problem description
official documentation shardKey configuration instructions:
configure the code according to the official document as follows: (the code has been deleted)
new Schema( {
eId: { type: String, default: null },
eArticleId: { type: NumberLong },
title: { type: String },
type: { type: String, default: "article" },
author: { type: String, default: null },
}, {
shardKey: {shardKey: {eArticleId: 1}}, // eArticleId
versionKey: false
});
const name = "article";
let Article = mongoConn.model(name, userSchema, name);
async function updateDoc(){
let doc = await Article.findOneAndUpdate({_id: "5a53e3a98fc5e3000143f500"}, {$set: {level: 1}}).exec()
console.log("doc = ", doc);
} get the error message directly: MongoError: query for sharded findAndModify must have shardkey .
I know that you can update successfully with the slice key, but according to the official document, as long as you configure the shardKey item of schema, you can do without the slice key for the update operation. I wonder if I understand it correctly? But I repeatedly test, do not take the key to update always report the above errors, I do not know if there is a good way to deal with it?