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本当にあった怖い話 「Hadoopで炎上しかけた話」
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Yukino Ikegami
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PyLadies Tokyo Meetup #15 本当にあった怖い話「Hadoopで炎上しかけた話」
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本当にあった怖い話 「Hadoopで炎上しかけた話」
1.
Hadoop で炎上しかけた話 Yukino Ikegami
@_yukinoi 2016/08/27 PyLadies Tokyo Meetup #15 本当にあった怖い話
2.
自己紹介 • 名前 :
池上有希乃 ( ゆきの ) • IO 株式会社で「みんなの顔文字キーボー ド」作ってます
3.
背景 • 新卒でオンライン広告配信システムの …データマイニングをやってた頃の話 • 現役を引退した余ったサーバで
Hadoop クラスタを構築してがんばってた
4.
ある夏の日のこと • 機械学習ライブラリ Mahout
で LDA 回して た • ……でもなかなか終わらない � • そうだ!余った時間で他のジョブも回そう!
5.
……ことは起こった • Hadoop クラスタの温度が
90℃ 超え!! • インフラ班が急いでファン全開で緊急冷 却! • なんとかなったけど焦った�
6.
反省 • サーバの温度管理の設定をしてなかった • 処理が遅いからといって無茶は禁物
7.
まとめ • Hadoop を酷使したら
90℃ 超えになった ……。 • サーバの温度設定超大事! • 遅くても無茶はだめ!
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