Migrate load_example.py to KafkaProducer / KafkaConsumer

This commit is contained in:
Dana Powers
2016-02-18 22:46:39 -08:00
parent 99bc503b1a
commit 6a2466b4d9

View File

@@ -1,43 +1,46 @@
#!/usr/bin/env python #!/usr/bin/env python
import threading, logging, time, collections import threading, logging, time
from kafka.client import KafkaClient from kafka import KafkaConsumer, KafkaProducer
from kafka.consumer import SimpleConsumer
from kafka.producer import SimpleProducer
msg_size = 524288 msg_size = 524288
producer_stop = threading.Event()
consumer_stop = threading.Event()
class Producer(threading.Thread): class Producer(threading.Thread):
daemon = True big_msg = b'1' * msg_size
big_msg = "1" * msg_size
def run(self): def run(self):
client = KafkaClient("localhost:9092") producer = KafkaProducer(bootstrap_servers='localhost:9092')
producer = SimpleProducer(client)
self.sent = 0 self.sent = 0
while True: while not producer_stop.is_set():
producer.send_messages('my-topic', self.big_msg) producer.send('my-topic', self.big_msg)
self.sent += 1 self.sent += 1
producer.flush()
class Consumer(threading.Thread): class Consumer(threading.Thread):
daemon = True
def run(self): def run(self):
client = KafkaClient("localhost:9092") consumer = KafkaConsumer(bootstrap_servers='localhost:9092',
consumer = SimpleConsumer(client, "test-group", "my-topic", auto_offset_reset='earliest')
max_buffer_size = None, consumer.subscribe(['my-topic'])
)
self.valid = 0 self.valid = 0
self.invalid = 0 self.invalid = 0
for message in consumer: for message in consumer:
if len(message.message.value) == msg_size: if len(message.value) == msg_size:
self.valid += 1 self.valid += 1
else: else:
self.invalid += 1 self.invalid += 1
if consumer_stop.is_set():
break
consumer.close()
def main(): def main():
threads = [ threads = [
Producer(), Producer(),
@@ -48,6 +51,8 @@ def main():
t.start() t.start()
time.sleep(10) time.sleep(10)
producer_stop.set()
consumer_stop.set()
print 'Messages sent: %d' % threads[0].sent print 'Messages sent: %d' % threads[0].sent
print 'Messages recvd: %d' % threads[1].valid print 'Messages recvd: %d' % threads[1].valid
print 'Messages invalid: %d' % threads[1].invalid print 'Messages invalid: %d' % threads[1].invalid
@@ -55,6 +60,6 @@ def main():
if __name__ == "__main__": if __name__ == "__main__":
logging.basicConfig( logging.basicConfig(
format='%(asctime)s.%(msecs)s:%(name)s:%(thread)d:%(levelname)s:%(process)d:%(message)s', format='%(asctime)s.%(msecs)s:%(name)s:%(thread)d:%(levelname)s:%(process)d:%(message)s',
level=logging.DEBUG level=logging.INFO
) )
main() main()