christkv

I, [2020-01-28T13:04:01.697979 #19]  INFO -- : Celluloid 0.17.4 is running in BACKPORTED mode. [ http://git.io/vJf3J ]
DEPRECATION WARNING: Including LoggerSilence is deprecated and will be removed in Rails 6.1. Please use `ActiveSupport::LoggerSilence` instead (called from <top (required)> at /app/config/application.rb:7)
boot.rb :: redis://redistogo:5d409cac6b79ca38e02304d3ead04aec@porgy.redistogo.com:11884/
ENV['REDISTOGO_URL'] = redis://redistogo:5d409cac6b79ca38e02304d3ead04aec@porgy.redistogo.com:11884/
ENV['REDIS_URL'] = 
application.rb :: redis://redistogo:5d409cac6b79ca38e02304d3ead04aec@porgy.redistogo.com:11884/
ENV['REDISTOGO_URL'] = redis://redistogo:5d409cac6b79ca38e02304d3ead04aec@porgy.redistogo.com:11884/
ENV['REDIS_URL'] = redis://redistogo:5d409cac6b79ca38e02304d3ead04aec@porgy.redistogo.com:11884/
[2020-01-28T13:04:04 (process) #19][INFO] appsignal: Loading Rails (6.0.1) integration
[2020-01-28T13:04:05 (process) #19][ERROR] appsignal: Push api key not set after loading config

christkv

var a = new Promise(function(reject, resolve) {
  if(err) return reject(err);
  .......
  resolve(value);
});

var b = new Promise(function(reject, resolve) {
  if(err) return reject(err);
  .......
  resolve(value);

christkv

Start Suite: legacy js parser

• {'hello': 'world', n: 0} x 251,461 ops/sec ±2.07% (86 runs sampled)
• {'hello': 'world', n: 0, doc: { a: 1}} x 112,596 ops/sec ±1.72% (85 runs sampled)
• {'hello': 'world', n: 0, doc: { a: 1, b: { 'hello': 'again' }}} x 69,673 ops/sec ±3.34% (86 runs sampled)

Start Suite: legacy c++ parser

• {'hello': 'world', n: 0} x 645,325 ops/sec ±0.92% (97 runs sampled)
• {'hello': 'world', n: 0, doc: { a: 1}} x 350,544 ops/sec ±1.40% (95 runs sampled)

christkv

var cursor = GLOBAL.db.collection("data").find({ dataId : dataId }, { _id : 1, data : 2 }, { "sort" : [[ '_id', 1 ]] });
cursor.on('data', function(doc) {
});

cursor.on('error', function(err) {
});

cursor.on('end', function() {
});

christkv

var ReplSetManager = require('mongodb-tools').ReplSetManager
  , ServerManager = require('mongodb-tools').ServerManager
  , ShardingManager = require('mongodb-tools').ShardingManager
  , mkdirp = require('mkdirp')
  , path = require('path');

// Parse the passed in parameters
var yargs = require('yargs')
  .usage('Start a local topology.\nUsage: $0')
  .example('$0 -t replicaset', 'Run a local replicaset')

christkv

var count = items.length;

for(var i = 0; i < items.length; i++) {

  doSomething(function(err) {
    count = count - 1;
    
    if(count == 0) {
      console.log("DONE")
    }

christkv

var A = function() {
  var _a = 1;

  this.A = function() {
    return _a;
  }
}

christkv

//
// Ensures that mongod respects the batch write protocols
//

var collectionName = "batch_write_protocol";
var coll = db.getCollection(collectionName);

jsTest.log("Starting insert tests...");

coll.remove({});

christkv

bc = {
    auth:{
        configuration_type: 'replicaset',
        replicaset: {
            db_name: 'auth',
            servers: [
                {host:'localhost',port:4000,options:{auto_reconnect:true}},
                {host:'localhost',port:4001,options:{auto_reconnect:true}}
                ,{host:'localhost',port:4002,options:{auto_reconnect:true}}
            ],

christkv

# A primer for GridFS using the Mongo DB driver
In the first tutorial we targeted general usage of the database. But Mongo DB is much more than this. One of the additional very useful features is to act as a file storage system. This is accomplish in Mongo by having a file collection and a chunks collection where each document in the chunks collection makes up a **Block** of the file. In this tutorial we will look at how to use the GridFS functionality and what functions are available.

## A simple example
Let's dive straight into a simple example on how to write a file to the grid using the simplified Grid class.

    var mongo = require('mongodb'),
      Server = mongo.Server,
      Db = mongo.Db,
	Grid = mongo.Grid;