Finagle 最新事情 #kwkni_scala

Finagle 最新事情（「怖くないScala勉強会」LT 発表、2013/10/19）

http://connpass.com/event/3420/

Keyword: Scala, Netty, Finagle

Transcript

1. Finagle ࠷৽ࣄ৘ Ԭຊ ༤ଠ (@okapies)
2. શࠃ 100 ສਓͷ Finagle Ϣʔβͷ Έͳ͞Μʂ
3. Ԭຊ ༤ଠ (@okapies) Scala ؔ࿈ࢿྉͷ຋༁Λ͍͔ͭ͘΍ͬͯ·͢ “Effective Scala” (http://twitter.github.io/effectivescala/index- ja.html) “໋ྩܕͷίʔϧόοΫɺؔ਺ܕͷϓϩϛε” (https:// gist.github.com/okapies/5354929) "Cake Pattern: The Bakery from the Black Lagoon" (http:// okapies.hateblo.jp/entry/2013/07/15/232456) ”Scala Conference in Japan 2013” ελοϑ
4. Apache Kafka
5. finagle-kafka
6. Q. Finagle ͬͯ ͍· Ͳ͏ͳͬͯΔͷʁ
7. A. Θ͔ΒΜ
8. ࠷৽൛: 6.7.1 Netty 4 ରԠ ৽ Client/Server API (from v6) ෼͔ͬͯΔ͜ͱ
9. Netty 4 ରԠ
10. https://blog.twitter.com/2013/netty-4-at-twitter-reduced-gc-overhead
11. Netty ίϛϡχςΟͱີʹ࿈ܞͯ͠ੑೳվળ Event Object ഇࢭɻAPI ͕ v3 ͱඇޓ׵ʹ Buffer Pool ͰϝϞϦׂ౰ΛࣗલͰ؅ཧ 㱺 GC ස౓͕ 1/5 ʹɻϝϞϦଳҬ෯ͷফඅΛ 50% ࡟ݮɻ
12. Finagle on Netty 4?
13. ࠷ۙ Netty 3 ͔Βͷ decouple Λ΍ͬͨ ࢼͯ͠Έ͍ͨͳΒ DefaultClient ͱ DefaultServer ݟΕ
14. ৽ Client/Server API
15. v6 ϦϦʔε͔࣌Βਫ໘ԼͰίπίπ΍ͬͯͨͬΆ͍ ·ͩਖ਼ࣜʹ͸ެ։͞Εͯͳ͍͕ɺ΋͏৮ΕΔঢ়ଶ API ͸·ͩ·ͩྲྀಈతʁ
16. // Old API val cli: Service[HttpRequest, HttpResponse] = ClientBuilder() .codec(Http()) .hosts(new InetSocketAddress(8080)) .hostConnectionLimit(1) .build() val req = new DefaultHttpRequest( HttpVersion.HTTP_1_1, HttpMethod.GET, "/") val res: Future[HttpResponse] = cli(req)
17. // New API! val cli: Service[HttpRequest, HttpResponse] = Http.newService("localhost:8080") val req = new DefaultHttpRequest( HttpVersion.HTTP_1_1, HttpMethod.GET, "/") val res: Future[HttpResponse] = cli(req)
18. ϩʔυόϥϯε΍ίωΫγϣϯϓʔϧΛ࣮૷ࡁ Codec ͷࢦఆ͸͜ͷ΁Μ
19. Client ʹ mix-in ͢Δ Richʢ͜Θ͘ͳ͍ʣAPI Λఏڙ
20. http://twitter.github.io/finagle/guide/
21. Thanks!