geemap.ee_export_image() report "An error occurred while downloading."
Closed this issue · 6 comments
wurenzhe163 commented
Environment Information
windows11 , python==3.8.8 , geemap==0.19.0
# Normal operation
geemap.ee_export_image(
s2_sr_cld_col.median().select(['B1','B2','B3','B4','B5']),
filename=filename,
scale=10, region=AOI, file_per_band=True,timeout=500)
geemap.ee_export_image(
s2_sr_cld_col.first().select(['B1','B2','B3','B4','B5','B6','B7','B8','B8A']),
filename=filename,
scale=10, region=AOI, file_per_band=True,timeout=500)
# !!An error occurred!!
geemap.ee_export_image(
s2_sr_cld_col.median().select(['B1','B2','B3','B4','B5','B6','B7','B8','B8A']),
filename=filename,
scale=10, region=AOI, file_per_band=True,timeout=500)Description
I encountered a strange problem when using the xxx function. I tried to test it in different ways to find out if I was using it improperly. I found that the error was related to the size of the image, but the image itself was not very large. This error occurs when median/max/min etc. reducers are used.
Here is the message that reports the error
Generating URL ...
Downloading data from https://earthengine.googleapis.com/v1alpha/projects/earthengine-legacy/thumbnails/2ead3b479203b02d1d3de61ce8459dcb-4952ef6c7a5bca893df8ca31e8f41cc0:getPixels
Please wait ...
An error occurred while downloading.
---------------------------------------------------------------------------
RemoteDisconnected Traceback (most recent call last)
File D:\Code_base\anaconda\envs\GEE\lib\site-packages\urllib3\connectionpool.py:670, in HTTPConnectionPool.urlopen(self, method, url, body, headers, retries, redirect, assert_same_host, timeout, pool_timeout, release_conn, chunked, body_pos, **response_kw)
669 # Make the request on the httplib connection object.
--> 670 httplib_response = self._make_request(
671 conn,
672 method,
673 url,
674 timeout=timeout_obj,
675 body=body,
676 headers=headers,
677 chunked=chunked,
678 )
680 # If we're going to release the connection in ``finally:``, then
681 # the response doesn't need to know about the connection. Otherwise
682 # it will also try to release it and we'll have a double-release
683 # mess.
File D:\Code_base\anaconda\envs\GEE\lib\site-packages\urllib3\connectionpool.py:426, in HTTPConnectionPool._make_request(self, conn, method, url, timeout, chunked, **httplib_request_kw)
422 except BaseException as e:
423 # Remove the TypeError from the exception chain in
424 # Python 3 (including for exceptions like SystemExit).
425 # Otherwise it looks like a bug in the code.
--> 426 six.raise_from(e, None)
427 except (SocketTimeout, BaseSSLError, SocketError) as e:
File <string>:3, in raise_from(value, from_value)
File D:\Code_base\anaconda\envs\GEE\lib\site-packages\urllib3\connectionpool.py:421, in HTTPConnectionPool._make_request(self, conn, method, url, timeout, chunked, **httplib_request_kw)
420 try:
--> 421 httplib_response = conn.getresponse()
422 except BaseException as e:
423 # Remove the TypeError from the exception chain in
424 # Python 3 (including for exceptions like SystemExit).
425 # Otherwise it looks like a bug in the code.
File D:\Code_base\anaconda\envs\GEE\lib\http\client.py:1348, in HTTPConnection.getresponse(self)
1347 try:
-> 1348 response.begin()
1349 except ConnectionError:
File D:\Code_base\anaconda\envs\GEE\lib\http\client.py:316, in HTTPResponse.begin(self)
315 while True:
--> 316 version, status, reason = self._read_status()
317 if status != CONTINUE:
File D:\Code_base\anaconda\envs\GEE\lib\http\client.py:285, in HTTPResponse._read_status(self)
282 if not line:
283 # Presumably, the server closed the connection before
284 # sending a valid response.
--> 285 raise RemoteDisconnected("Remote end closed connection without"
286 " response")
287 try:
RemoteDisconnected: Remote end closed connection without response
During handling of the above exception, another exception occurred:
MaxRetryError Traceback (most recent call last)
File D:\Code_base\anaconda\envs\GEE\lib\site-packages\requests\adapters.py:439, in HTTPAdapter.send(self, request, stream, timeout, verify, cert, proxies)
438 if not chunked:
--> 439 resp = conn.urlopen(
440 method=request.method,
441 url=url,
442 body=request.body,
443 headers=request.headers,
444 redirect=False,
445 assert_same_host=False,
446 preload_content=False,
447 decode_content=False,
448 retries=self.max_retries,
449 timeout=timeout
450 )
452 # Send the request.
453 else:
File D:\Code_base\anaconda\envs\GEE\lib\site-packages\urllib3\connectionpool.py:726, in HTTPConnectionPool.urlopen(self, method, url, body, headers, retries, redirect, assert_same_host, timeout, pool_timeout, release_conn, chunked, body_pos, **response_kw)
724 e = ProtocolError("Connection aborted.", e)
--> 726 retries = retries.increment(
727 method, url, error=e, _pool=self, _stacktrace=sys.exc_info()[2]
728 )
729 retries.sleep()
File D:\Code_base\anaconda\envs\GEE\lib\site-packages\urllib3\util\retry.py:446, in Retry.increment(self, method, url, response, error, _pool, _stacktrace)
445 if new_retry.is_exhausted():
--> 446 raise MaxRetryError(_pool, url, error or ResponseError(cause))
448 log.debug("Incremented Retry for (url='%s'): %r", url, new_retry)
MaxRetryError: HTTPSConnectionPool(host='earthengine.googleapis.com', port=443): Max retries exceeded with url: /v1alpha/projects/earthengine-legacy/thumbnails/2ead3b479203b02d1d3de61ce8459dcb-4952ef6c7a5bca893df8ca31e8f41cc0:getPixels (Caused by ProxyError('Cannot connect to proxy.', RemoteDisconnected('Remote end closed connection without response')))
During handling of the above exception, another exception occurred:
ProxyError Traceback (most recent call last)
File D:\Code_base\anaconda\envs\GEE\lib\site-packages\geemap\common.py:2296, in ee_export_image(ee_object, filename, scale, crs, crs_transform, region, dimensions, file_per_band, format, unmask_value, timeout, proxies)
2295 print(f"Downloading data from {url}\nPlease wait ...")
-> 2296 r = requests.get(url, stream=True, timeout=timeout, proxies=proxies)
2298 if r.status_code != 200:
File D:\Code_base\anaconda\envs\GEE\lib\site-packages\requests\api.py:76, in get(url, params, **kwargs)
75 kwargs.setdefault('allow_redirects', True)
---> 76 return request('get', url, params=params, **kwargs)
File D:\Code_base\anaconda\envs\GEE\lib\site-packages\requests\api.py:61, in request(method, url, **kwargs)
60 with sessions.Session() as session:
---> 61 return session.request(method=method, url=url, **kwargs)
File D:\Code_base\anaconda\envs\GEE\lib\site-packages\requests\sessions.py:530, in Session.request(self, method, url, params, data, headers, cookies, files, auth, timeout, allow_redirects, proxies, hooks, stream, verify, cert, json)
529 send_kwargs.update(settings)
--> 530 resp = self.send(prep, **send_kwargs)
532 return resp
File D:\Code_base\anaconda\envs\GEE\lib\site-packages\requests\sessions.py:643, in Session.send(self, request, **kwargs)
642 # Send the request
--> 643 r = adapter.send(request, **kwargs)
645 # Total elapsed time of the request (approximately)
File D:\Code_base\anaconda\envs\GEE\lib\site-packages\requests\adapters.py:510, in HTTPAdapter.send(self, request, stream, timeout, verify, cert, proxies)
509 if isinstance(e.reason, _ProxyError):
--> 510 raise ProxyError(e, request=request)
512 if isinstance(e.reason, _SSLError):
513 # This branch is for urllib3 v1.22 and later.
ProxyError: HTTPSConnectionPool(host='earthengine.googleapis.com', port=443): Max retries exceeded with url: /v1alpha/projects/earthengine-legacy/thumbnails/2ead3b479203b02d1d3de61ce8459dcb-4952ef6c7a5bca893df8ca31e8f41cc0:getPixels (Caused by ProxyError('Cannot connect to proxy.', RemoteDisconnected('Remote end closed connection without response')))
During handling of the above exception, another exception occurred:
UnboundLocalError Traceback (most recent call last)
Cell In [20], line 1
----> 1 geemap.ee_export_image(
2 s2_sr_cld_col.median().select(['B1','B2','B3','B4','B5','B6','B7','B8','B8A']),
3 filename=filename,
4 scale=10, region=AOI, file_per_band=True,timeout=500)
File D:\Code_base\anaconda\envs\GEE\lib\site-packages\geemap\common.py:2308, in ee_export_image(ee_object, filename, scale, crs, crs_transform, region, dimensions, file_per_band, format, unmask_value, timeout, proxies)
2306 except Exception as e:
2307 print("An error occurred while downloading.")
-> 2308 print(r.json()["error"]["message"])
2309 return
2311 try:
UnboundLocalError: local variable 'r' referenced before assignment
giswqs commented
Are you using VPN? The error message shows that it is a connection timeout problem. This is not a geemap problem.
wurenzhe163 commented
I used VPN and was able to output other images normally, but only the images obtained by the median/max/min method could not be output normally.
In above I mentioned three inputs and outputs, the first two are able to output normally, only the third will have this problem, I also feel very confused
giswqs commented
Try Google Colab. I am 100% sure if it is your network problem.
wurenzhe163 commented
It does work well with Colab, but I'm still confused as to why jupyter can export some of the data, but not the data obtained from median/max/min. Thank you very much and have a nice life!
wurenzhe163 commented
Solve
I found out that the reason for this is that the image type obtained by median/max/min is double, so converting it to float or int will output it normally. I'm sorry for the disturbance.
giswqs commented
Thank you for sharing the solution