fabiolimace

CREATE SEQUENCE public.global_id_seq;
ALTER SEQUENCE public.global_id_seq OWNER TO postgres;

CREATE OR REPLACE FUNCTION public.id_generator()
    RETURNS bigint
    LANGUAGE 'plpgsql'
AS $BODY$
DECLARE
    our_epoch bigint := 1314220021721;
    seq_id bigint;

fabiolimace

// Before
@Id
@Column(name = "entity_id")
@GeneratedValue(generator = "system-uuid")
@GenericGenerator(name = "system-uuid", strategy = "uuid2")
private String entityId;

// After
@Id
@Column(name = "entity_id")

fabiolimace

#!/bin/bash

INIT_TABLE_ROWS=20000000
PGBENCH_TRANSACTIONS_PER_CLIENT=100000
PGBENCH_CLIENTS=10

run_test() {
  echo "$(date +%y%m%d.%H%M) STARTING TEST $1"

  pg_stop

fabiolimace

import org.junit.Test;

import java.lang.ref.WeakReference;

import static org.junit.Assert.assertNull;

public class ThreadLocalWeakRefTest {
  /**
   * Many Java web servers and containers go out of their way to find and null
   * out ThreadLocals that an application might have created. Question is, is

fabiolimace

Comparison of syntax extensions in Markdown flavors

I created a crude comparison of the syntax of the various common Markdown extensions to have a better view on what are the most common extensions and what is the most widely accepted syntax for them. The list of Markdown flavors that I looked at was based on the list found on CommonMark's GitHub Wiki.

Flavor	Superscript	Subscript	Deletion* Strikethrough	Insertion*	Highlight*	Footnote	Task list	Table	Abbr	Deflist	Smart typo	TOC	Math	Math Block	Mermaid
GFM

fabiolimace

SET UTF-8
TRY áàãâéêíóõôúüçesianrtolcdugmphbyfvkwjqxz

#   VERO - Verificador Ortográfico Livre - Versão 3.2
#   Copyright (C) 2006 - 2013  por Raimundo Santos Moura
#   <raimundo.smoura@gmail.com>
#   Brasil - outubro 2013
#   Este é um dicionário para correção ortográfica da língua Portuguesa
#   para o Hunspell.
#   Este programa é livre e pode ser redistribuído e/ou modificado nos

fabiolimace

How to optimize / defrag ext4 filesystem

Make sure the target filesystem is sane

Open up the terminal and run:

sudo fsck.ext4 -y -f -v /dev/<disk/partition>

fabiolimace

http://www.oreilly.com/data/free/files/2014-data-science-salary-survey.pdf
http://www.oreilly.com/data/free/files/2015-data-science-salary-survey.pdf
http://www.oreilly.com/data/free/files/Data_Analytics_in_Sports.pdf
http://www.oreilly.com/data/free/files/advancing-procurement-analytics.pdf
http://www.oreilly.com/data/free/files/ai-and-medicine.pdf
http://www.oreilly.com/data/free/files/analyzing-data-in-the-internet-of-things.pdf
http://www.oreilly.com/data/free/files/analyzing-the-analyzers.pdf
http://www.oreilly.com/data/free/files/architecting-data-lakes.pdf
http://www.oreilly.com/data/free/files/being-a-data-skeptic.pdf
http://www.oreilly.com/data/free/files/big-data-analytics-emerging-architecture.pdf

fabiolimace

Markdown Text 101

Want to inject some flavor into your everyday text chat? You're in luck! Discord uses Markdown, a simple plain text formatting system that'll help you make your sentences stand out. Here's how to do it! Just add a few characters before & after your desired text to change your text! I'll show you some examples...

Sweet Styles

Italics *italics* or _italics_

Underline italics __*underline italics*__

fabiolimace

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?