These changes remove the temporary file limitation from import-ldif. Several other changes were made also:

- the cleaner is run at the end of the import

- the cleaner is run periodically during import if database eviction is detected

- the substring indexes are buffered to help boost performance during substring index processing

- the import files have been moved into its own package  org.opends.server.backends.jeb.importLDIF

- the work threads do most of the processing

- import aborts if a work thread throws a runtime exception

- messages for the various stages of the import have been added (e.g. environment close)

The only functionality missing is VLV index processing. Also, there is a  2G limit on the
max entry ID value that can be used in a substring index.

The following configuration attributes have been removed:

- ds-cfg-import-temp-directory
- ds-cfg-import-buffer-size
- ds-cfg-import-pass-size

The should be removed from your config.ldif file.