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          Yahoo! s4和Twitter storm的粗略比較

          Posted on 2011-11-08 22:25 dennis 閱讀(13178) 評論(14)  編輯  收藏 所屬分類: javaHadoop與分布式
          Items\Projects
          Yahoo! s4
          Twitter Storm
          協(xié)議
          Apache license 2.0
          Eclipse Public License 1.0
          開發(fā)語言
          Java
          Clojure,Java,Clojure編寫了核心代碼
          結(jié)構(gòu)
          去中心化的對等結(jié)構(gòu)
          有中心節(jié)點(diǎn)nimbus,但非關(guān)鍵
          通信
          可插拔的通訊層,目前是基于UDP的實(shí)現(xiàn) 基于facebook開源的thrift框架
          事件/Stream
          <K,A>序列,用戶可自定義事件類 提供Tuple類,用戶不可自定義事件類,
          但是可以命名field和注冊序列化器
          處理單元 Processing Elements,內(nèi)置PE處理
          count,join和aggregate等常見任務(wù)
          Bolt,沒有內(nèi)置任務(wù),提供IBasicBolt處理
          自動ack
          第三方交互
          提供API,Client Adapter/Driver,第三方客戶端輸入或者輸出事件 定義Spout用于產(chǎn)生Stream,沒有標(biāo)準(zhǔn)輸出API
          持久化 提供Persist API規(guī)范,可根據(jù)頻率或者次數(shù)做
          持久化
          無特定API,用戶可自行選擇處理
          可靠處理 無,可能會丟失事件 提供對事件處理的可靠保證(可選)
          路由EventType + Keyed attribute + value匹配
          內(nèi)置count,join和aggregate標(biāo)準(zhǔn)任務(wù)
          Stream Groupings:
          Shuffle,Fields,All,Global,None,Direct
          非常靈活的路由方式
          多語言支持 暫時(shí)只支持Java多語言支持良好,本身支持Java,Clojure,
          其他非JVM語言通過thrift和進(jìn)程間通訊
          Failover
           部分支持,數(shù)據(jù)無法failover 部分支持,數(shù)據(jù)同樣無法failover
          Load Balance
          不支持 不支持
           并行處理 取決于節(jié)點(diǎn)數(shù)目,不可調(diào)節(jié) 可配置worker和task數(shù)目,storm會盡量將worker和task均勻分布
          動態(tài)增刪節(jié)點(diǎn)不支持
           支持
          動態(tài)部署
           不支持 支持
          web管理 不支持 支持
          代碼成熟度 半成品 成熟
          活躍度 低 活躍
          編程 編程 + XML配置
            純編程
          參考文檔 http://docs.s4.io/https://github.com/nathanmarz/storm/wiki/
          http://xumingming.sinaapp.com/category/storm/ (非常好的中文翻譯)

          評論

          # re: Yahoo! s4和Twitter storm的粗略比較  回復(fù)  更多評論   

          2012-02-10 11:04 by soon
          你好,請問一下,為什么s4和storm都不提供load balance?是因?yàn)闆]有這個(gè)必要嗎?

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