Node.JS Mongo DB驱动程序没有拆分批量插入？

我正在尝试collection.insert使用Node.JS的标准Mongo DB驱动程序通过一次调用插入大约100k文档:

var MongoClient = require('mongodb').MongoClient;

MongoClient.connect('mongodb://localhost/testdb', function(err, db) {
    var collection = db.collection('testcollection');
    var docs = [];

    var doc = {
        str: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam sit amet urna consequat quam pharetra sagittis vitae at nulla. Suspendisse non felis sollicitudin, condimentum urna eu, congue massa. Nam arcu dui, sodales eget auctor nec, ullamcorper in turpis. Praesent sit amet purus mi. Mauris egestas sapien magna, a mattis tellus luctus et. Suspendisse potenti. Nam posuere neque at vulputate ornare. Nunc mollis lorem est, at porttitor augue sodales sed. Ut dui sapien, fermentum eu laoreet sed, sodales et augue. Aliquam erat volutpat.'
    };

    for (var i = 0; i < 100000; i++) {
        docs[i] = doc;
    }

    collection.insert(docs, function(err) {
        throw err;
    });
});

但是,我收到以下错误:

/var/node/testproject/node_modules/mongodb/lib/mongodb/connection/base.js:242
        throw message;
              ^
Error: Document exceeds maximum allowed bson size of 16777216 bytes
    at InsertCommand.toBinary (/var/node/testproject/node_modules/mongodb/lib/mongodb/commands/insert_command.js:86:11)
    at Connection.write (/var/node/testproject/node_modules/mongodb/lib/mongodb/connection/connection.js:230:42)
    at __executeInsertCommand (/var/node/testproject/node_modules/mongodb/lib/mongodb/db.js:1857:14)
    at Db._executeInsertCommand (/var/node/testproject/node_modules/mongodb/lib/mongodb/db.js:1930:5)
    at insertAll (/var/node/testproject/node_modules/mongodb/lib/mongodb/collection/core.js:205:13)
    at Collection.insert (/var/node/testproject/node_modules/mongodb/lib/mongodb/collection/core.js:35:3)
    at /var/node/testproject/dbtest.js:15:16
    at /var/node/testproject/node_modules/mongodb/lib/mongodb/mongo_client.js:431:11
    at process._tickCallback (node.js:664:11)

由于单个文档明显小于16 MB并且给定堆栈跟踪,因此驱动程序似乎不会自动拆分命令.我如何解决这个问题,最好不要自己编码？