetection_retry: 0 # the JOB's re-check interval in seconds
+#
+# 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
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-04 04:21:07 +0000