Data upload via web UI fails - Logs

Dear openBIS community,

I am using an openBIS v20.10.5 docker container. I tried data upload via web UI (as shown here: The upload fails consistently, even with adjustments to dss_etc/ Logs in dss_logs are informative, while as_logs logs show only a “Cache clearance execution” entry. The only logs are in datastore_server/log-registrations/succeeded/ (not failed).

cat '2023-01-10_10-56-52-315_JythonIngestionService_2023-01-10_10-56-52-314_Service Conversations-T6::1673348212308-451712491 (ch.systemsx.cisd.openbis.generic.shared.IDataStoreService)_fileserialized.log'
2023-01-10 10:56:52 Start registration
2023-01-10 10:56:52 Prepared registration of 0 data sets:

2023-01-10 10:56:52 Preparation ready
2023-01-10 10:56:52 In pre-commit state; no data needed to be moved.
2023-01-10 10:56:52 About to register metadata with AS: registrationId(34)
2023-01-10 10:56:52 Will try to register data in openbis.
2023-01-10 10:56:52 No entities have been created or updated
2023-01-10 10:56:52 Data has been registered with the openBIS Application Server.
2023-01-10 10:56:52 Storage processors have committed.
2023-01-10 10:56:52 Data has been moved to the final store.

How can I further navigate this “upload failed” behaviour?

Thank you and best regards,
Scientific IT, Fraunhofer IFAM

I would document my work on this issue for future use. My advice, when using docker.

Best regards,