TB's of .part files - MySQL server has gone away & Exception: HTTP\/1.1 400 expected filesize

Hey,

maybe it helps to update to the recent ownCloud Server 10.0.10 Release first?

I think it could be possible that the only pointer could be to check/search existing threads and possible existing solutions within these. Those messages seems to be coming up quite frequently, even outside of ownCloud.

https://dev.mysql.com/doc/refman/5.7/en/gone-away.html

https://doc.owncloud.org/server/latest/admin_manual/configuration/database/linux_database_configuration.html#how-to-workaround-general-error-2006-mysql-server-has-gone-away

https://www.garron.me/en/bits/file-is-not-within-the-allowed-path.html