Tuning node-mongodb-native connection pool size

Tuning node-mongodb-native connection pool size

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Tuning node-mongodb-native connection pool size
Tag : node.js , By : BinaryBoy
Date : November 24 2020, 05:47 AM

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How to increase connection pool size for Mongodb using python

Tag : python , By : user87752
Date : March 29 2020, 07:55 AM
I hope this helps . I am using Mongodb as database for project and i am sending 1000 requests per sec to mongodb. I got a observation that the request which are front in queue works faster as compare to request which are last in queue. I am afraid if call to mongodb increase it will consume more time. I think this i can manage using pool connection.If yes let me know how we increased pool size using python.If no suggest me any other alternative , Hey you can increased pool size in python using pymongo. Syntax
from pymongo import MongoClient
client = MongoClient('host', port, maxPoolSize=200)

Node + MongoDB - connection pool - mongoldb-native

Tag : javascript , By : Lord Zantor
Date : March 29 2020, 07:55 AM
wish of those help Because of the asynchronous nature of node.js, you need to export a callback assignation method to get the variable, and call it on the async execution. The following code explains it better:
'use strict';

var client = require('mongodb').MongoClient;
var connectionString = undefined;
var db, callback;

switch(process.env.NODE_ENV) {
    case 'production':
        connectionString = process.env.MONGOLAB_URI;
    case 'test':
        connectionString = 'mongodb://localhost:27017/test';
        connectionString = 'mongodb://localhost:27017/development';

client.connect(connectionString, function(err, database) {
    if (err) throw err;

    console.log('MongoDB running on ' + (process.env.NODE_ENV || 'development') + ' environment');

    database.on('error', function(err) {
        throw err;
    db = database;
    if( typeof callback == 'function' ){

module.exports = function(cb){
    if(typeof db != 'undefined'){
        cb(foo); // If db is already defined, don't wait.
    } else {
        callback = cb;
var dbModule = require('./lib/mongodb');
    //Here code using db;
        .then(function(items) { 

Correct way to connect to (a pool with) node-mongodb-native

Tag : node.js , By : Tim Benninghoff
Date : March 29 2020, 07:55 AM
I wish did fix the issue. MongoClient.connect takes an optional options parameter with a server field that lets you set the size of the connection pool:
const options = {
    server: {
        poolSize: 10
MongoClient.connect(url, options, callback);

Define Max connection pool size in MongoDB + Java

Tag : java , By : chorn
Date : March 29 2020, 07:55 AM
this one helps. For my Application, I am trying to set min and maximum pool size for the connection. So, Can anyone help me how to do it with mongo Client. , You can try something like this.
public void buildMongoClient() {
    MongoClientOptions.Builder clientOptions = new MongoClientOptions.Builder();
    mongoClient = new MongoClient(new ServerAddress(dbHostName, dbPort), clientOptions.build);
    mongoDatabase = mongoClient.getDatabase(DATABASE);

What is the optimal pool size for a Mongoose connection to MongoDB Atlas?

Tag : javascript , By : CrookedNumber
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , I think this link here should help you: https://dzone.com/articles/how-to-use-mongodb-connection-pooling-on-aws-lambd
One chunk of useful info from there:
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