     opts = defaults opts,
         ttl     : 60*60*24  # time in seconds (up to a week)
         dry_run : true      # don't actually close the projects
-        limit   : 5         # number of projects to close simultaneously.
+        limit   : 2         # number of projects to close simultaneously.
         interval: 3000      # space out the project closing to give server a chance to do other things.
         unset_loc : false   # whether to unset the location field in the database after closing the project; if done, then projects will resume later on a random host (which is usually *NOT* desirable).
         cb      : required

                        dbg("\n******************\n**** STATUS: finished #{done}/#{todo}\n**************")
                        if err
                            errors[project_id] = err
                        cb()
            async.mapLimit(projects, opts.limit, f, cb)
    ], (err) ->
        if err

            limit  : 5      # maximum number of projects to replicate at once
            cb     : undefined
        @projects
            cb