# Internal error when downloading data from era5-complete **URL:** \ **Category:** API\ **Tags:** api, cds, era5\ **Created:** [30 May 2024 06:19 UTC](https://forum.ecmwf.int/t/internal-error-when-downloading-data-from-era5-complete/2854 "2024-05-30T06:19:36Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Liting\_Hu](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/l/d9b06d/32.png) [@Liting\_Hu](https://forum.ecmwf.int/u/Liting_Hu)\ **Post date:** [30 May 2024 06:19 UTC](https://forum.ecmwf.int/t/internal-error-when-downloading-data-from-era5-complete/2854/1 "2024-05-30T06:19:36Z")
This occurs when I try to download relative data from reanalysis-era5-complete. When I download the data for one day (e.g. 20240101), it works without problem. However, when I try to retrieve 1 month or more months, it failed and here is my request and the resulting mars errors. 2024-05-30 13:28:44,328 INFO Request is queued 2024-05-30 13:30:45,530 INFO Request is running 2024-05-30 13:32:46,666 INFO Request is failed 2024-05-30 13:32:46,666 ERROR Message: an internal error occurred processing your request 2024-05-30 13:32:46,666 ERROR Reason: 2024-05-30 13:32:46,666 ERROR Traceback (most recent call last): 2024-05-30 13:32:46,666 ERROR File “/opt/cdstoolbox/cdscompute/cdscompute/cdshandlers/services/handler.py”, line 59, in handle\_request 2024-05-30 13:32:46,666 ERROR result = cached(context.method, proc, context, context.args, context.kwargs) 2024-05-30 13:32:46,666 ERROR File “/opt/cdstoolbox/cdscompute/cdscompute/caching.py”, line 108, in cached 2024-05-30 13:32:46,666 ERROR result = proc(context, \*context.args, \*\*context.kwargs) 2024-05-30 13:32:46,666 ERROR File “/opt/cdstoolbox/cdscompute/cdscompute/services.py”, line 124, in **call** 2024-05-30 13:32:46,666 ERROR return p(\*args, \*\*kwargs) 2024-05-30 13:32:46,666 ERROR File “/opt/cdstoolbox/cdscompute/cdscompute/services.py”, line 60, in **call** 2024-05-30 13:32:46,667 ERROR return self.proc(context, \*args, \*\*kwargs) 2024-05-30 13:32:46,667 ERROR File “/home/cds/cdsservices/services/mars/mars.py”, line 53, in external 2024-05-30 13:32:46,667 ERROR return mars(context, request, \*\*kwargs) 2024-05-30 13:32:46,667 ERROR File “/home/cds/cdsservices/services/mars/mars.py”, line 20, in mars 2024-05-30 13:32:46,667 ERROR execute\_mars(context, requests, info) 2024-05-30 13:32:46,667 ERROR File “/home/cds/cdsservices/services/mars/execute\_mars.py”, line 74, in execute\_mars 2024-05-30 13:32:46,667 ERROR raise Exception(error\_lines) 2024-05-30 13:32:46,667 ERROR Exception marsclass: EA dataset: None type: AN levtype: ML levelist: 1/to/137 repres: date: 20230104/to/20230106 resol: 159 stream: OPER area: 90.0/-179.0/-90.0/180.0 time: 00/03/06/09/12/15/18/21 step: 00 expver: 1 number: OFF accuracy: 24 grid: 1.0/1.0 gaussian: target: /data2/LitingHu/flex\_extract/flex\_extract\_v7.1.2/Run/ERA5public01//ANOG\_\_ML.20230104.213003.213004.grb param: 130.128/133.128/131.128/132.128/077.128/246.128/247.128 target: /data2/LitingHu/flex\_extract/flex\_extract\_v7.1.2/Run/ERA5public01//ANOG\_\_ML.20230104.213003.213004.grb RETRIEVE ERA5 WITH CDS API! MARS Request failed! an internal error occurred processing your request. . Traceback (most recent call last): File “/data2/LitingHu/flex\_extract/flex\_extract\_v7.1.2/Source/Python/Classes/MarsRetrieval.py”, line 578, in data\_retrieve attrs, target) File “/home/LitingHu/.local/lib/python3.6/site-packages/cdsapi/api.py”, line 381, in retrieve result = self.\_api(“%s/resources/%s” % (self.url, name), request, “POST”) File “/home/LitingHu/.local/lib/python3.6/site-packages/cdsapi/api.py”, line 538, in \_api % (reply[“error”].get(“message”), reply[“error”].get(“reason”)) Exception: an internal error occurred processing your request. . Does somebody know what’s happening or what I can do? ---
**Author:** ![Petri\_Clusius](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/p/50afbb/32.png) [@Petri\_Clusius](https://forum.ecmwf.int/u/Petri_Clusius)\ **Post date:** [31 May 2024 07:32 UTC](https://forum.ecmwf.int/t/internal-error-when-downloading-data-from-era5-complete/2854/2 "2024-05-31T07:32:09Z")
Hi, Just want to chime in and tell that I’m getting same error, sometimes also “Request disappeared from running requests”. I hope this is just due to migration. I’ve also tried with exact same requests that were working 6 months ago. ---
**Author:** ![Liting\_Hu](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/l/d9b06d/32.png) [@Liting\_Hu](https://forum.ecmwf.int/u/Liting_Hu)\ **Post date:** [22 July 2024 01:48 UTC](https://forum.ecmwf.int/t/internal-error-when-downloading-data-from-era5-complete/2854/3 "2024-07-22T01:48:38Z")
I think it is due to migration. My problem has been solved now and I downloaded the data successfully now! Hope you goes well!