So, i think, i found a solution
the developers from PLUpload say's: its not realy clear with the chunk size, sometime, it works, sometimes not. If i understand everything correct, the code split the file into some parts with the defined chunk size, normalize in the case of very large images or if you have a bad connection and put all parts together after the upload
Defined chunk size in OFA was 1mb, defined Default Chunk Size in PLUpload is 204798 Bytes (overwritten from OFA), Filesize = 4mb, max_upload_size on the server = 40 Mb
that makes 4 parts with 1 mb for every part, the first part was uploaded, for the rest, you get the error "file already exist"
maybe, it has to do with the second step inside of OFA - build a thumbnail in a different folder, but i dont know.
In the PLUpload-Forum, some users reported, that they work with a chunk size of 5 Mb and a file size from 300 Mb without problem, but others have the same problems with the broken image
i use now the chunk size like my defined max_file_size in
modify_item.php of OFA // Lines 694 + 695
Originalcode:
max_file_size: '<?php echo $max_file_size; ?>mb',
chunk_size: '1mb',
change to
max_file_size: '<?php echo $max_file_size; ?>mb',
chunk_size: '<?php echo $max_file_size; ?>mb',
maybe, somewhere in the code is a switch to disable the chunk function
P.S.: lastest version from
PLUload has the same problems
i'm not sure - is this now a good solution or not, but maybe, it show's the way for Dietmar