Thanks Gerd, I can try the --problem-file option next time for some large National Parks that cover multiple tiles. See for example Peak District National Park (rel 2176657) in the attachment. It would be more convenient to list key=value combinations instead of way or rel id's in the problem file list. For instance boundary=national_park and not rel 2176657, rel .... Also the problem with r2478 remains, maybe Wanmil can have a look at it?
I am not sure what you want to have, but you can still use the --problem-file option to tell splitter to keep selected rels or ways complete. You can also change line 1000 in MultiTileProcessor.java and remove the comment that excludes boundaries from being kept complete and compile your own version of splitter.
Does that help?
Gerd
