EE 領域有十多 年的講師教學經驗，熟悉 SOAP/RESTful Services、Design Patterns、EJB/JPA 等 Java EE 規 格，Struts/Spring/Hibernate 等 Open Source Framework，與 JBoss AS、 GlassFish 等 Application Server。 自認為會的技術不多，但是學不會的 也不多，最擅長把老闆交代的工作， 可以做 Snapshot I/O 速度快 2.5-5 倍 ... 改造 HDFS -> HDFS2 20 / 74 Hadoop 2.x 架構 比較基本的模組： Hadoop Common (Core Libraries) Hadoop HDFS (Storage) Hadoop MapReduce (Computing Engine) Hadoop YARN (Resource Management Hadoop 24 / 74 Resource vs. Container Resource Model 可以考量到以下的細節： Rack、Host 等 Resource 名稱 CPU 幾個 Core 記憶體 硬碟大小 網路頻寬 Container 就是根據 Resource Model 核可的 Resource。 因為 YARN 可以執行的 Application 種類變多，所以 ApplicationMaster

JIT Design and Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1978 106.30 Core.Builtins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1982 106.31 Lua, and Ruby. The most significant departures of Julia from typical dynamic languages are: • The core language imposes very little; Julia Base and the standard library are written in Julia itself, including Julia? While the casual programmer need not explicitly use types or multiple dispatch, they are the core unifying features of Julia: functions are defined on different combinations of argument types, and

JIT Design and Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1924 105.29 Core.Builtins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1929 105.30 Lua, and Ruby. The most significant departures of Julia from typical dynamic languages are: • The core language imposes very little; Julia Base and the standard library are written in Julia itself, including Julia? While the casual programmer need not explicitly use types or multiple dispatch, they are the core unifying features of Julia: functions are defined on different combinations of argument types, and

JIT Design and Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1924 105.29 Core.Builtins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1929 105.30 Lua, and Ruby. The most significant departures of Julia from typical dynamic languages are: • The core language imposes very little; Julia Base and the standard library are written in Julia itself, including Julia? While the casual programmer need not explicitly use types or multiple dispatch, they are the core unifying features of Julia: functions are defined on different combinations of argument types, and

JIT Design and Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1924 105.29 Core.Builtins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1929 105.30 Lua, and Ruby. The most significant departures of Julia from typical dynamic languages are: • The core language imposes very little; Julia Base and the standard library are written in Julia itself, including Julia? While the casual programmer need not explicitly use types or multiple dispatch, they are the core unifying features of Julia: functions are defined on different combinations of argument types, and

JIT Design and Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1974 106.29 Core.Builtins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1979 106.30 Lua, and Ruby. The most significant departures of Julia from typical dynamic languages are: • The core language imposes very little; Julia Base and the standard library are written in Julia itself, including Julia? While the casual programmer need not explicitly use types or multiple dispatch, they are the core unifying features of Julia: functions are defined on different combinations of argument types, and

JIT Design and Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1974 106.29 Core.Builtins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1979 106.30 Lua, and Ruby. The most significant departures of Julia from typical dynamic languages are: • The core language imposes very little; Julia Base and the standard library are written in Julia itself, including Julia? While the casual programmer need not explicitly use types or multiple dispatch, they are the core unifying features of Julia: functions are defined on different combinations of argument types, and

JIT Design and Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1974 106.29 Core.Builtins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1979 106.30 Lua, and Ruby. The most significant departures of Julia from typical dynamic languages are: • The core language imposes very little; Julia Base and the standard library are written in Julia itself, including Julia? While the casual programmer need not explicitly use types or multiple dispatch, they are the core unifying features of Julia: functions are defined on different combinations of argument types, and

JIT Design and Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1965 105.29 Core.Builtins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1970 105.30 Lua, and Ruby. The most significant departures of Julia from typical dynamic languages are: • The core language imposes very little; Julia Base and the standard library are written in Julia itself, including Julia? While the casual programmer need not explicitly use types or multiple dispatch, they are the core unifying features of Julia: functions are defined on different combinations of argument types, and

Lua, and Ruby. The most significant departures of Julia from typical dynamic languages are: • The core language imposes very little; Julia Base and the standard library are written in Julia itself, including Julia? While the casual programmer need not explicitly use types or multiple dispatch, they are the core unifying features of Julia: functions are defined on different combinations of argument types, and the types of values is perhaps the single most powerful and central feature of the Julia language. Core operations typically have dozens of methods: julia> methods(+) # 180 methods for generic function