On unix or linux servers, deleting .ft directories while Domino is running can cause problems.
In some cases, Domino is still accessing already deleted files, which will prohibit fulltext index rebuild and lead to error messages like this:
Error full text indexing document NT00000000 ....... (rc=268) File is in use by another program
To solve this:
- Shutdown server
- Delete the affected .ft directory
- Restart Domino server
- Rebuild fulltext index