takatoshiono

package main

import (
	"bytes"
	"fmt"
	"io/ioutil"
	"log"
	"os"

	"golang.org/x/text/encoding/japanese"

takatoshiono

var minNum = 1 // The minimum bingo number
var maxNum = 15 // The maximum bingo number
var numRows = 3 // The number of bingo sheet rows
var numCols = 3 // The number of bingo sheet columns

// The list of left top point of a bingo sheet in format of spreadsheet rows and columns number
var startingPoints = [
  {"row":4,"col":2},
  {"row":4,"col":6},
  {"row":11,"col":2},

takatoshiono

file	line	func
./src/archive/tar/reader.go	296	func parsePAX(r io.Reader) (map[string]string, error) {
./src/archive/tar/reader.go	39	func NewReader(r io.Reader) *Reader {
./src/archive/tar/reader.go	517	func readGNUSparseMap1x0(r io.Reader) (sparseDatas, error) {
./src/archive/tar/reader.go	808	func mustReadFull(r io.Reader, b []byte) (int, error) {
./src/archive/tar/reader.go	818	func tryReadFull(r io.Reader, b []byte) (n int, err error) {
./src/archive/tar/reader.go	831	func discard(r io.Reader, n int64) error {
./src/archive/tar/writer.go	452	func (tw *Writer) readFrom(r io.Reader) (int64, error) {
./src/archive/tar/writer.go	510	func (fw *regFileWriter) ReadFrom(r io.Reader) (int64, error) {

takatoshiono

入門KubernatesとManaging Kubernetesに出てきた用語

これらの用語を自分で説明できるようにならねばならん

用語

• Cluster
  • nodeの集まり
• Node
• クラスタを構成する仮想マシン

takatoshiono

namespace :convert_to_active_storage do
  desc 'Convert to Activestorage'
  task :run => :environment do
    conn = ActiveRecord::Base.connection.raw_connection

    Cafe.order(:id).each do |cafe|
      puts "Convert cafe id=#{cafe.id}"

      blob_params = [
        cafe.class.generate_unique_secure_token,

takatoshiono

require 'fluent/plugin/parser'
require 'heroku-log-parser'

module Fluent
  module Plugin
    class HerokuParser < Parser
      Fluent::Plugin.register_parser('heroku', self)

      def configure(conf)
        super

takatoshiono

<h1>Editing {{.Title}}</h1>

<form action="/save/{{.Title}}" method="POST">
<div><textarea name="body" rows="20" cols="80">{{printf "%s" .Body}}</textarea></div>
<div><input type="submit" value="Save"></div>
</form>

takatoshiono

rootじゃないユーザーで実行したい。

mysql> select * from User where User = 'test-user' \G
*************************** 1. row ***************************
                  Host: localhost
                  User: test-user
              Password:
           Select_priv: Y
           Insert_priv: Y

takatoshiono

pt-osc使ってみよう

インストール

homebrewで入れる

➜  ~  brew install percona-toolkit
==> Installing dependencies for percona-toolkit: openssl, mysql
==> Installing percona-toolkit dependency: openssl

takatoshiono

package main

import (
	"log"
	"net"
)

func main() {
	ln, err := net.Listen("tcp", ":8081")
	if err != nil {