All Questions
5,911
questions
-2
votes
0
answers
17
views
MongoDB inserts super slow after indexing [closed]
I have a MongoDB collection that is almost 1 TB in size. The collection already has indexes in place for faster querying. However, when I try to add new data, the insertion process becomes extremely ...
-2
votes
0
answers
27
views
Designing a MongoDB Schema for Efficiently Managing and Querying Ordered Sequential Values [closed]
I have a mongoDB collection findings which contains the following documents
{
name: "finding1",
group: "group1"
},
{
name: "finding2",
group: "group1"
},...
- 161
0
votes
1
answer
35
views
Setting primary key in Realm MongoDB
I am trying to make a collection of cocktail recipes. In this case, every recipeName field in Realm object is unique. Then can I set recipeName to be the primary key so that I can call useObject() ...
- 9
0
votes
1
answer
53
views
Data Not Updating on Dashboard in Production Environment
I have a web application with payment system integration, and I am facing an issue where the payment data is not updating in the dashboard in the production environment, although it works fine in ...
- 1
0
votes
0
answers
45
views
Database integrity in mongo DB with hooks
I am trying to use mongo DB for my MERN app. So far I have used SQL databases where database integrity has never been an issue.
But mongo being No-SQL does not support foreign key relation which is ...
0
votes
0
answers
25
views
How do I continuously fetch the last N documents from mongodb? [duplicate]
I can fetch the last 10 documents like this:
collection.find({}).sort({_id:1}).limit(10).toArray();
I am building an express api to continuously fetch the next N. For example, Get request with arg=1 ...
- 2,085
0
votes
0
answers
22
views
next_connect__WEBPACK_IMPORTED_MODULE_3__.default) is not a function
import dbConnect from '../../lib/mongodb';
import Job from '../../models/Job';
import multer from 'multer';
import nextConnect from 'next-connect';
import fs from 'fs';
import path from 'path';
const ...
1
vote
2
answers
29
views
updating related relations in database
i have created groups , which has members , each member has a group array displaying which they are part of . if i delete a group i want that user's group array also updates. i am using express and ...
- 11
0
votes
0
answers
46
views
Tyring to connect my backend with mongoDB
I'm trying to connect backend with mongo_db , but i got this error again and again
"Error connecting to MongoDB MongoServerError: bad auth : authentication failed"
I've tried following
...
0
votes
1
answer
22
views
MongoDB Atlas CMD_NOT_ALLOWED: grantRolesToUser and dropDatabase Permissions Issue
I am encountering issues with MongoDB Atlas permissions while trying to manage user roles and perform administrative actions. Specifically, I am facing the following errors:
MongoServerError[...
- 3
0
votes
1
answer
87
views
Node.js Express application not logging MongoDB connection status
I'm developing a Node.js Express application that connects to a MongoDB database. Despite implementing logging in my code, the application does not log anything related to the MongoDB database ...
- 23
0
votes
0
answers
23
views
How to use a list as a projection in MongoDB
So I am managing a database where we store information of test results for ASICs we are developing. I have one query which will return the numbers of ASICs that did not pass all tests:
list(self.db['...
- 3
-1
votes
0
answers
19
views
I'm trying to create a validation rule for an existing collection but I'm getting an error
I had the below error
JSON field 'collMod.validator' is the wrong type 'string', expected
type 'object'
This is my code
db.runCommand({
collMod: "SignUp",
validator: {
$jsonSchema: ...
1
vote
0
answers
27
views
Is `{ field: { $in: [null, 'something-1', 'someting-2', []] } }` performance wise okay to use than separate query?
Query 1 : { field: { $in: [null, 'something-1', 'someting-2', []] } }
Query 2 :
{
$or: [
{ field: { exists: false } },
{ field: { $in: ['something-1', 'something-2'] } },
{ ...
- 25
1
vote
1
answer
28
views
MongoDB new Replica Set member's syncSourceHost
When i try to add new replicaSet member to my rs, their syncSourceHost's are always different and certainly not PRIMARY node. They all secondaries. Why is that happening? Is there a default setting or ...
- 23