nikushi

local mac

/etc/hosts

203.104.111.176   isu1
203.104.111.177   isu2
203.104.111.178   isu3

nikushi

• RACK_ENV=production
• ログオフ ?
• my.cnf スロークエリoff ?
• td-agent off
• erb => sprintf
• network 帯域
• network port枯渇
• ulimit
• TCP backlog
• swap

nikushi

#!/bin/bash
#
# http://tech.naviplus.co.jp/2014/01/09/tmuxで複数サーバの同時オペレーション/
#

if [ -n "$SESSION_NAME" ];then
  session=$SESSION_NAME
else
  session=multi-ssh-`date +%s`
fi

nikushi

aaa

nikushi

Host isuconprd
  HostName xx.xx.xx.xx
  User isucon
  ForwardAgent yes
  IdentityFile /Users/nikushi.nobuhiro/.ssh/isuconprd

nikushi

週末に検証/調べたいことメモ

TCP

• TCP Fast Open
• TCP Slow Start Restart(SSR)(スロースタートリスタートは無効に設定 sysctl -w net.ipv4.tcp_slow_start_after_idle=0

TLS

• TLS False Start

nikushi

GET /about/ HTTP/1.0
User-Agent: Chrome

HTTP/1.0 200 OK
Content-Type: text/plain
Content-Length: 8
hogehoge

nikushi

/**
* returns keys located at top of spreadsheet 
*
* @param {Sheet} sh Sheet class
* @return {Array} array of keys
*/
function headerKeys(sh) {
  return sh.getRange(1,1,1, sh.getLastColumn()).getValues()[0];
}

nikushi

function onOpen() {
  var ss = SpreadsheetApp.getActive();
  var sh = ss.getSheetByName('sheet 1');
  var range = sh.getRange('A2:A');
  setValidation(range);
}

function setValidation(range) {
  range.setDataValidation(dataValidator());
}

nikushi

http://go-tour-jp.appspot.com/

のエクササイズのコードメモ