mirror of
https://github.com/ClickHouse/ClickHouse.git
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85 lines
2.5 KiB
Python
Executable File
85 lines
2.5 KiB
Python
Executable File
#! /usr/bin/env python3
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# -*- coding: utf-8 -*-
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# `pip install …`
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import kafka # … kafka-python
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import argparse
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from concurrent.futures import ThreadPoolExecutor
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import enum
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import multiprocessing
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import sys
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import time
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class Sync(enum.Enum):
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NONE = 'none'
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LEAD = 'leader'
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ALL = 'all'
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def __str__(self):
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return self.value
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def convert(self):
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values = {
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str(Sync.NONE): '0',
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str(Sync.LEAD): '1',
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str(Sync.ALL): 'all',
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}
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return values[self.value]
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def main():
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parser = argparse.ArgumentParser(description='Produce a single message taken from input')
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parser.add_argument('--server', type=str, metavar='HOST', default='localhost',
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help='Kafka bootstrap-server address')
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parser.add_argument('--port', type=int, metavar='PORT', default=9092,
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help='Kafka bootstrap-server port')
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parser.add_argument('--client', type=str, default='ch-kafka-python',
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help='custom client id for this producer')
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parser.add_argument('--topic', type=str, required=True,
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help='name of Kafka topic to store in')
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parser.add_argument('--retries', type=int, default=0,
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help='number of retries to send on failure')
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parser.add_argument('--multiply', type=int, default=1,
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help='multiplies incoming string many times')
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parser.add_argument('--repeat', type=int, default=1,
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help='send same (multiplied) message many times')
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mode_group = parser.add_mutually_exclusive_group()
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mode_group.add_argument('--jobs', type=int, default=multiprocessing.cpu_count(),
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help='number of concurrent jobs')
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mode_group.add_argument('--delay', type=int, metavar='SECONDS', default=0,
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help='delay before sending next message')
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args = parser.parse_args()
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config = {
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'bootstrap_servers': f'{args.server}:{args.port}',
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'client_id': args.client,
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'retries': args.retries,
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}
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client = kafka.KafkaProducer(**config)
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message = sys.stdin.buffer.read() * args.multiply
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def send(num):
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if args.delay > 0:
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time.sleep(args.delay)
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client.send(topic=args.topic, value=message)
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print(f'iteration {num}: sent a message multiplied {args.multiply} times')
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if args.delay > 0:
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args.jobs = 1
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pool = ThreadPoolExecutor(max_workers=args.jobs)
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for num in range(args.repeat):
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pool.submit(send, num)
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pool.shutdown()
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client.flush()
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client.close()
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return 0
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if __name__ == "__main__":
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exit(main())
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