Mongoose批量插入错误

Question

我正在使用mongoose的批量插入方法，即model.collection.insert向MongoDB中插入数据。但是，当执行此方法时，会出现以下错误：

但是，数据已成功插入数据库。有人能告诉我为什么会出现这个错误吗？

{ [MongoError: write operation failed]
  name: 'MongoError',
  message: 'write operation failed',
  driver: true,
  code: 11000,
  writeErrors: 
   [ { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] },
     { code: [Getter],
       index: [Getter],
       errmsg: [Getter],
       getOperation: [Function],
       toJSON: [Function],
       toString: [Function] } ] }

这里是代码：

mOfferCake.collection.insert(jsonArr, { continueOnError: true, keepGoing: true }, onInsert);

1) mOfferCake是模型，以下是代码：

var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var offerCakeSchema = new Schema({
    offer_id: {
        type: Number,
        unique: true
    }
});

var datetime = new Date();
var mm = datetime.getMonth() + 1;
if (mm < 10) {
    mm = '0' + mm;
}
var dd = datetime.getDate();
if (dd < 10) {
    dd = '0' + dd;
}
var yyyy = datetime.getFullYear();
var collectionName = 'MX_' + yyyy + '_' + mm + '_' + dd;
module.exports = mongoose.model(collectionName, offerCakeSchema);

2) jsonArr是JSON对象的数组

3) onInsert是回调函数

function onInsert(err, docs) {
if (err) {
console.log(err);
}
else {
    console.error("Cron bulk insert Successfully");
}

节点版本：v4.5.0 mongoose 版本：4.6.5

- Vikalp

Answer 1

代码：11000，

E11000 表示重复键错误索引。

您可能在插入文档时使用了已经存在于集合中的 _id。

- Mateusz Soltysik

---

每次我插入新的数据集时，_id都是自动生成的。 - Vikalp