Adding upstream version 1.37.1.upstream/1.37.1upstream

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

1 files changed, 247 insertions, 0 deletions

diff --git a/collectors/python.d.plugin/rethinkdbs/rethinkdbs.chart.py b/collectors/python.d.plugin/rethinkdbs/rethinkdbs.chart.py
new file mode 100644
index 0000000..e3fbc36
--- /dev/null
+++ b/collectors/python.d.plugin/rethinkdbs/rethinkdbs.chart.py
@@ -0,0 +1,247 @@
+# -*- coding: utf-8 -*-
+# Description: rethinkdb netdata python.d module
+# Author: Ilya Mashchenko (ilyam8)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+try:
+    import rethinkdb as rdb
+
+    HAS_RETHINKDB = True
+except ImportError:
+    HAS_RETHINKDB = False
+
+from bases.FrameworkServices.SimpleService import SimpleService
+
+ORDER = [
+    'cluster_connected_servers',
+    'cluster_clients_active',
+    'cluster_queries',
+    'cluster_documents',
+]
+
+
+def cluster_charts():
+    return {
+        'cluster_connected_servers': {
+            'options': [None, 'Connected Servers', 'servers', 'cluster', 'rethinkdb.cluster_connected_servers',
+                        'stacked'],
+            'lines': [
+                ['cluster_servers_connected', 'connected'],
+                ['cluster_servers_missing', 'missing'],
+            ]
+        },
+        'cluster_clients_active': {
+            'options': [None, 'Active Clients', 'clients', 'cluster', 'rethinkdb.cluster_clients_active',
+                        'line'],
+            'lines': [
+                ['cluster_clients_active', 'active'],
+            ]
+        },
+        'cluster_queries': {
+            'options': [None, 'Queries', 'queries/s', 'cluster', 'rethinkdb.cluster_queries', 'line'],
+            'lines': [
+                ['cluster_queries_per_sec', 'queries'],
+            ]
+        },
+        'cluster_documents': {
+            'options': [None, 'Documents', 'documents/s', 'cluster', 'rethinkdb.cluster_documents', 'line'],
+            'lines': [
+                ['cluster_read_docs_per_sec', 'reads'],
+                ['cluster_written_docs_per_sec', 'writes'],
+            ]
+        },
+    }
+
+
+def server_charts(n):
+    o = [
+        '{0}_client_connections'.format(n),
+        '{0}_clients_active'.format(n),
+        '{0}_queries'.format(n),
+        '{0}_documents'.format(n),
+    ]
+    f = 'server {0}'.format(n)
+
+    c = {
+        o[0]: {
+            'options': [None, 'Client Connections', 'connections', f, 'rethinkdb.client_connections', 'line'],
+            'lines': [
+                ['{0}_client_connections'.format(n), 'connections'],
+            ]
+        },
+        o[1]: {
+            'options': [None, 'Active Clients', 'clients', f, 'rethinkdb.clients_active', 'line'],
+            'lines': [
+                ['{0}_clients_active'.format(n), 'active'],
+            ]
+        },
+        o[2]: {
+            'options': [None, 'Queries', 'queries/s', f, 'rethinkdb.queries', 'line'],
+            'lines': [
+                ['{0}_queries_total'.format(n), 'queries', 'incremental'],
+            ]
+        },
+        o[3]: {
+            'options': [None, 'Documents', 'documents/s', f, 'rethinkdb.documents', 'line'],
+            'lines': [
+                ['{0}_read_docs_total'.format(n), 'reads', 'incremental'],
+                ['{0}_written_docs_total'.format(n), 'writes', 'incremental'],
+            ]
+        },
+    }
+
+    return o, c
+
+
+class Cluster:
+    def __init__(self, raw):
+        self.raw = raw
+
+    def data(self):
+        qe = self.raw['query_engine']
+
+        return {
+            'cluster_clients_active': qe['clients_active'],
+            'cluster_queries_per_sec': qe['queries_per_sec'],
+            'cluster_read_docs_per_sec': qe['read_docs_per_sec'],
+            'cluster_written_docs_per_sec': qe['written_docs_per_sec'],
+            'cluster_servers_connected': 0,
+            'cluster_servers_missing': 0,
+        }
+
+
+class Server:
+    def __init__(self, raw):
+        self.name = raw['server']
+        self.raw = raw
+
+    def error(self):
+        return self.raw.get('error')
+
+    def data(self):
+        qe = self.raw['query_engine']
+
+        d = {
+            'client_connections': qe['client_connections'],
+            'clients_active': qe['clients_active'],
+            'queries_total': qe['queries_total'],
+            'read_docs_total': qe['read_docs_total'],
+            'written_docs_total': qe['written_docs_total'],
+        }
+
+        return dict(('{0}_{1}'.format(self.name, k), d[k]) for k in d)
+
+
+# https://pypi.org/project/rethinkdb/2.4.0/
+# rdb.RethinkDB() can be used as rdb drop in replacement.
+# https://github.com/rethinkdb/rethinkdb-python#quickstart
+def get_rethinkdb():
+    if hasattr(rdb, 'RethinkDB'):
+        return rdb.RethinkDB()
+    return rdb
+
+
+class Service(SimpleService):
+    def __init__(self, configuration=None, name=None):
+        SimpleService.__init__(self, configuration=configuration, name=name)
+        self.order = list(ORDER)
+        self.definitions = cluster_charts()
+        self.host = self.configuration.get('host', '127.0.0.1')
+        self.port = self.configuration.get('port', 28015)
+        self.user = self.configuration.get('user', 'admin')
+        self.password = self.configuration.get('password')
+        self.timeout = self.configuration.get('timeout', 2)
+        self.rdb = None
+        self.conn = None
+        self.alive = True
+
+    def check(self):
+        if not HAS_RETHINKDB:
+            self.error('"rethinkdb" module is needed to use rethinkdbs.py')
+            return False
+
+        self.debug("rethinkdb driver version {0}".format(rdb.__version__))
+        self.rdb = get_rethinkdb()
+
+        if not self.connect():
+            return None
+
+        stats = self.get_stats()
+
+        if not stats:
+            return None
+
+        for v in stats[1:]:
+            if get_id(v) == 'server':
+                o, c = server_charts(v['server'])
+                self.order.extend(o)
+                self.definitions.update(c)
+
+        return True
+
+    def get_data(self):
+        if not self.is_alive():
+            return None
+
+        stats = self.get_stats()
+
+        if not stats:
+            return None
+
+        data = dict()
+
+        # cluster
+        data.update(Cluster(stats[0]).data())
+
+        # servers
+        for v in stats[1:]:
+            if get_id(v) != 'server':
+                continue
+
+            s = Server(v)
+
+            if s.error():
+                data['cluster_servers_missing'] += 1
+            else:
+                data['cluster_servers_connected'] += 1
+                data.update(s.data())
+
+        return data
+
+    def get_stats(self):
+        try:
+            return list(self.rdb.db('rethinkdb').table('stats').run(self.conn).items)
+        except rdb.errors.ReqlError:
+            self.alive = False
+            return None
+
+    def connect(self):
+        try:
+            self.conn = self.rdb.connect(
+                host=self.host,
+                port=self.port,
+                user=self.user,
+                password=self.password,
+                timeout=self.timeout,
+            )
+            self.alive = True
+            return True
+        except rdb.errors.ReqlError as error:
+            self.error('Connection to {0}:{1} failed: {2}'.format(self.host, self.port, error))
+            return False
+
+    def reconnect(self):
+        # The connection is already closed after rdb.errors.ReqlError,
+        #  so we do not need to call conn.close()
+        if self.connect():
+            return True
+        return False
+
+    def is_alive(self):
+        if not self.alive:
+            return self.reconnect()
+        return True
+
+
+def get_id(v):
+    return v['id'][0]