function cleanUpLong(max_running_secs) {
    var currentOps = db.currentOp({
            $and: [{ op: "query" },
             { msg: { $exists: false }   }, // not a sharding operation!
                { 
                 secs_running: { $gt: max_running_secs }
            },
            {"ns": "backstage.action_loc" }]
    });
    currentOps.inprog.forEach(function (op) {
        db.killOp(op.opid)
    })
}