$ check_rabbitmq_connection.py -server -username "ruser" -password "rpassword"Ĭheck connection to the server using defined credentials and non-existing virtual host. $ check_rabbitmq_connection.py -server Ĭheck connection to the server using defined credentials. #PIKA PYTHON PASSWORD#password PASSWORD Define password (default: guest)Ĭheck connection to the server using default credentials that are incorrect in this case. username USERNAME Define username (default: guest) h, -help show this help message and exit Ĭheck_rabbitmq_connection.py: error: the following arguments are required: -serverĭisplay usage information. Usage: check_rabbitmq_connection.py -server SERVER $ sudo chmod +x check_rabbitmq_connection.pyĮxecute command without any parameters. Print('Error:', error._class_._name_)Įnsure that execute permissions are set. # try to establish connection and check its statusĬonnection = pika.BlockingConnection(parameters) Parameters = pika.ConnectionParameters(host=args, port=args, virtual_host=args, credentials=credentials, ssl=args) Parser.add_argument('-password', default='guest', help='Define password (default: %(default)s)')Ĭredentials = pika.PlainCredentials(args, args) Parser.add_argument('-username', default='guest', help='Define username (default: %(default)s)') Parser.add_argument('-port', type=int, default=5672, help='Define port (default: %(default)s)') Parser.add_argument('-ssl', action='store_true', help='Enable SSL (default: %(default)s)') Parser.add_argument('-virtual_host', default='/', help='Define virtual host') Parser.add_argument('-server', required=True, help='Define RabbitMQ server') Parser = argparse.ArgumentParser(description='Check connection to RabbitMQ server') # import a pure-Python implementation of the AMQP 0-9-1 # Check connection to the RabbitMQ server What I like about this script is that it’s straightforward and easy to extend. Save the following Python script somewhere in the PATH as the check_rabbitmq_connection.py file. Install Pika, pure-Python implementation of the AMQP 0-9-1 protocol. #PIKA PYTHON FULL#Here's a full example of what happens in the terminalīefore answering: please ask for clarification, if needed, and don't forget to answer my questions during the process.Use Python script to verify that client can connect to the RabbitMQ message broker. Is my test relevant to simulate a rabbitMQ shutdown? #PIKA PYTHON CODE#Is my code well architectured? With python best practices? Is it a good practice to start an infinite loop like this in python? Does a better way exist to "hang on"? (don't end the program's execution) Print("The channel " + config + channel_alive + alive) The thread is still alive too."Ĭhannel_alive = " is closed and should be reopened" Print("The channel " + queue + " is closed reopen.")įor key in thread.channel._consumer_infos:Īlive = ". Self.queues = ("preview", "common", "urgent")įrom import RabbitMQ :param _connection.BlockingChannel channel: The channelĭef consume(self, method, properties, body):ĬonnectionParams.py class ConnectionParams:įrom import ThreadedConnection nnectionParams = ConnectionParams()Ĭonnection = pika.PlainCredentials(, )Ĭonnection = pika.BlockingConnection(parameters) waiting for reopenning')įrom import ConnectionParams Raise Exception('no connection available') _consume(queue=self.queueName, on_message_callback=nsume, auto_ack=True) _declare(queue=self.queueName, durable=True, arguments=) ThreadedConnection.py from import Connectionįrom import ConsumerĬlass ThreadedConnection(threading.Thread): My implementation below fixes this behavior (for simplicity I develop this entirely apart from the existing software, it was to reproduce the bug and fix it)īut I'm new in python, so I'm sure this code is bloated or ugly in some way, and I will gladly take all the advice you can give. When RabbitMQ closes (reboot, shutdown, or other reason), consumers are disconnected, and no messages are consumed anymore. So why I'm trying to develop this again? Because the current implementation is buggy at a very particular point : This monitor is never supposed to be down and will have to work indefinitely. After that, the monitor consumes another message if it exists. Those messages are supposed to start a background After Effect process (via PowerShell) and monitor it's workflow until it finishes. #PIKA PYTHON WINDOWS#This program is working on a Windows machine (made by Inno Setup), which has to listen to the RabbitMQ server and consume messages. I'm a beginner using Python, and I'm trying to implement a functionality of a monitor program already developed by an other programmer.
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