尝试使用请求函数来实现重试/回退,如果所有重试都失败,则返回HTTP状态。似乎我可以让重试工作,或者使用try/except,但不能同时使用这两种方法。包装在另一个函数中也无济于事。
OSX mojave上的Python 3.7.7请求2.24.0韧性6.2.0
带装饰器和不带try/except的函数1调用坚韧规则,但我没有得到http错误作为返回:
In [1330]: @retry(reraise=True,wait=wait_fixed(1), stop=stop_after_attempt(3))
...: def geturl(url):
...: """
...: get the url and raise http request errors for tenacity
...: """
...: print(datetime.now().strftime('%Y-%m-%d-%H:%M:%S'))
...: headers = {'user-agent': 'my-app/0.0.1','Content-Type':'application/json'}
...: data = {'name':'testcall','service':'armor'}
...: r=None
...: r = requests.post(url, data=json.dumps(data), headers=headers)
...: r.raise_for_status()
...: return r.status_code
...:
In [1331]: geturl(flakyurl)
2020-09-07-14:48:19
DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): snout:7777
DEBUG:urllib3.connectionpool:http://snout:7777 "POST /flakyservice HTTP/1.1" 406 27
2020-09-07-14:48:20
DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): snout:7777
DEBUG:urllib3.connectionpool:http://snout:7777 "POST /flakyservice HTTP/1.1" 405 27
2020-09-07-14:48:21
DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): snout:7777
DEBUG:urllib3.connectionpool:http://snout:7777 "POST /flakyservice HTTP/1.1" 405 27
---------------------------------------------------------------------------
HTTPError Traceback (most recent call last)
...
HTTPError: 405 Client Error: METHOD NOT ALLOWED for url: http://snout:7777/flakyservice带有try/except的函数2获得了正确的错误,但无法调用韧度
In [1332]: @retry(reraise=True,wait=wait_fixed(1), stop=stop_after_attempt(3))
...: def geturl3(url):
...: print(datetime.now().strftime('%Y-%m-%d-%H:%M:%S'))
...: headers = {'user-agent': 'my-app/0.0.1','Content-Type':'application/json'}
...: data = {'name':'testcall','service':'armor'}
...: r=None
...: try:
...: r = requests.post(url, data=json.dumps(data), headers=headers)
...: r.raise_for_status()
...: return 'sent', r.status_code
...: except requests.exceptions.HTTPError as err:
...: return 'http failed', err
In [1334]: geturl3(flakyurl)
2020-09-07-15:23:00
DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): snout:7777
DEBUG:urllib3.connectionpool:http://snout:7777 "POST /flakyservice HTTP/1.1" 404 27
Out[1334]:
('http failed',
requests.exceptions.HTTPError('404 Client Error: NOT FOUND for url: http://snout:7777/flakyservice'))编辑:修复方法是在异常之后使用r.raise_for_status() -这将重新激活并捕获韧性
发布于 2020-09-12 07:26:31
在编辑后的问题中回答:修复方法是在异常之后使用r.raise_for_status() -这将重新激活并捕获韧性
https://stackoverflow.com/questions/63784951
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