# ISUCON9 Practice

## インスタンス情報
- AWS EC2 t3.xlarge 4 vCPUs, mem 16 GB 2台
- 1台目（こっちで作業）：18.183.95.23
- 2台目：18.183.43.224
- Open ports: 80, 8000, 22, 5555, 19999, 7000, 443, 5001

## 初期化

$ sudo apt -y update
$ sudo apt -y upgrade

$ wget https://golang.org/dl/go1.15.linux-amd64.tar.gz
$ sudo tar -xvf go1.15.linux-amd64.tar.gz
$ sudo mv go /usr/local

$ vim .profile
export GOROOT=/usr/local/go
export GOPATH=$HOME/go
export PATH=$GOPATH/bin:$GOROOT/bin:$PATH

$ source ~/.profile

$ go get -d github.com/isucon/isucon9-qualify
$ cd $GOPATH/src/github.com/isucon/isucon9-qualify
$ cd initial-data

# Install make
$ sudo apt install make

# Install docker
$ sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg-agent \
    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 \
   $(lsb_release -cs) \
   stable"

$ sudo apt-get update
$ sudo apt-get install docker-ce docker-ce-cli containerd.io

# Enable docker to run without sudo
$ sudo groupadd docker
$ sudo usermod -aG docker $USER
$ newgrp docker

$ make

# 画像データの展開
$ cd $GOPATH/src/github.com/isucon/isucon9-qualify/webapp/public
$ wget https://github.com/isucon/isucon9-qualify/releases/download/v2/initial.zip

$ sudo apt install unzip

$ unzip initial.zip
$ rm -rf upload
$ mv v3_initial_data upload

$ cd initial-data
$ wget https://github.com/isucon/isucon9-qualify/releases/download/v2/bench1.zip
unzip bench1.zip
$ mv v3_bench1 images

# Database Initialization
$ cd webapp/sql
$ sudo apt install mysql-client-core-5.7
$ sudo apt install mysql-server
$ sudo mysql
> SELECT user,authentication_string,plugin,host FROM mysql.user;
> CREATE USER 'ubuntu'@'localhost' IDENTIFIED BY '';
> GRANT ALL PRIVILEGES ON *.* TO 'ubuntu'@'localhost' WITH GRANT OPTION;
$ cat 00_create_database.sql | mysql

# Goアプリを起動
$ cd webapp/go
$ GO111MODULE=on go run api.go main.go

# 外部サービスの起動
$ cd $GOPATH/src/github.com/isucon/isucon9-qualify
$ make

## Netdata導入

# Install
bash <(curl -Ss https://my-netdata.io/kickstart.sh)

netdata by default listens on all IPs on port 19999,
so you can access it with:

  http://this.machine.ip:19999/
 -> http://18.183.95.23:19999/
To stop netdata run:

  systemctl stop netdata

To start netdata run:

  systemctl start netdata

# Listenしてるポートを確認
sudo lsof -i tcp:19999

## Commands

alp
$ alp -r --sort=max --file=/var/log/nginx/access.log ltsv | head -20

pt-query-digest
$ sudo pt-query-digest --order-by Query_time:sum  /tmp/mysql-slow.sql | less

## New Relic 導入

### Dashboard
[New Relic APM Dashboard](https://one.newrelic.com/launcher/nr1-core.explorer?pane=eyJuZXJkbGV0SWQiOiJhcG0tbmVyZGxldHMub3ZlcnZpZXciLCJlbnRpdHlJZCI6Ik1qZzFNekF3TUh4QlVFMThRVkJRVEVsRFFWUkpUMDU4T0RZNE9UTTNNRFl3In0=&sidebars[0]=eyJuZXJkbGV0SWQiOiJucjEtY29yZS5hY3Rpb25zIiwiZW50aXR5SWQiOiJNamcxTXpBd01IeEJVRTE4UVZCUVRFbERRVlJKVDA1OE9EWTRPVE0zTURZdyIsInNlbGVjdGVkTmVyZGxldCI6eyJuZXJkbGV0SWQiOiJhcG0tbmVyZGxldHMub3ZlcnZpZXcifX0=&platform[timeRange][duration]=1800000&platform[$isFallbackTimeRange]=true) (ログイン必要)

### Screenshots

概要

時間のかかるURI

重たいMySQL処理

重たい外部API

### 手順
1. User追加設定（3人まで設定可能）
2. Timezone設定（Asia/Tokyo）
3. nodejsだとnpmパッケージとして入れられる

$ cd ~/isucon/nodejs
$ npm install newrelic --save

4. newrelic.js (configファイル)を`~/isucon/nodejs`下に追加
5. 環境変数としてlicense keyを追加

$ export NEW_RELIC_LICENSE_KEY=**************

- https://docs.newrelic.com/docs/agents/nodejs-agent/installation-configuration/install-nodejs-agent
- https://docs.newrelic.com/docs/agents/nodejs-agent/installation-configuration/nodejs-agent-configuration#
- https://docs.newrelic.com/docs/agents/nodejs-agent/getting-started/compatibility-requirements-nodejs-agent
- https://newrelic.co.jp/resources/webinars/get_ready_for_isucon10-ty