Daniel Jeon oeegee

NAVER DEVIEW 2017 Slides

DAY 1

How to enable windows's thunderbolt3 device on macOS

This solution is how to succeed in macOS Catalina 10.15.3 (19D76).

Dell TB16 Dock on Macbook Pro Thunderbolt does not work (macOS = 10.15.x)

Nice meet you and this page is @tomjyoutwit's update version!! (https://superuser.com/a/1354399/1147451)

Please follow this manual process carefully. It worked for me but i'm yet to get the display(s) working, but you may have more luck using the other display outputs on the dock.

	개발서버에 Redis 를 구성해보자
	Redis Cluster가 나온지 어언 1년이 넘었다.

	이제 사용할만하다는 소문이 들린다.

	구성 참조 : https://www.linode.com/docs/applications/big-data/how-to-install-and-configure-a-redis-cluster-on-ubuntu-1604
	(Ubuntu 버전이지만, 그래도 괜찮아~)

	http://redisgate.com/redis/configuration/persistence.php (한국어)
	http://intro2libsys.com/focused-redis-topics/day-one/intro-redis-cluster

	import spark.SparkContext
	import SparkContext._

	/**
	* A port of [[http://blog.echen.me/2012/02/09/movie-recommendations-and-more-via-mapreduce-and-scalding/]]
	* to Spark.
	* Uses movie ratings data from MovieLens 100k dataset found at [[http://www.grouplens.org/node/73]]
	*/
	object MovieSimilarities {

	def dotProduct(vector: Array[Int], matrix: Array[Array[Int]]): Array[Int] = {
	// ignore dimensionality checks for simplicity of example
	(0 to (matrix(0).size - 1)).toArray.map( colIdx => {
	val colVec: Array[Int] = matrix.map( rowVec => rowVec(colIdx) )
	val elemWiseProd: Array[Int] = (vector zip colVec).map( entryTuple => entryTuple._1 * entryTuple._2 )
	elemWiseProd.sum
	} )
	}

	부록 A Zeppelin Open Source 기여 방법

	나에게 필요한 기능 구현 또는 버그를 개선하고 싶다면 - jira 확인

	[이슈검색 하기]
	오래전에 fork 해두었다면, 여기 참조 http://www.notforme.kr/archives/1631

	+ jira 이슈 고르기 (쉬운 것부터)

	기능개발 또는 버그픽스