Comment 4 for bug 703873

At the moment the importers will already limit the number of revisions they process each time.

Bazaar has a traffic counter (used for progress reporting mainly) that bzr core, bzr-svn, bzr-git and bzr-hg all feed into. It should be possible to use this to kill the importer if there was too much traffic.

Similarly, a simple time-based watch dog might also be useful. How CPU vs network intensive some of these operations are varies wildly though, so I'm not sure how useful this would be in practice.