when node.js connects to mongodb and executes MongoClient.connect (), it is very fast in the local environment, but very slow to get online, which takes more than 1 second, as shown below: var express = require( express ); var router = express.Router...
function searchData(){ NodeInfo.find({}, function(err, res){ if(err) { console.log("Error:" + err); } console.log(JSON.stringify(res,null,2)); 1 return res; }) } let a = searchData(); conso...
simulate a scenario: A single-node backup of MongoDB is done at 11:00, and the backup ends at 11:10, and the backup data at this time is 11:10. accidentally delete data at 11:20 in this case, we can restore the data to 11:10 through the backup data ...
question: at present, what images are stored in mongodb is only a relative drive, so how to provide a complete image path to the server when returning to the front end? in the database: products img1.png actual returned data: http: xxx.xxx.xxx.xx...
2018-06-01T21:50:27.381+1000 I STORAGE [initandlisten] WiredTiger message [1527853827:381260][6025:0x7fffb1251380], txn-recover: Recovering log 88 through 89 2018-06-01T21:50:27.448+1000 I STORAGE [initandlisten] WiredTiger message [1527853827:448472][...
linux system starts after installing MongoDB: . bin mongod: error while loading shared libraries: libssl.so.10: cannot open shared object file: No such file or directory ...
the bin directory was not found on the server. How to use the command mongodump-h for database backup. Thank you ...
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I want to update the data of a field in the mongodb database in batches. The database is as follows. Use https: www.baidu.com to 127.0.0.1 in the database. { "_id" : ObjectId("5aaf69069c49ac25b89903b5"), "title" :...
the computer is a WIN 10 system I follow this tutorial to install mongoDB, http: www.runoob.com mongodb. but as soon as you enter the mongo link. Just report this error has been reinstalled several times, but it has not been solved. also chan...
the layout scheme I use is this: mobile page adaptive solution-rem layout (advanced version, with source code example) width adaptation of mobile elements element width changes when the page is refreshed refreshes the page and does nothing else ...
I d like to ask how to use fileinput to open a file and how to use jcrop to immediately pop up the cropping interface instead of previewing the picture immediately. ...
The code is written in react. The problem is this: 1, chrome, mouse down-> move. The code that triggers ontouchstart, but does not trigger ontouchmove is as follows: who knows what the problem may be? handleDownTest(){ console.log( handleDownTes...
trait Base object A extends Base object B extends Base object C extends Base class D extents Base object Base { TODO trait Base object TODO akka actor event Base } when using akka to throw a Event event, I want to in...
function Animal(name) { this.name = name this._init() this._add() } Animal.prototype._init = function() { this.food = [] console.log(this.food) } Animal.prototype._add = function() { console.log(1) this.food.push( fish ...