| | |
| | from __future__ import print_function |
| | import threading, logging, time |
| |
|
| | from kafka import KafkaConsumer, KafkaProducer |
| |
|
| | msg_size = 524288 |
| |
|
| | producer_stop = threading.Event() |
| | consumer_stop = threading.Event() |
| |
|
| | class Producer(threading.Thread): |
| | big_msg = b'1' * msg_size |
| |
|
| | def run(self): |
| | producer = KafkaProducer(bootstrap_servers='localhost:9092') |
| | self.sent = 0 |
| |
|
| | while not producer_stop.is_set(): |
| | producer.send('my-topic', self.big_msg) |
| | self.sent += 1 |
| | producer.flush() |
| |
|
| |
|
| | class Consumer(threading.Thread): |
| |
|
| | def run(self): |
| | consumer = KafkaConsumer(bootstrap_servers='localhost:9092', |
| | auto_offset_reset='earliest') |
| | consumer.subscribe(['my-topic']) |
| | self.valid = 0 |
| | self.invalid = 0 |
| |
|
| | for message in consumer: |
| | if len(message.value) == msg_size: |
| | self.valid += 1 |
| | else: |
| | self.invalid += 1 |
| |
|
| | if consumer_stop.is_set(): |
| | break |
| |
|
| | consumer.close() |
| |
|
| | def main(): |
| | threads = [ |
| | Producer(), |
| | Consumer() |
| | ] |
| |
|
| | for t in threads: |
| | t.start() |
| |
|
| | time.sleep(10) |
| | producer_stop.set() |
| | consumer_stop.set() |
| | print('Messages sent: %d' % threads[0].sent) |
| | print('Messages recvd: %d' % threads[1].valid) |
| | print('Messages invalid: %d' % threads[1].invalid) |
| |
|
| | if __name__ == "__main__": |
| | logging.basicConfig( |
| | format='%(asctime)s.%(msecs)s:%(name)s:%(thread)d:%(levelname)s:%(process)d:%(message)s', |
| | level=logging.INFO |
| | ) |
| | main() |
| |
|
