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データ分析基盤の憂鬱と退屈
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データサイエンティストも憂鬱だけど、データ基盤屋も憂鬱だ
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データ分析基盤の憂鬱と退屈
1.
データ分析基盤の憂鬱と退屈 @shoe116
2.
今日話すこと 0. whoami 1. データ分析基盤の憂鬱 1.
データ量に対してコストがスケールする 2. 顧客が本当に必要だったもの 2. データ分析基盤の退屈: 1. 結局のところ、使う側次第 2. なんかすごそうだけど、地味
3.
0. whoami なまえ:しゅう (@shoe116) お仕事:広告系エンジニア→データ分析基盤屋屋さん 推し事:ももくろ→でんぱ組→BiSH→CY8ER 関連語:hadoop,
kafka, storm, hive 最近のトピックス: 1. 転職までの無職期間(3週間)ヨーロッパふらふらした 2. バフェット・コード作った https://www.buffett-code.com/ 3. CY8ERの苺りなはむに名前覚えられた(俗に言う認知)
4.
1. データ基盤の憂鬱
5.
1.1 データ量に対してコストがスケールする - 本来、分析作業が生む価値に合わせてスケールするべき -
通常のトランザクションデータとは本質的に異なる - サービス用のデータは、その成長に対してスケール - 取得するログは無尽蔵に増やせるし増やしたくなる - ほとんどの場合、下記のすべてがスケールしてしまう - CPU/メモリ/ストレージ/ネットワーク - システムの管理コスト - 1つの処理にかかる時間 or 並列実行数
6.
1. 2 顧客が本当に必要だったもの -
「基盤」と聞くと夢が広がる - 環境的な:でかいストレージ、すごいコンピュート - 管理的な:ACL、セキュリティ、スキーマ情報 - DWH的な:分析しやすい良さげなテーブルが揃う - データサイエンティストに求められるスキルセット問題 - ビジネス力 - データササイエンス力 - データエンジニア力 - “基盤”で全部解決するの無理w
7.
1. データ基盤の退屈
8.
2.1 結局の所、使う側次第 - 分析基盤の価値は利用者個人個人に委ねられる -
環境的な:自分がやりたいことができるか - 管理的な:使いたいけど、管理はめんどくさい - DWH的な:自分にとって必要なデータの有無 - 分析基盤の性能は、使い方に大きく依存する - DBのデザインやスキーマ設計 - 圧縮アルゴリズム、ファイルフォーマット - アホなクエリはどうしたって遅い
9.
2.1 なんかすごそうだけど、地味 - 要件自体はひたすらシンプル -
漏れなくダブりなく、なる早でデータを集める - 処理効率が高く、圧縮が効く形でデータを保存 - 分析者が利用しやすい形でデータを提供する - 技術的には楽しくて仕方ないけど、地味 - チューニングで劇的に性能が左右される - 分散システム、圧縮、ソート、インデックス生成etc - 何がどうすごくなったか、なかなか伝わらない
10.
関連資料 - データサイエンティストのスキルセット - http://www.datascientist.or.jp/news/2014/pdf/1210.pdf -
データサイエンティストの憂鬱 - http://shoe116.hatenablog.com/entry/2016/04/04/084113 - バフェット・コード - https://www.buffett-code.com/ - https://github.com/BuffetCode/edinet_xbrl - CY8ERと苺りなはむ - http://icigostyle.com/ - https://twitter.com/CY8ERinfo - https://twitter.com/rinahamu
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