Khon tkt028

5 entertaining things you can find with the GitHub Search API

Let's have some command-line fun with curl, [jq][1], and the [new GitHub Search API][2].

Today we're looking for:

The hottest repositories created in the last week.
The oldest user accounts with zero followers. (So sad.)
Issue trends by language.
Clojure projects defying convention.

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

-E: will describe the underlaying queries of the \ commands (cool for learning!)
-l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

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.

Using Docker and docker-compose to manage Apache Airflow on mac

Using our beloved docker and docker-compose, we can very quickly bring up an Apache Airflow instance on our mac.

Contents of docker-compose.yml

About the only thing you need to customize in this docker-compose.yml file is the volumes section. This will tell docker to map the given directory containing your Airflow DAGs/plugins to container file system.

version: '3'
services:

	// Java : GetResourceAsStream In Static Method
	// - http://www.mkyong.com/java/java-getresourceasstream-in-static-method/

	// If the method getFilePathToSave() is converted to static method, the getClass()
	// method will be failed, and prompts "Cannot make a static reference to the non-static
	// method getClass() from the type Object".

	// Instead, you should use CurrentClass.class.getClassLoader().getResourceAsStream.

	package com.mkyong.crawler.util;

	/**
	* Module dependencies
	*/

	var express = require('express');
	var fs = require('fs');
	var mongoose = require('mongoose');
	var Schema = mongoose.Schema;

	// img path

	# install needed libraries
	sudo yum install texinfo libXpm-devel giflib-devel libtiff-devel libotf-devel

	# compile autoconf
	cd /tmp
	wget ftp://ftp.gnu.org/gnu/autoconf/autoconf-2.68.tar.bz2
	tar xjvf autoconf-2.68.tar.bz2
	cd autoconf-2.68/
	./configure && make && sudo make install

	# Dinh duong cho be

	六个月宝宝辅食食谱 - http://baike.pcbaby.com.cn/qzbd/940050.html#ldjc4ta=baby_tbody5

	When a baby can eat yogurt? http://wholesomebabyfood.momtastic.com/tipyogurt.htm

	Chế độ ăn dặm cho trẻ 6 tháng tuổi - http://tudu.com.vn/vn/suc-khoe-cua-be/che-do-an-dam-cho-tre-6-thang-tuoi/

	http://congai9.com/thoi-gian-bieu-cho-be-6-thang-an-dam/

	const http = require('http');
	const express = require('express');
	const redis = require('redis');
	const { RateLimiterRedis } = require('rate-limiter-flexible');
	const redisClient = redis.createClient({
	enable_offline_queue: false,
	});

	const maxWrongAttemptsByIPperMinute = 5;
	const maxWrongAttemptsByIPperDay = 100;

	check host localhost with address 127.0.0.1
	start "/sbin/start myapp"
	stop "/sbin/stop myapp"
	if failed port 3000 protocol HTTP
	request /
	with timeout 5 seconds
	then restart