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Starspot rotational modulation forward model
https://spotdot.readthedocs.io
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LightCurve loading fails the first time (sometimes...) #43

Open jejjohnson opened 3 years ago

jejjohnson commented 3 years ago

Issue

So when I first ran the command to fetch the light curve within a python script, I got a weird error message that gave me the impression that there was a network issue. 

lcf = search_lightcurvefile('HD 222259 A', mission='TESS', sector=27).download_all()

But when I ran the same command, I didn't receive an error message.

Error Message

```bash Traceback (most recent call last): File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/urllib3/connection.py", line 159, in _new_conn conn = connection.create_connection( File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/urllib3/util/connection.py", line 61, in create_connection for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM): File "/opt/conda/envs/dotenv_gcp/lib/python3.8/socket.py", line 918, in getaddrinfo for res in _socket.getaddrinfo(host, port, family, type, proto, flags): socket.gaierror: [Errno -2] Name or service not known During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/urllib3/connectionpool.py", line 670, in urlopen httplib_response = self._make_request( File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/urllib3/connectionpool.py", line 381, in _make_request self._validate_conn(conn) File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/urllib3/connectionpool.py", line 978, in _validate_conn conn.connect() File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/urllib3/connection.py", line 309, in connect conn = self._new_conn() File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/urllib3/connection.py", line 171, in _new_conn raise NewConnectionError( urllib3.exceptions.NewConnectionError: : Failed to establish a new connection: [Errno -2] Name or service not known During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/requests/adapters.py", line 439, in send resp = conn.urlopen( File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/urllib3/connectionpool.py", line 726, in urlopen retries = retries.increment( File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/urllib3/util/retry.py", line 446, in increment raise MaxRetryError(_pool, url, error or ResponseError(cause)) urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='mast.stsci.edu', port=443): Max retries exceeded with url: /api/v0.1/Download/file?uri=mast:TESS/product/tess2020186164531-s0027-0000000410214986-0189-a_fast-lc.fits (Caused by NewConnectionError(': Failed to establish a new connection: [Errno -2] Name or service not known')) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "scripts/demo.py", line 56, in main(args) File "scripts/demo.py", line 24, in main lcf = search_lightcurvefile( File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/lightkurve/utils.py", line 479, in wrapper return f(*args, **kwargs) File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/lightkurve/search.py", line 290, in download_all products.append(self._download_one(table=self.table[idx:idx+1], File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/lightkurve/search.py", line 175, in _download_one path = Observations.download_products(table[:1], mrp_only=False, File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/astroquery/mast/observations.py", line 699, in download_products manifest = self._download_files(products, base_dir, cache, cloud_only) File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/astroquery/mast/observations.py", line 574, in _download_files self._download_file(data_url, local_path, File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/astroquery/query.py", line 359, in _download_file response = self._session.request(method, url, File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/requests/sessions.py", line 530, in request resp = self.send(prep, **send_kwargs) File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/requests/sessions.py", line 643, in send r = adapter.send(request, **kwargs) File "/opt/conda/envs/dotenv_gcp/lib/python3.8/site-packages/requests/adapters.py", line 516, in send raise ConnectionError(e, request=request) requests.exceptions.ConnectionError: HTTPSConnectionPool(host='mast.stsci.edu', port=443): Max retries exceeded with url: /api/v0.1/Download/file?uri=mast:TESS/product/tess2020186164531-s0027-0000000410214986-0189-a_fast-lc.fits (Caused by NewConnectionError(': Failed to establish a new connection: [Errno -2] Name or service not known')) ```

Fix

Ran it a second time and didn't get an error. I haven't been able to recreate the issue. My worry is that this might show up during the DockerFile sweeps...

bmorris3 commented 3 years ago

My fear is that this might be a transient DNS issue or something else that's tricky to debug. Some things to consider: