kafka topic多分区乱序问题-Toy模板网

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[root@centos6 bin]# ./kafka-topics.sh --create --bootstrap-server 127.0.0.1:9092 --replication-factor 1 --partitions 6 --topic test1
Created topic test1.

[root@centos6 kafka]# cat produce_kafka.py
from kafka import KafkaProducer
from kafka.errors import KafkaError
import os

producer = KafkaProducer(bootstrap_servers=['127.0.0.1:9092'])

# Asynchronous by default

def send_kafka(message):
future = producer.send('test1', message)

# Block for 'synchronous' sends
try:
record_metadata = future.get(timeout=10)
except KafkaError:
# Decide what to do if produce request failed...
# log.exception()
pass
print(record_metadata.topic)
print(record_metadata.partition)
print(record_metadata.offset)

# Successful result returns assigned partition and offset

f=open("./poc.txt")
content=f.readlines()
print(type(content))

for x in content:
print(x)
send_kafka(x.encode())

f.close()

[root@centos6 kafka]# cat consumer_kafka_2.py
#!/usr/bin/env python
# coding=utf-8
"""
kafka的消费者不是线程安全的，不能多线程启用
kafka不像其他的MQ，消费完数据，直接丢掉，而是会默认存储7天，存储7天后自动清除，故而可以从头开始消费
从指定topic的partiotion的指定setoff开始消费
"""

import json
from kafka import KafkaConsumer
from kafka.structs import TopicPartition

consumer = KafkaConsumer(bootstrap_servers='localhost:9092',
auto_offset_reset='earliest')
consumer.subscribe(['test1'])
for message in consumer:
print (message)

[root@centos6 kafka]# cat out.txt
ConsumerRecord(topic=u'test1', partition=3, offset=0, timestamp=1684226903982, timestamp_type=0, key=None, value="'3---33333'\n", checksum=925189724, serialized_key_size=-1, serialized_value_size=12)
ConsumerRecord(topic=u'test1', partition=3, offset=1, timestamp=1684226903992, timestamp_type=0, key=None, value="'4---44444'\n", checksum=1373485295, serialized_key_size=-1, serialized_value_size=12)
ConsumerRecord(topic=u'test1', partition=3, offset=2, timestamp=1684226904014, timestamp_type=0, key=None, value="'6---66666'\n", checksum=-564428406, serialized_key_size=-1, serialized_value_size=12)
ConsumerRecord(topic=u'test1', partition=3, offset=3, timestamp=1684226904023, timestamp_type=0, key=None, value="'7---77777'\n", checksum=120339133, serialized_key_size=-1, serialized_value_size=12)
ConsumerRecord(topic=u'test1', partition=3, offset=4, timestamp=1684226904096, timestamp_type=0, key=None, value="'16---1616161616'\n", checksum=1304489750, serialized_key_size=-1, serialized_value_size=18)文章来源地址https://www.toymoban.com/news/detail-457230.html