Hello. Did you manage to solve this without having to restart the service every time? I have a similar problem, but not with Data Extraction, it's a service that we published from a python script. It works fine in ArcMap, we published it and it works fine at firts, but late in the day it gives an error related to the geodatabase connection. If I restart the service it works fine again. I cannot restart every time because the services is not used just once or twice a day, the idea is to run it several times a day by different users. Thanks!
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