SathishkumarSubramanian edited a comment on issue #9597:
URL: https://github.com/apache/superset/issues/9597#issuecomment-881924613


   Cache Warmup is not working on my superset1.2 (docker, ubuntu 18.04), my 
superset log is below,  
   Is this known defect in current version, Any suggestion on this or 
workaround?
   
   > superset_worker          | [2021-07-17 16:20:00,031: 
INFO/ForkPoolWorker-1] cache-warmup[e9f826a6-794a-46e5-b6b4-3e2122c7ae03]: 
Loading strategy
   superset_worker          | [2021-07-17 16:20:00,031: INFO/ForkPoolWorker-1] 
cache-warmup[e9f826a6-794a-46e5-b6b4-3e2122c7ae03]: Loading 
TopNDashboardsStrategy
   superset_worker          | [2021-07-17 16:20:00,032: INFO/ForkPoolWorker-1] 
cache-warmup[e9f826a6-794a-46e5-b6b4-3e2122c7ae03]: Success!
   superset_worker          | [2021-07-17 16:20:00,049: INFO/ForkPoolWorker-1] 
cache-warmup[e9f826a6-794a-46e5-b6b4-3e2122c7ae03]: Fetching 
http://0.0.0.0:8088/superset/explore/?form_data=%7B%22slice_id%22%3A%20164%7D
   superset_worker          | [2021-07-17 16:20:00,051: ERROR/ForkPoolWorker-1] 
cache-warmup[e9f826a6-794a-46e5-b6b4-3e2122c7ae03]: Error warming up cache!
   superset_worker          | Traceback (most recent call last):
   superset_worker          |   File 
"/usr/local/lib/python3.7/urllib/request.py", line 1350, in do_open
   superset_worker          |     
encode_chunked=req.has_header('Transfer-encoding'))
   superset_worker          |   File "/usr/local/lib/python3.7/http/client.py", 
line 1277, in request
   superset_worker          |     self._send_request(method, url, body, 
headers, encode_chunked)
   superset_worker          |   File "/usr/local/lib/python3.7/http/client.py", 
line 1323, in _send_request
   superset_worker          |     self.endheaders(body, 
encode_chunked=encode_chunked)
   superset_worker          |   File "/usr/local/lib/python3.7/http/client.py", 
line 1272, in endheaders
   superset_worker          |     self._send_output(message_body, 
encode_chunked=encode_chunked)
   superset_worker          |   File "/usr/local/lib/python3.7/http/client.py", 
line 1032, in _send_output
   superset_worker          |     self.send(msg)
   superset_worker          |   File "/usr/local/lib/python3.7/http/client.py", 
line 972, in send
   superset_worker          |     self.connect()
   superset_worker          |   File "/usr/local/lib/python3.7/http/client.py", 
line 944, in connect
   superset_worker          |     (self.host,self.port), self.timeout, 
self.source_address)
   superset_worker          |   File "/usr/local/lib/python3.7/socket.py", line 
728, in create_connection
   superset_worker          |     raise err
   superset_worker          |   File "/usr/local/lib/python3.7/socket.py", line 
716, in create_connection
   superset_worker          |     sock.connect(sa)
   superset_worker          | ConnectionRefusedError: [Errno 111] Connection 
refused
   superset_worker          |
   superset_worker          | During handling of the above exception, another 
exception occurred:
   superset_worker          |
   superset_worker          | Traceback (most recent call last):
   superset_worker          |   File "/app/superset/tasks/cache.py", line 291, 
in cache_warmup
   superset_worker          |     request.urlopen(url)
   superset_worker          |   File 
"/usr/local/lib/python3.7/urllib/request.py", line 222, in urlopen
   superset_worker          |     return opener.open(url, data, timeout)
   superset_worker          |   File 
"/usr/local/lib/python3.7/urllib/request.py", line 525, in open
   superset_worker          |     response = self._open(req, data)
   superset_worker          |   File 
"/usr/local/lib/python3.7/urllib/request.py", line 543, in _open
   superset_worker          |     '_open', req)
   superset_worker          |   File 
"/usr/local/lib/python3.7/urllib/request.py", line 503, in _call_chain
   superset_worker          |     result = func(*args)
   superset_worker          |   File 
"/usr/local/lib/python3.7/urllib/request.py", line 1378, in http_open
   superset_worker          |     return 
self.do_open(http.client.HTTPConnection, req)
   superset_worker          |   File 
"/usr/local/lib/python3.7/urllib/request.py", line 1352, in do_open
   superset_worker          |     raise URLError(err)
   superset_worker          | urllib.error.URLError: <urlopen error [Errno 111] 
Connection refused>
   superset_worker          | [2021-07-17 16:20:00,054: INFO/ForkPoolWorker-2] 
Task reports.scheduler[8a25cd68-3d17-4969-bb69-752aee1fb177] succeeded in 
0.02081612199981464s: None
   superset_worker          | [2021-07-17 16:20:00,055: INFO/ForkPoolWorker-1] 
Task cache-warmup[e9f826a6-794a-46e5-b6b4-3e2122c7ae03] succeeded in 
0.024644025999805308s: {'success': [], 'errors': 
['http://0.0.0.0:8088/superset/explore/?form_data=%7B%22slice_id%22%3A%20164%7D']}
   


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