回溯(最近一次调用):
文件"download_image_from_queue.py",第44行,在
channel.start_consuming()
文件"/home/justdial/miniconda3/lib/python3.7/site-packages/pika/adapters/blocking_connection.py",第1866行,在start_consuming中
self._process_data_events(time_limit=None)
文件"/home/justdial/miniconda3/lib/python3.7/site-packages/pika/adapters/blocking_connection.py",第2027行,在_process_data_events中
self.connection.process_data_events(time_limit=time_limit)
文件"/home/justdial/miniconda3/lib/python3.7/site-packages/pika/adapters/blocking_connection.py",第825行,在process_data_events中
self._flush_output(common_terminator)
文件"/home/justdial/miniconda3/lib/python3.7/site-packages/pika/adapters/blocking_connection.py",第522行,在_flush_output中
raise self._closed_result.value.error
pika.exceptions.StreamLostError: Stream connection lost: ConnectionResetError(104, 'Connection reset by peer'
文件"download_image_from_queue.py":
def callback(ch, method, properties, body):
default_flag = True
try:
data = json.loads(body.decode("utf-8"))['DATA']
url = data['url']
dest_name = data['dest_name']
default_flag = False
except:
print ("\n INCORRECT DATA FORMAT INSERTED INTO THE QUEUE... \n")
pass
if default_flag == False:
os.system("cd /home/images_pred/ && wget -L --timeout=3 --tries=2 {} -O {}".format(url, dest_name))
print ('\n Waiting for the queue to be filled... PRESS CTRL+C TO STOP \n')
credentials = pika.PlainCredentials('abcd', 'BCD')
parameters = pika.ConnectionParameters('0.0.0.1', 5672, '/', credentials )
connection = pika.BlockingConnection(parameters)
channel = connection.channel()
#channel.basic_qos(prefetch_count = 1)
channel.basic_consume(queue = 'IMG_DOWNLOAD', auto_ack = False, on_message_callback = callback)
#channel.basic_ack()
print ('\n Waiting for the queue to be filled... PRESS CTRL+C TO STOP \n')
channel.start_consuming()
一旦它开始消费,它就开始下载,但很快就会出现错误"pika.exceptions.StreamLostError:流连接丢失: ConnectionResetError(104,由对等方重置连接“)。
有人能帮我吗?
发布于 2021-08-31 18:41:01
直到作业被处理,并且您的进程返回发送ACK之前,有许多心跳丢失,因此连接消失。
理想解决方案(推荐)
使用线程并在线程中运行代码。在这里检查一个样本:
https://github.com/pika/pika/blob/1.0.1/examples/basic_consumer_threaded.py
快速解决方案不推荐
停止心跳。
如何禁用心跳?->在创建连接时传递heartbeat=0 .
pika.ConnectionParameters(
host=RABBIT_MQ_HOST, credentials=CREDENTIALS, heartbeat=0
)
发布于 2022-03-30 21:59:02
在设置连接时尝试使用不同的connection_attempts参数。connection_attempts的默认值是1。有关更多信息,请参见下面的链接。https://pika.readthedocs.io/en/stable/modules/parameters.html
https://stackoverflow.com/questions/58927722
复制相似问题