a76a745978
The change sets queue.buffering.max.messages configuration option for Kafka producer effectively limiting the number of messages in the buffer before sending them to Apache Kafka. Depends-On: https://review.opendev.org/694738 Change-Id: I6ebd4e21e9d55d1ac836e92dd8bf02a678170c68 Story: 2006059 Task: 37532
65 lines
2.4 KiB
Python
65 lines
2.4 KiB
Python
# Copyright 2014,2017 Hewlett-Packard
|
|
#
|
|
# 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.
|
|
|
|
from monasca_common.kafka import client_factory
|
|
import monasca_common.kafka_lib.common as kafka_common
|
|
from oslo_config import cfg
|
|
from oslo_log import log
|
|
|
|
from monasca_api.common.messaging import exceptions
|
|
from monasca_api.common.messaging import publisher
|
|
|
|
LOG = log.getLogger(__name__)
|
|
|
|
|
|
class KafkaPublisher(publisher.Publisher):
|
|
def __init__(self, topic):
|
|
if not cfg.CONF.kafka.uri:
|
|
raise Exception('Kafka is not configured correctly! '
|
|
'Use configuration file to specify Kafka '
|
|
'uri, for example: '
|
|
'uri=192.168.1.191:9092')
|
|
|
|
self.uri = cfg.CONF.kafka.uri
|
|
self.topic = topic
|
|
self.group = cfg.CONF.kafka.group
|
|
self.wait_time = cfg.CONF.kafka.wait_time
|
|
self.is_async = cfg.CONF.kafka.is_async
|
|
self.ack_time = cfg.CONF.kafka.ack_time
|
|
self.max_retry = cfg.CONF.kafka.max_retry
|
|
self.auto_commit = cfg.CONF.kafka.auto_commit
|
|
self.compact = cfg.CONF.kafka.compact
|
|
self.partitions = cfg.CONF.kafka.partitions
|
|
self.drop_data = cfg.CONF.kafka.drop_data
|
|
|
|
config = {'queue.buffering.max.messages':
|
|
cfg.CONF.kafka.queue_buffering_max_messages}
|
|
self._producer = client_factory.get_kafka_producer(
|
|
self.uri, cfg.CONF.kafka.legacy_kafka_client_enabled, **config)
|
|
|
|
def close(self):
|
|
pass
|
|
|
|
def send_message(self, message):
|
|
try:
|
|
self._producer.publish(self.topic, message)
|
|
|
|
except (kafka_common.KafkaUnavailableError,
|
|
kafka_common.LeaderNotAvailableError):
|
|
LOG.exception('Error occurred while posting data to Kafka.')
|
|
raise exceptions.MessageQueueException()
|
|
except Exception:
|
|
LOG.exception('Unknown error.')
|
|
raise exceptions.MessageQueueException()
|