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About CoreDX DDS




                                                          2012. 10




Copyright 2012 WESOME Co., Ltd. All right reserved           -1-
Data Distribution Service란?
     DDS는 리얼타임 시스템을 위한 데이터 분산 서비스이고, QoS가 가능한 데이터 중심의 publish/ Subscribe 방식의
     미들웨어 입니다.



                                      Network                                           Network
                S                                             C

                                                                                                    Data Bus

                C                                             S



                                                                        P       S       P       S      P          S
                S                                             C



                          [ Point-to-Point 방식]                                  [Publish / Subscribe 방식]


                         C       Client          S   Server                 P       Publisher   S    Subscriber



Copyright 2012 WESOME Co., Ltd. All right reserved                -2-
CoreDX DDS의 특징

        ● Real Time : RTPS(Real Time Publish-Subscribe) 표준을 지원하며, 다음과 같은 특징으로 Real Time을 구현합니다.


                        Parallelism                  BigData를 병렬로 처리할 수 있는 프로세싱 (Multi-casting)


                                                     Real-Time의 정보를 처리하며, Real-Time을 정의하는 QoS를 지원
                       Determinism


                        Throughput                   Real-time에 관련된 Fault-Tolerance를 처리합니다.
                        Availability


        ● High Performance : Bandwidth의 90% 이상을 사용함으로 최고의 Throughput 구현




Copyright 2012 WESOME Co., Ltd. All right reserved                     -3-
CoreDX DDS의 특징

        ● Scalable: 강력한 확장성을 제공하고, QoS를 통해 Fail Over를 정의 합니다.



              Publisher                                                          Publisher


       Subscriber                                                                   Subscriber
                                                     DDS #1           DDS #2

       Publisher                                                                    Publisher


             Subscriber                                       WAN                Subscriber




                                         DDS #3                         DDS #N




Copyright 2012 WESOME Co., Ltd. All right reserved              -4-
CoreDX DDS의 특징
        ● De-Centralized : DDS는 중앙 집중적 방식( Queue or Broker )이 아니기 때문에 장애 요소를 현격히 줄입니다.

        ● Auto Discovery : 특정 영역(Domain) 내에 새로운 참가자 (Subscriber, Publisher)가 인지되면 자동적으로 참여시킵니
        다.



              Publisher                                                              Publisher


       Subscriber                                                                       Subscriber

                                                         No Broker
       Publisher                                                                        Publisher


             Subscriber                                                              Subscriber

                                                          Auto Discovery


                                                     Subscriber          Publisher
                                                             New Participant
Copyright 2012 WESOME Co., Ltd. All right reserved                -5-
CoreDX DDS의 특징
          ● Interoperable Data Exchange : 이기종 시스템 및 언어간의 데이터 통신을 위해 IDL(Interface Definition Language)을
          사용하여 분산환경에서의 원활한 데이터 통신을 지원합니다.




                                             <StringMsg>                                      <StringMsg>
              Subscriber                                                                                         Publisher
                C / C++                                                                                           JAVA

    Type                Name            Value                                                           Type          Name        Value

    Structure           sender          Sender1                                                         Class         sender      Sender1

    int                 time_sent       20121016                                                        int           time_sent   20121016
                                                     <StringMsg>                      <StringMsg>
    String              Old_msgs        12345          구조체                              구조체             String        Old_msgs    12345

    String              msg             67890                                                           String        msg         67890



                                                             struct StringMsg
                                                             {
                                       Auto Generation       SenderType sender;                     Auto Generation
                                                             long time_sent;
                                                             sequence<string> old_msgs;
                                                             string msg;
                                                             };

                                                                         <IDL>
Copyright 2012 WESOME Co., Ltd. All right reserved                        -6-

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About CoreDX DDS

  • 1. About CoreDX DDS 2012. 10 Copyright 2012 WESOME Co., Ltd. All right reserved -1-
  • 2. Data Distribution Service란? DDS는 리얼타임 시스템을 위한 데이터 분산 서비스이고, QoS가 가능한 데이터 중심의 publish/ Subscribe 방식의 미들웨어 입니다. Network Network S C Data Bus C S P S P S P S S C [ Point-to-Point 방식] [Publish / Subscribe 방식] C Client S Server P Publisher S Subscriber Copyright 2012 WESOME Co., Ltd. All right reserved -2-
  • 3. CoreDX DDS의 특징 ● Real Time : RTPS(Real Time Publish-Subscribe) 표준을 지원하며, 다음과 같은 특징으로 Real Time을 구현합니다. Parallelism BigData를 병렬로 처리할 수 있는 프로세싱 (Multi-casting) Real-Time의 정보를 처리하며, Real-Time을 정의하는 QoS를 지원 Determinism Throughput Real-time에 관련된 Fault-Tolerance를 처리합니다. Availability ● High Performance : Bandwidth의 90% 이상을 사용함으로 최고의 Throughput 구현 Copyright 2012 WESOME Co., Ltd. All right reserved -3-
  • 4. CoreDX DDS의 특징 ● Scalable: 강력한 확장성을 제공하고, QoS를 통해 Fail Over를 정의 합니다. Publisher Publisher Subscriber Subscriber DDS #1 DDS #2 Publisher Publisher Subscriber WAN Subscriber DDS #3 DDS #N Copyright 2012 WESOME Co., Ltd. All right reserved -4-
  • 5. CoreDX DDS의 특징 ● De-Centralized : DDS는 중앙 집중적 방식( Queue or Broker )이 아니기 때문에 장애 요소를 현격히 줄입니다. ● Auto Discovery : 특정 영역(Domain) 내에 새로운 참가자 (Subscriber, Publisher)가 인지되면 자동적으로 참여시킵니 다. Publisher Publisher Subscriber Subscriber No Broker Publisher Publisher Subscriber Subscriber Auto Discovery Subscriber Publisher New Participant Copyright 2012 WESOME Co., Ltd. All right reserved -5-
  • 6. CoreDX DDS의 특징 ● Interoperable Data Exchange : 이기종 시스템 및 언어간의 데이터 통신을 위해 IDL(Interface Definition Language)을 사용하여 분산환경에서의 원활한 데이터 통신을 지원합니다. <StringMsg> <StringMsg> Subscriber Publisher C / C++ JAVA Type Name Value Type Name Value Structure sender Sender1 Class sender Sender1 int time_sent 20121016 int time_sent 20121016 <StringMsg> <StringMsg> String Old_msgs 12345 구조체 구조체 String Old_msgs 12345 String msg 67890 String msg 67890 struct StringMsg { Auto Generation SenderType sender; Auto Generation long time_sent; sequence<string> old_msgs; string msg; }; <IDL> Copyright 2012 WESOME Co., Ltd. All right reserved -6-