vanics

function copyFbRecord(oldRef, newRef) {    
     oldRef.once('value', function(snap)  {
          newRef.set( snap.value(), function(error) {
               if( error && typeof(console) !== 'undefined' && console.error ) {  console.error(error); }
          });
     });
}

vanics

# Install linux update, followed by GCC and Make
sudo yum -y update
sudo yum install -y gcc make

# Install Nginx and PHP-FPM
sudo yum install -y nginx php-fpm

# Install PHP extensions
sudo yum install -y php-devel php-mysql php-pdo \
      php-pear php-mbstring php-cli php-odbc \

vanics

1. Install Linux updates, set time zones, followed by GCC and Make

sudo yum -y update
sudo ln -sf /usr/share/zoneinfo/America/Indianapolis \
/etc/localtime
sudo yum -y install gcc make
 

2. Download, Untar and Make Redis 2.8 (check here http://redis.io/download)

vanics

// Really trivial. On new writes to the redis db, we push messages to a websocket channel

var sys = require("sys"), redis = require('./lib/redis-client'), ws = require("./lib/ws");
var pubsub = redis.createClient();
var clients = new Array();

ws.createServer(function (websocket) {
    websocket.addListener("connect", function (resource) { 
      sys.debug("connect: " + resource);
      client_id = resource.match(/apps\/([A-Za-z]+)\/timeline$/)[1];

vanics

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

vanics

// MIT License
//
// Copyright (c) 2016 stable|kernel
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

vanics

#!/bin/sh
set -e
HOST=localhost
DB=test-entd-products
COL=asimproducts

S3PATH="s3://mongodb-backups-test1-entd/$DB/$COL/"
S3BACKUP=$S3PATH`date +"%Y%m%d_%H%M%S"`.dump.gz
S3LATEST=$S3PATH"latest".dump.gz
/usr/bin/aws s3 mb $S3PATH

vanics

import Parse from 'parse/node'
import { afterEach, describe, it } from 'mocha'
import chai from 'chai'
import chaiAsPromised from 'chai-as-promised'

import { resetParse, getAdminUser } from '../../../test/parseHelper'
import errors from '../../utils/errors'

chai.use(chaiAsPromised)
const assert = chai.assert

vanics

// WastingTimeOnStackOverflowTests.swift Created by mason on 2016-09-18.

import XCTest

/// Measures performance of two different ways of checking whether an index is valid
/// for a given array (the variable "a" is an array of 1,000,000 unique strings, and
/// "val" is the index to be checked):
///
///     a.indices.contains(val)
/// vs:

vanics

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm