1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
#
# Copyright 2022 Red Hat, Inc
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""Publish a sample using a TCP mechanism
"""
import socket
import msgpack
from oslo_log import log
from oslo_utils import netutils
import ceilometer
from ceilometer.i18n import _
from ceilometer import publisher
from ceilometer.publisher import utils
LOG = log.getLogger(__name__)
class TCPPublisher(publisher.ConfigPublisherBase):
def __init__(self, conf, parsed_url):
super(TCPPublisher, self).__init__(conf, parsed_url)
self.host, self.port = netutils.parse_host_port(
parsed_url.netloc, default_port=4952)
addrinfo = None
try:
addrinfo = socket.getaddrinfo(self.host, None, socket.AF_INET6,
socket.SOCK_STREAM)[0]
except socket.gaierror:
try:
addrinfo = socket.getaddrinfo(self.host, None, socket.AF_INET,
socket.SOCK_STREAM)[0]
except socket.gaierror:
pass
if addrinfo:
self.addr_family = addrinfo[0]
else:
LOG.warning(
"Cannot resolve host %s, creating AF_INET socket...",
self.host)
self.addr_family = socket.AF_INET
self.create_and_connect()
def create_and_connect(self):
self.socket = socket.socket(self.addr_family,
socket.SOCK_STREAM)
self.socket.connect((self.host, self.port))
def publish_samples(self, samples):
"""Send a metering message for publishing
:param samples: Samples from pipeline after transformation
"""
for sample in samples:
msg = utils.meter_message_from_counter(
sample, self.conf.publisher.telemetry_secret, self.conf.host)
host = self.host
port = self.port
LOG.debug("Publishing sample %(msg)s over TCP to "
"%(host)s:%(port)d", {'msg': msg, 'host': host,
'port': port})
encoded_msg = msgpack.dumps(msg, use_bin_type=True)
msg_len = len(encoded_msg).to_bytes(8, 'little')
try:
self.socket.send(msg_len + encoded_msg)
except Exception:
LOG.warning(_("Unable to send sample over TCP,"
"trying to reconnect and resend the message"))
self.create_and_connect()
try:
self.socket.send(msg_len + encoded_msg)
except Exception:
LOG.exception(_("Unable to reconnect and resend"
"sample over TCP"))
def publish_events(self, events):
"""Send an event message for publishing
:param events: events from pipeline after transformation
"""
raise ceilometer.NotImplementedError
|
