FTIndex on MacOSX

For a local database on MacOSX with Notes 9.0.1 FP3, I would like to create an FTIndex.

I can enable FTIndex settings in the DB properties, but the Index itself will not be created.

Log.nsf shows:

Error full text indexing document NT00000000 (rc=268) File is in use by another program
Error full text indexing File is in use by another program

There is no Antivirus software blocking access, so what could be the reason for this behaviour?

Subject: Same issue is sometimes seen on Windows and Linux

I’ve noticed that clicking on the button to delete an index does not always remove the full text index subfolder on Windows and Linux, and this results in the same error as you saw on MacOSX.

Subject: Solved

It seems I have found the issue myself.

There was an old FTIndex folder in place which was not deleted when I did remove the FTIndex from the database itself.

Deleting the “.ft” folder, or renaming it solved the issue.