Adding upstream version 1.44.3.upstream/1.44.3upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 197 insertions, 0 deletions

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 00000000..adb9560b
--- /dev/null
+++ b/collectors/python.d.plugin/memcached/memcached.chart.py
@@ -0,0 +1,197 @@
+# -*- 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
+
+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', 'MiB', 'cache', 'memcached.cache', 'stacked'],
+        'lines': [
+            ['avail', 'available', 'absolute', 1, 1 << 20],
+            ['used', 'used', 'absolute', 1, 1 << 20]
+        ]
+    },
+    'net': {
+        'options': [None, 'Network', 'kilobits/s', 'network', 'memcached.net', 'area'],
+        'lines': [
+            ['bytes_read', 'in', 'incremental', 8, 1000],
+            ['bytes_written', 'out', 'incremental', -8, 1000],
+        ]
+    },
+    '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, 'Evicted and Reclaimed Items', 'items', 'items', 'memcached.evicted_reclaimed', 'line'],
+        'lines': [
+            ['reclaimed', 'reclaimed', 'absolute'],
+            ['evictions', 'evicted', 'absolute']
+        ]
+    },
+    'get': {
+        'options': [None, 'Get 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, 'Get Request Rate', 'requests/s', 'get ops', 'memcached.get_rate', 'line'],
+        'lines': [
+            ['cmd_get', 'rate', 'incremental']
+        ]
+    },
+    'set_rate': {
+        'options': [None, 'Set Request Rate', 'requests/s', 'set ops', 'memcached.set_rate', 'line'],
+        'lines': [
+            ['cmd_set', 'rate', 'incremental']
+        ]
+    },
+    'delete': {
+        'options': [None, 'Delete 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, 'Check and Set 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, 'Increment 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, 'Decrement 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, 'Touch 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, 'Touch Request 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.order = ORDER
+        self.definitions = CHARTS
+        self.request = 'stats\r\n'
+        self.host = 'localhost'
+        self.port = 11211
+        self._keep_alive = True
+        self.unix_socket = None
+
+    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