In the first half, we give an introduction to modern serialization systems, Protocol Buffers, Apache Thrift and Apache Avro. Which one does meet your needs?
In the second half, we show an example of data ingestion system architecture using Apache Avro.
In the first half, we give an introduction to modern serialization systems, Protocol Buffers, Apache Thrift and Apache Avro. Which one does meet your needs?
In the second half, we show an example of data ingestion system architecture using Apache Avro.
2017/9/7 db tech showcase Tokyo 2017(JPOUG in 15 minutes)にて発表した内容です。
SQL大量発行に伴う処理遅延は、ミッションクリティカルシステムでありがちな性能問題のひとつです。
SQLをまとめて発行したり、処理の多重度を上げることができれば高速化可能です。ですが・・・
AP設計に起因する性能問題のため、開発工程の終盤においては対処が難しいことが多々あります。
そのような状況において、どのような改善手段があるのか、Oracleを例に解説します。
Tried to Provide IPv6 Only Network Stealthily at CEDEC 2015Yuya Rin
At the CEDEC 2015 conference in Japan, the volunteer network operations team provided a Wi-Fi network that was IPv6-only by default, without explicitly announcing it, in order to test apps and raise awareness of upcoming IPv6 requirements. Over 1,700 devices connected to the network, with 65% being Apple devices. While many devices worked with the IPv6-only network, some like Android phones could not connect due to lack of support for required IPv6 features. The unconventional network drew attention from game developers and raised awareness of supporting next-generation networks, with some starting to test their apps as a result. Traffic analysis found around 25% was IPv6, showing potential savings if mobile carriers deployed IPv6 networks.
2017/9/7 db tech showcase Tokyo 2017(JPOUG in 15 minutes)にて発表した内容です。
SQL大量発行に伴う処理遅延は、ミッションクリティカルシステムでありがちな性能問題のひとつです。
SQLをまとめて発行したり、処理の多重度を上げることができれば高速化可能です。ですが・・・
AP設計に起因する性能問題のため、開発工程の終盤においては対処が難しいことが多々あります。
そのような状況において、どのような改善手段があるのか、Oracleを例に解説します。
Tried to Provide IPv6 Only Network Stealthily at CEDEC 2015Yuya Rin
At the CEDEC 2015 conference in Japan, the volunteer network operations team provided a Wi-Fi network that was IPv6-only by default, without explicitly announcing it, in order to test apps and raise awareness of upcoming IPv6 requirements. Over 1,700 devices connected to the network, with 65% being Apple devices. While many devices worked with the IPv6-only network, some like Android phones could not connect due to lack of support for required IPv6 features. The unconventional network drew attention from game developers and raised awareness of supporting next-generation networks, with some starting to test their apps as a result. Traffic analysis found around 25% was IPv6, showing potential savings if mobile carriers deployed IPv6 networks.
This technical document covers networking and fiber optic topics, providing diagrams of components, equations for calculations, and specifications for cable categories and their bandwidth capabilities. Details include networking protocols and reference information appearing to