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system-programming-at-twitter.org

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Systems Programming at Twitter

http://monkey.org/~marius/talks/twittersystems/

主要围绕下面几个方面:

  • Clean concurrent programming model: simple, safe, and modular programs; uniform programming model. #note: about scala.
  • Message passing architecture: High concurrency, fault tolerant, performant. #note: about finagle.
  • Protocol support: largely agnostic, support HTTP, thrift, memcache, redis, MySQL…
  • Observability: for diagnostics, profiling, optimization 个人感觉在这方面做得不错值得借鉴和学习:
    • 统计数据可以通过http接口访问到(ostrich),并且由viz展现出来。
    • rpc交互追踪可以通过dapper的开源实现zipkin完成。
    • profile数据同样可以通过http接口访问到,使用pprof来做分析。
    • Tracing, cancellation, thread-biasing pools, etc. with zero user code change 并且这些功能不需要用户修改代码