retry函数首先判断@retry装饰器是否带参数,这个在上篇文章已经介绍过,这个不在重述。 然后直接调用Retrying对象的call函数 call函数 def call(self, fn, *args, **kwargs): #记录第一次重试的开始时间 start_time = int(round(time.time() * 1000)) #记录重试的次数 attempt_number = 1 while True: try:...
@retry((ValueError,TypeError),delay=1,backoff=2,max_delay=4)defmake_trouble():'''Retry on ValueError or TypeError, sleep 1, 2, 4, 4, ... seconds between attempts.''' 代码语言:javascript 复制 @retry(ValueError,delay=1,jitter=1)defmake_trouble():'''Retry on ValueError, sleep 1, 2,...
defmy_before_log(logger:Logger):defmy_log(retry_state:RetryCallState):fn=retry_state.fnargs=retry_state.argsattempt=retry_state.attempt_numberifattempt>2:logger.warning(f"Start retry method {fn.__name__} with args: {args}")returnmy_log 项目实践:带重试的网络请求 最后,为了让大家在项目中如...
from tenacity import retry, stop_after_attempt, retry_if_result n = 0 def return_value(retry_state): """自定义回调函数""" return retry_state.outcome.result() # 返回函数产生的最后结果或异常 @retry(stop=stop_after_attempt(3), retry_error_callback=return_value, retry=retry_if_result(lambd...
@retry(wait=wait_exponential(multiplier=1,min=4,max=10))defwait_exponential_1():print("每次重试等待 2^x * multiplier 秒,x为重试次数,最小4秒,最多10秒")raiseException 结合固定和抖动等待: @retry(wait=wait_fixed(3)+wait_random(0,2))defwait_fixed_jitter():print("每次重试前等待3到3+2...
retry_call defretry_call(f, fargs=None, fkwargs=None, exceptions=Exception, tries=-1, delay=0, max_delay=None, backoff=1, jitter=0, logger=logging_logger): """ Calls a function and re-executes it if it failed. :param f: the function to execute. ...
tenacity库的错误重试核心功能由其retry装饰器来实现,默认在不给retry装饰器传参数时,它会在其所装饰的函数运行过程抛出错误时不停地重试下去。 fromtenacityimportretry @retrydefnever_give_up_never_surrender():print("无条件重试,重试之间无间隔,报错之后就立马重试")raiseExceptionif__name__=='__main__': ...
"""retry callback""" logger.info('task id:{} , arg:{} , retry ! einfo: {}'.format(task_id, args, exc)) @app.task(base=TaskMonitor, bind=True, name='post_file') defpost_file(self, file_names): logger.info(self.request.__dict__...
() File "/home/.local/lib/python3.11/site-packages/redis/client.py", line 2120, in execute return conn.retry.call_with_retry( ^^^ File "/home/.local/lib/python3.11/site-packages/redis/retry.py", line 46, in call_with_retry return do() ^^^ File "/home/.local/lib/python3.11/site...
pip install retrying 示例 # -*- coding: utf-8 -*-from retrying import retry# 最多执行5次@retry(stop_max_attempt_number=5)def foo():print("foo")raise Exception("Exception")if __name__ == '__main__':foo()"""输出结果:foofoofoofoofooTraceback (most recent call last):...Exception...