tanvirstreame

cp /etc/mongod.conf /etc/mongod2.conf
cd /lib/systemd/system

cp mongod.service mongod2.service

edit ta service config and add /etc/mongod2.conf
sudo chown -R mongodb:mongodb /root/database/replica_database*
sudo systemctl start mongod2.service
sudo systemctl status mongod2.service

tanvirstreame

mongod --dbpath /root/database/replica_db --bind_ip 0.0.0.0 --port 27019 --replSet rs1

tanvirstreame

create a sperate mongodb conf then do this
mongod --config /usr/local/etc/mongod2.conf &

tanvirstreame

sudo service mongodb stop 

sudo rm /var/lib/mongodb/mongod.lock 

sudo mongod --repair --dbpath /var/lib/mongodb 

sudo mongod --fork --logpath /var/lib/mongodb/mongodb.log --dbpath /var/lib/mongodb 

sudo service mongodb start

tanvirstreame

connecting to: mongodb://127.0.0.1:27017/test?compressors=disabled&gssapiServiceName=mongodb
Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException: Error connecting to 127.0.0.1:27017 :: caused by :: Connection refused :
connect@src/mongo/shell/mongo.js:374:17


sudo rm /var/lib/mongodb/mongod.lock
sudo mongod --dbpath /var/lib/mongodb/ --repair
sudo mongod --dbpath /var/lib/mongodb/ --journal

tanvirstreame

Error: 
 mongod.service - MongoDB Database Server
     Loaded: loaded (/lib/systemd/system/mongod.service; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Mon 2022-02-21 09:54:10 UTC; 2s ago
       Docs: https://docs.mongodb.org/manual
    Process: 114876 ExecStart=/usr/bin/mongod --config /etc/mongod.conf (code=exited, status=14)
   Main PID: 114876 (code=exited, status=14)

Solution: 
 sudo rm -rf /tmp/mongodb-27017.sock

tanvirstreame

Nginx: stat() failed (13: permission denied)

from https://stackoverflow.com/questions/25774999/nginx-stat-failed-13-permission-denied

Nginx operates within the directory, so if you can't cd to that directory from the nginx user then it will fail (as does the stat command in your log). Make sure the www-user can cd all the way to the /username/test/static. You can confirm that the stat will fail or succeed by running

sudo -u www-data stat /username/test/static

tanvirstreame

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
    {
        "name": "Attach by Process ID",
        "processId": "${command:PickProcess}",
        "request": "attach",

tanvirstreame

const fs = require('fs')
const request = require('request')

const download = (url, path, callback) => {
  request.head(url, (err, res, body) => {
    request(url)
      .pipe(fs.createWriteStream(path))
      .on('close', callback)
  })
}

tanvirstreame

var accounts = [
  { name: 'James Brown', msgCount: 123 },
  { name: 'Stevie Wonder', msgCount: 22 },
  { name: 'Sly Stone', msgCount: 16 },
  { name: 'Otis Redding', msgCount: 300 }  // Otis has the most messages
];

// get sum of msgCount prop across all objects in array
var msgTotal = accounts.reduce(function(prev, cur) {
  return prev + cur.msgCount;