dgierejkiewicz

#!/usr/bin/env bash

# https://docs.docker.com/install/linux/docker-ce/ubuntu/
sudo apt-get install apt-transport-https ca-certificates curl software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable"
sudo apt-get update
sudo apt-get install docker-ce

# https://docs.docker.com/compose/install/

dgierejkiewicz

TL;DR

Install Postgres 9.6, and then:

sudo pg_dropcluster 9.6 main --stop
sudo pg_upgradecluster 9.5 main
sudo pg_dropcluster 9.5 main

dgierejkiewicz

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

dgierejkiewicz

<?php

namespace App\Traits;

use Monolog\Formatter\FormatterInterface;
use Monolog\Formatter\JsonFormatter;
use Monolog\Formatter\LineFormatter;
use Monolog\Handler\RotatingFileHandler;
use Monolog\Logger;
use Monolog\Processor\GitProcessor;

dgierejkiewicz

##############################
## Java
##############################
.mtj.tmp/
*.class
*.jar
*.war
*.ear
*.nar
hs_err_pid*

dgierejkiewicz

## Consumer Throughput: Single consumer thread, no compression
## Consumer Throughput: 3 consumer thread, no compression

bin/kafka-consumer-perf-test.sh --topic benchmark-3-3-none \
--zookeeper kafka-zk-1:2181,kafka-zk-2:2181,kafka-zk-3:2181 \
--messages 15000000 \
--threads 1

dgierejkiewicz

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.

dgierejkiewicz

# source: https://github.com/kiasaki/docker-alpine-postgres
FROM alpine

RUN echo "@edge http://nl.alpinelinux.org/alpine/edge/main" >> /etc/apk/repositories && \
    apk update && \
    apk add curl "libpq@edge<9.7" "postgresql-client@edge<9.7" "postgresql@edge<9.7" "postgresql-contrib@edge<9.7" && \
    curl -o /usr/local/bin/gosu -sSL "https://github.com/tianon/gosu/releases/download/1.2/gosu-amd64" && \
    chmod +x /usr/local/bin/gosu && \
    apk del curl && \
    rm -rf /var/cache/apk/*

dgierejkiewicz

package cache

import (
	"crypto/sha256"
	"encoding/json"
	"fmt"
	"os"
	"sync"
	"time"
)

dgierejkiewicz

Channels Are Not Enough

... or Why Pipelining Is Not That Easy

Golang Concurrency Patterns for brave and smart.

By @kachayev

Intro