Some dataset in our open data site - are not downloading?

Question

Several datasets at our open data site – are not downloading – but not all  - some are very small some large?

https://data-seattlecitygis.opendata.arcgis.com/datasets/2010-flow-counts

https://data-seattlecitygis.opendata.arcgis.com/datasets/collisions

https://data-seattlecitygis.opendata.arcgis.com/datasets/streetcar-lines

The client receives this error ”Status: An error occurred. Download failed.”

I’m receiving this response both 500 & 502 messages (HTTP/1.1 502 Bad Gateway)  - in the response header
 {"processingTime":"13.499166666666667 minutes",
 "status":"Failed",
 "generating":{},
 "error":{"timestamp":"2018-04-13T14:39:00.808Z",
 "message":"Request for service information failed",
 "request":"https://gisdata.seattle.gov/server/rest/services/Hosted/SDOT_Traffic_Volume/FeatureServer?f=json ",
 "code":500}}

The problematic services/data appear to work when hosted at AGOL – and that might be our temporary fix.

Thank for any insight:

KevinDunlop · Answer

For the large datasets, we encounter similar issues.  The problem lie in that shapefiles have a 4GB limit on size and is the default format for non-host services.  Our contours came in at around 9 GB so we had to break the layer up into smaller subset feature classes.

Anonymous User · Answer

I was able to download these over the HTTPS version of the site. Services that do not support HTTPS will have issues if you try accessing them from an HTTPS site.

I can't be sure that was the issue because I am a bit late to following up on this one. If you have other questions, please let us know!

IanMooser · Answer

For now - I'm to use http: vs https - It initially seems to have been successful with our problematic open data sets.  I rather use https but I will wait and see if we can diagnose anything further...