1
我正在做從谷歌應用程序引擎到谷歌雲ML（我沒有創建模型）的請求（在線預測），並不時得到異常「等待HTTP響應時超出截止日期從URL」 完整跟蹤此：請求谷歌雲ML超時
Deadline exceeded while waiting for HTTP response from URL: https://ml.googleapis.com/v1/projects/project-id/models/my-model/versions/v3:predict?alt=json (/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py:1552)
Traceback (most recent call last):
File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1535, in __call__
rv = self.handle_exception(request, response, e)
File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1529, in __call__
rv = self.router.dispatch(request, response)
File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1278, in default_dispatcher
return route.handler_adapter(request, response)
File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1102, in __call__
return handler.dispatch()
File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 572, in dispatch
return self.handle_exception(e, self.app.debug)
File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 570, in dispatch
return method(*args, **kwargs)
File "/base/data/home/apps/s~project-id/1.402312581449917691/main.py", line 90, in post
response = predict(batch_obj=batch_data_obj)
File "/base/data/home/apps/s~project-id/1.402312581449917691/run_cloud_predict.py", line 88, in predict
response = request.execute()
File "/base/data/home/apps/s~project-id/1.402312581449917691/lib/oauth2client/util.py", line 135, in positional_wrapper
return wrapped(*args, **kwargs)
File "/base/data/home/apps/s~project-id/1.402312581449917691/lib/googleapiclient/http.py", line 835, in execute
method=str(self.method), body=self.body, headers=self.headers)
File "/base/data/home/apps/s~project-id/1.402312581449917691/lib/googleapiclient/http.py", line 162, in _retry_request
resp, content = http.request(uri, method, *args, **kwargs)
File "/base/data/home/apps/s~project-id/1.402312581449917691/lib/oauth2client/client.py", line 631, in new_request
redirections, connection_type)
File "/base/data/home/apps/s~project-id/1.402312581449917691/lib/httplib2/__init__.py", line 1659, in request
(response, content) = self._request(conn, authority, uri, request_uri, method, body, headers, redirections, cachekey)
File "/base/data/home/apps/s~project-id/1.402312581449917691/lib/httplib2/__init__.py", line 1399, in _request
(response, content) = self._conn_request(conn, request_uri, method, body, headers)
File "/base/data/home/apps/s~project-id/1.402312581449917691/lib/httplib2/__init__.py", line 1355, in _conn_request
response = conn.getresponse()
File "/base/data/home/runtimes/python27/python27_dist/lib/python2.7/gae_override/httplib.py", line 526, in getresponse
raise HTTPException(str(e))
HTTPException: Deadline exceeded while waiting for HTTP response from URL: https://ml.googleapis.com/v1/projects/project-id/models/my-model/versions/v3:predict?alt=json
現在我知道，谷歌應用程序引擎對響應60秒限制，這就是爲什麼我做的請求withing任務隊列。我也試過以下的事情：
URLFETCH_DEADLINE = 3600
urlfetch.set_default_fetch_deadline(URLFETCH_DEADLINE)
socket.setdefaulttimeout(URLFETCH_DEADLINE)
我構建的API客戶端這樣的
import httplib2
from googleapiclient import discovery
from oauth2client import service_account
credentials = service_account.ServiceAccountCredentials.from_json_keyfile_name('credentials-file', scopes)
http = httplib2.Http(timeout=36000)
http = credentials.authorize(http)
ml = discovery.build('ml', 'v1', http=http)
request = ml.projects().predict(name=predict_ver_name, body=request_data)
有趣的是，有時會發生超時各地的70（69.9，70，70.1等），有時周圍120秒（119.8， 120.1等），這告訴我這可能需要更多的內部Cloud ML處理。 我通過taskqueue並行執行了幾十個請求。成功的響應時間從幾秒到110秒 我只是好奇，如果有人有類似的經驗，或可以給我建議如何解決這個問題，即什麼是導致期限。