Hi all.

Every once in a while one of my DNN sites refues to work (Error message "Invalid Object ID" and all containers will be displayed empty). When restoring the database everything works fine again.

I tried to figure the problem by searching this forum for that kind of problem, but wasn't successful.

While investigating further I figured massive changes in the Files and Folders table of the DNN database before and after the problem occurs. It seems that a lot of folders where created newly with new ids and also a lot of files with the new folder ids.

There are some other minor changes in other tables (AnonymousUsers and SearchItem) but I suspect the both Files and Folders table to be responsible for my problem.

Does anybody know a reason, why these both tables get re-organized ? Is this connected to host setting "Auto-Sync-File-System" which is enabled for my site ?

Is it possible that this re-organization fails and leaves corrupt Files and Folders tables behind ?

Kind regards, Tom.

Thanks for your reply Erik.

I see the identical files and folders being newly created (with new ids) in the table.

So if the table content is just a snapshot from the filesystem (as you say) the files and folders where not accassible for DNN for a certain period of time, so that DNN has removed them from the database ? Later on, when the filesystem becomes available again, they will automatically be inserted again ?

Is that's what you are saying ?

Will unchecking the "sync" checkbox in the host settings stop this automatism ?

Regards, Tom.