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  Amazon SQSでFIFOだからってシステム全体が Exactly-Once になると思ったら大間違いだっていう話 - Smoky God Express

  • 95 users
  • hkdnet.hatenablog.com
  • テクノロジー
  • 2019/07/16

  TL; DR Amazon SQS で Exactly-Once なキューを使おうとも冪等な処理を書くべき キューが Exactly-Once であるという性質はシステム全体が Exactly-Once になることを保証できない 結局マルチデータソースへの書き込みの問題が残る Designing Data-Intensive Applications (邦訳: データ指向アプリケーションデザイン） が良書でした 邦訳は未読1ですが原著の内容がいいのできっとだいじょうぶでしょう Designing Data-Intensive Applications: The Big Ideas Behind Reliable, Scalable, and Maintainable Systems 作者: Martin Kleppmann出版社/メーカー: O'Reilly Media発売日: 2017/

  • sqs
  • queue
  • aws
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  • amazon

  
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  What exactly is "I'mma?"

  • 21 users
  • english.stackexchange.com
  • 学び
  • 2023/01/13

  When I chat, I'll sometimes hear "I'mma ..." as in: "I'mma go now" or "I'mma open that for you" I am not sure how it's written, I have never gotten a precise answer when I've asked. Where does it come from, and what does it mean?

  • english
  • education
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  What exactly is TTY?

  • 15 users
  • www.sobyte.net
  • テクノロジー
  • 2022/08/14

  Let’s start with an interview question: We know that there are some common shortcuts in the terminal, Ctrl+E to move to the end of a line, Ctrl+W to delete a word, Ctrl+B to move a letter forward, and pressing the up key to bring up the last shell command used. Among these 4 shortcuts, there is one that is implemented differently from the others, which one is it? The answer is Ctrl+W. Because Ctrl

  • linux
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  What exactly was the point of [ “x$var” = “xval” ]? – Vidar's Blog

  • 9 users
  • www.vidarholen.net
  • テクノロジー
  • 2021/04/13

  In shell scripting you sometimes come across comparisons where each value is prefixed with "x". Here are some examples from GitHub: if [ "x${JAVA}" = "x" ]; then if [ "x${server_ip}" = "xlocalhost" ]; then if test x$1 = 'x--help' ; then I’ll call this the x-hack. For any POSIX compliant shell, the value of the x-hack is exactly zero: this comparison works without the x 100% of the time. But why wa

  • Shell
  • Programming
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  メモ：Exactly-once semanticsとKafkaとAWS Lambda - まつざっきブログ

  • 3 users
  • blog-smatsuzaki.hatenablog.com
  • テクノロジー
  • 2021/05/05

  OSDIで行われた以下の発表の資料を読んでいて、「Exactly-once semanticsってなんだっけ？」と疑問に思い、調べたことのメモ。 "Fault-tolerant and transactional stateful serverless workflows" https://t.co/i4L2jLYIlQ from Zhang et al was a good read. Stateful serverless is a great research area, and this is a smart approach to some aspects of the problem. A couple comments:— Marc Brooker (@MarcJBrooker) 2020年11月10日 Fault-tolerant and transactional sta

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  Cloud Pub/Sub Exactly-once Delivery feature is now Generally Available (GA) | Google Cloud Blog

  • 3 users
  • cloud.google.com
  • テクノロジー
  • 2022/12/02

  Cloud Pub/Sub announces General Availability of exactly-once delivery Today the Google Cloud Pub/Sub team is excited to announce the GA launch of exactly-once delivery feature. With this availability, Pub/Sub customers can receive exactly-once delivery within a cloud region and the feature provides following guarantees: No redelivery occurs once the messages has been successfully acknowledged No r