python操作kafka（confluent_kafka 生产）

 #!/usr/bin/python
 # -*- coding:utf-8 -*-

 from confluent_kafka import Producer
 import json
 import time
 import sys

 def delivery_report(err, msg):
     """ Called once for each message produced to indicate delivery result.
         Triggered by poll() or flush(). """
     if err is not None:
         print('Message delivery failed: {}'.format(err))
     else:
         print('Message delivered to {} [{}]'.format(msg.topic(), msg.partition()))

 def c_kafka(topic, payloads, sleep_time=0, **conf):
     gu = []
     p = Producer(**conf)
     for i in payloads:
         gu.insert(0, "ping%s" % int(round(int(time.time() * 1000))))
         p.poll(0)
         p.produce(topic, json.dumps(i).encode('utf-8'), callback=delivery_report)
         if sleep_time > 0:
             p.flush()
             time.sleep(int(sleep_time))
     if sleep_time == 0:
         p.flush
     return gu

 if __name__ == "__main__":
     args = sys.argv
     ip = args[1]
     rate_value = args[2]
     ranges = args[3]
     sleep_time = args[4]
     payloads = []
     conf = {
         'bootstrap.servers': 'authtest.jdq.jd.local:9888',
         'client.id': '23a49894'
     }
     topic = 'WDMEtlTest'
     for i in range(int(ranges)):
         payloads.append({
             "timestamp": int(time.time()) + ((i + 1) * 60),
             "timestampISO": "2018-09-12T06:22:40.000Z",
             "topic": "devEtl03",
             "ip": args[1],
             "if_name": "Ethernet6/4",
             "service_status":"在线",
             "data_level": "debug",
             "globalunique": '%s%s' % ('dci', int(time.time())),
         }
     )
     print c_kafka(topic, payloads, sleep_time, **conf)