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# -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# SPDX-FileCopyrightText: 2022 Nicolas Hennion <nicolas@nicolargo.com>
#
# SPDX-License-Identifier: LGPL-3.0-only
#
"""OpenTSDB interface class."""
import sys
from numbers import Number
from glances.compat import range
from glances.logger import logger
from glances.exports.glances_export import GlancesExport
import potsdb
class Export(GlancesExport):
"""This class manages the OpenTSDB export module."""
def __init__(self, config=None, args=None):
"""Init the OpenTSDB export IF."""
super(Export, self).__init__(config=config, args=args)
# Mandatory configuration keys (additional to host and port)
# N/A
# Optionals configuration keys
self.prefix = None
self.tags = None
# Load the configuration file
self.export_enable = self.load_conf('opentsdb', mandatories=['host', 'port'], options=['prefix', 'tags'])
if not self.export_enable:
exit('Missing OPENTSDB config')
# Default prefix for stats is 'glances'
if self.prefix is None:
self.prefix = 'glances'
# Init the OpenTSDB client
self.client = self.init()
def init(self):
"""Init the connection to the OpenTSDB server."""
if not self.export_enable:
return None
try:
db = potsdb.Client(self.host, port=int(self.port), check_host=True)
except Exception as e:
logger.critical("Cannot connect to OpenTSDB server %s:%s (%s)" % (self.host, self.port, e))
sys.exit(2)
return db
def export(self, name, columns, points):
"""Export the stats to the Statsd server."""
for i in range(len(columns)):
if not isinstance(points[i], Number):
continue
stat_name = '{}.{}.{}'.format(self.prefix, name, columns[i])
stat_value = points[i]
tags = self.parse_tags(self.tags)
try:
self.client.send(stat_name, stat_value, **tags)
except Exception as e:
logger.error("Can not export stats %s to OpenTSDB (%s)" % (name, e))
logger.debug("Export {} stats to OpenTSDB".format(name))
def exit(self):
"""Close the OpenTSDB export module."""
# Waits for all outstanding metrics to be sent and background thread closes
self.client.wait()
# Call the father method
super(Export, self).exit()