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Masakazu Matsushita matsukaz

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@matsukaz
matsukaz / Good Developer Experience.md
Last active March 4, 2021 11:02
The only way how to have happy & productive developers [DevFest CZ 2018] の要約メモ
@matsukaz
matsukaz / カーネルパラメータチューニング項目整理.md
Last active July 15, 2024 07:25
sysctl

sysctlで設定可能な項目について調査した内容。

@matsukaz
matsukaz / isucon_howto.md
Created September 19, 2018 15:59
ISUCON当日の進め方

進め方

  • こまめに話しながらコミュニケーションを取る
  • やった作業はSlackで共有
  • 全体構成など整理しやすいように、ホワイトボードを活用

当日やること

課題の理解

@matsukaz
matsukaz / 01.README.md
Last active September 27, 2021 11:07
Find a geolocation of an IP address in BigQuery

This query is to find geolocation of an IP address including latitude, longitude, city and country.

Legacy SQL doesn't support range conditions such as BETWEEN when using JOIN, so we need to filter data by WHERE. This means if IP address does not match any of the data inside geolite_city_bq_b2b, records will not be able to receive.

Use Standard SQL if you want to receive records no matter you succeed to find geolocation or not.

Please refer to the following post for more detail.

https://cloudplatform.googleblog.com/2014/03/geoip-geolocation-with-google-bigquery.html

@matsukaz
matsukaz / application.rb
Last active October 22, 2024 06:09
Rails connection management to handle Amazon Aurora's failover
module xxx
class Application < Rails::Application
#（中略）
config.middleware.swap ActiveRecord::ConnectionAdapters::ConnectionManagement,
'ActiveRecord::ConnectionAdapters::ReconnectOnErrorManagement'
end
end
@matsukaz
matsukaz / gist:b2871dc191f418c813886d9cfde01d3d
Created May 12, 2017 06:48
keybase.md
### Keybase proof
I hereby claim:
* I am matsukaz on github.
* I am matsukaz (https://keybase.io/matsukaz) on keybase.
* I have a public key ASCBEp_cERws8a9bgyJk6TWOlgQlpLEPq8atcv--G9Ynwwo
To claim this, I am signing this object:
@matsukaz
matsukaz / s3-bucket-listing.js
Created December 15, 2016 08:27
s3-bucket-listing.js
// see) https://github.com/rufuspollock/s3-bucket-listing
if (typeof S3BL_IGNORE_PATH == 'undefined' || S3BL_IGNORE_PATH!=true) {
var S3BL_IGNORE_PATH = false;
}
if (typeof BUCKET_URL == 'undefined') {
var BUCKET_URL = location.protocol + '//' + location.hostname;
}
@matsukaz
matsukaz / annotations.rb
Last active August 10, 2021 08:16
Rubyでアノテーションを実装 / Implementing java-like annotations in ruby
module Annotations
@@__last_annotation__ = nil
def annotations(meth=nil)
return @@__annotations__[meth] if meth
@@__annotations__
end
private
@matsukaz
matsukaz / gist:e5876ca34716794c0dfb
Created March 22, 2016 16:25
xcodeのバージョンアップ時にプラグインを再度有効化する方法
XCODE_UUID=`defaults read /Applications/Xcode.app/Contents/Info.plist DVTPlugInCompatibilityUUID`
find ~/Library/Application\ Support/Developer/Shared/Xcode/Plug-ins -name Info.plist | xargs -IFILE defaults write FILE DVTPlugInCompatibilityUUIDs -array-add ${XCODE_UUID}
@matsukaz
matsukaz / .gitignore
Last active September 5, 2018 02:12 — forked from BennettSmith/.gitignore
Google Protobuf v2.6.0 Build Script for iOS
protobuf
protobuf-2.6.0
protobuf-2.6.1
protobuf-master