Eventually the process will die if you leave the browser open and
But have you tried to just close the upload process/dataset in your
history? Do this by clicking the "X" on the top right of the dataset
in the history pane. I
If that seems to be stuck in your browser, next you could try to
the entire history by using the history pane's pull down Options menu
and selecting the last item "Delete".
Please let us know if one of these does not resolve the issue,
Sorry for misunderstanding your question the first time ... you are
asking about a library upload (not a dataset).
In this case, you will have to manually change the job state in the
database to 'error' to get Galaxy to stop recovering it at start up.
Our developers are curious whether you are using cluster job runner
a URL or server directory upload though, since otherwise the job
have failed on its own. If there is a case through Galaxy's main tools
where it doesn't fail, we'd like to track that down if you have time