Almir Bolduan almirb

Criando uma Instância Linux de Alta Performance para o MongoDB

A seguir, teremos uma série de dicas divididas em tópicos para configurar uma instância Linux de alta performance para executar o MongoDB.

Incremento do Limite de Processos do OS

O MongoDB precisa criar vários descritores de arquivos quando vários clientes se conectam, sendo necessário ter vários processos simultâneos para operar com eficácia. Os padrões normais do OS acabam por limitar essa quantidade de processos.

Vamos alterar os limites de processos no OS.

Data Analytics/Science Terms and Concepts Cheatsheet

Structured Data

Data is organized to meet a schema. Think tables which organize data into rows and columns.

Unstructured Data

Data is unorganized and lacks a schema. Imagine collections of html documents including text and images not organized in any consistent way.

Instalação básica do Dremio

Rodar este docker-compose.yml no servidor:

version: '3.1'

services:

  dremio:
    image: dremio/dremio-oss:<tag>
 container_name: dremio

Batch Compress PDF

This can reduce files to ~15% of their size (2.3M to 345K, in one case) with no obvious degradation of quality. With this file you'll able to compress a bunch of PDF files at once.

Usage

First, download and install Ghostpdf (https://ghostscript.com/download/). From command prompt, run compress-pdf.md "source folder" "destination folder" e.g:

	#!/bin/sh

	# Make sure to:
	# 1) Name this file `backup.sh` and place it in /home/ubuntu
	# 2) Run sudo apt-get install awscli to install the AWSCLI
	# 3) Run aws configure (enter s3-authorized IAM user and specify region)
	# 4) Fill in DB host + name
	# 5) Create S3 bucket for the backups and fill it in below (set a lifecycle rule to expire files older than X days in the bucket)
	# 6) Run sudo mkdir /data/tmp
	# 7) Run sudo chmod 777 /data/tmp/

	version: '2'
	services:
	dremio:
	image: dremio/dremio-oss
	container_name: dremio
	#volumes:
	#- dremio-local:/opt/dremio/data
	ports:
	- 9047:9047
	- 31010:31010

	#!/bin/sh
	# Adds an IP to Cloudflare IP block list
	# Path: /var/ossec/active-response/bin/cloudflare-ban.sh
	# Authors: Bryan Dwyer (bdtech) and Almir Bolduan (almirb)
	# Last modified: May 08, 2019
	#
	# Sample config (Edit /var/ossec/etc/ossec.conf):
	#
	# <command>
	# <name>cloudflare-ban</name>

	<?php
	class PostController extends Controller
	{
	// ...
	public function actionDelete($id)
	{
	$this->findModel($id)->delete();

	if (!Yii::$app->request->isAjax) {
	return $this->redirect(['index']);

	#!/bin/bash -e
	# Original credits to theodorosploumis
	# IMPORTANT. My phpstom installation exists on /opt/phpstorm.
	if [ "$(whoami)" != "root" ]
	then
	echo "Sorry, you are not root."
	exit 1
	fi

	<?php

	/*
	* [Yii2][Migration] Todos os estados e cidades do Brasil
	*
	* Autor: Emanuel A. Leite (https://github.com/AnDroidEL)
	* Data: 02/04/2016
	*
	* Ajustes: Almir Bolduan (https://github.com/almirb)
	* Data: 01/09/2016