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Anatomy of a
  Request
 get(“demo/anatomy”)
Anatomy of a
           Request
          get(“demo/anatomy”)
client
 Riak
Anatomy of a
           Request
          get(“demo/anatomy”)
client
 Riak

             Get Handler (FSM)
Anatomy of a
           Request
          get(“demo/anatomy”)
client
 Riak
                                 hash(“demo/anatomy”)
             Get Handler (FSM)        == 10, 11, 12
Anatomy of a
                          Request
                             get(“demo/anatomy”)
          client
           Riak
                                                          hash(“demo/anatomy”)
                                Get Handler (FSM)              == 10, 11, 12




    Coordinating node
        Cluster




6        7         8     9      10     11       12   13       14       15        16
                                     The Ring
Anatomy of a
                          Request
                              get(“demo/anatomy”)
          client
           Riak

                                 Get Handler (FSM)

                   get(“demo/anatomy”)
    Coordinating node
        Cluster




6        7         8      9      10        11       12   13   14   15   16
                                         The Ring
Anatomy of a
                          Request
                             get(“demo/anatomy”)
          client
           Riak

    R=2                         Get Handler (FSM)



    Coordinating node
        Cluster




6         7        8     9      10     11       12   13   14   15   16
                                     The Ring
Anatomy of a
                          Request
                             get(“demo/anatomy”)
          client
           Riak

    R=2       v1                Get Handler (FSM)



    Coordinating node
        Cluster




6         7        8     9      10     11       12   13   14   15   16
                                     The Ring
Anatomy of a
                 Request
                    get(“demo/anatomy”)
      client
       Riak

R=2      v1    v2      Get Handler (FSM)
Anatomy of a
                 Request
                    get(“demo/anatomy”)
      client                        v2
       Riak

R=2            v2      Get Handler (FSM)
Anatomy of a
  Request
 get(“demo/anatomy”)
              v2
Read Repair
                                 get(“demo/anatomy”)
          client                                 v2
           Riak

    R=2       v1        v2          Get Handler (FSM)



    Coordinating node
        Cluster




6         7        8         9      10     11     12    13   14   15   16
                                    v1            v2
Read Repair
                                 get(“demo/anatomy”)
          client                                 v2
           Riak

    R=2                 v2          Get Handler (FSM)



    Coordinating node
        Cluster




6         7        8         9      10     11     12    13   14   15   16
                                    v1            v2
Read Repair
                                 get(“demo/anatomy”)
          client                                 v2
           Riak

    R=2                 v2          Get Handler (FSM)



    Coordinating node
        Cluster




6         7        8         9      10     11     12    13   14   15   16
                                    v1     v1     v2
Read Repair
                                 get(“demo/anatomy”)
          client                                      v2
           Riak

    R=2                 v2             Get Handler (FSM)



    Coordinating node
        Cluster
                                  v2        v2


6         7        8         9         10        11    12   13   14   15   16
                                       v2        v2    v2

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Anatomy of a Request

  • 1. Anatomy of a Request get(“demo/anatomy”)
  • 2. Anatomy of a Request get(“demo/anatomy”) client Riak
  • 3. Anatomy of a Request get(“demo/anatomy”) client Riak Get Handler (FSM)
  • 4. Anatomy of a Request get(“demo/anatomy”) client Riak hash(“demo/anatomy”) Get Handler (FSM) == 10, 11, 12
  • 5. Anatomy of a Request get(“demo/anatomy”) client Riak hash(“demo/anatomy”) Get Handler (FSM) == 10, 11, 12 Coordinating node Cluster 6 7 8 9 10 11 12 13 14 15 16 The Ring
  • 6. Anatomy of a Request get(“demo/anatomy”) client Riak Get Handler (FSM) get(“demo/anatomy”) Coordinating node Cluster 6 7 8 9 10 11 12 13 14 15 16 The Ring
  • 7. Anatomy of a Request get(“demo/anatomy”) client Riak R=2 Get Handler (FSM) Coordinating node Cluster 6 7 8 9 10 11 12 13 14 15 16 The Ring
  • 8. Anatomy of a Request get(“demo/anatomy”) client Riak R=2 v1 Get Handler (FSM) Coordinating node Cluster 6 7 8 9 10 11 12 13 14 15 16 The Ring
  • 9. Anatomy of a Request get(“demo/anatomy”) client Riak R=2 v1 v2 Get Handler (FSM)
  • 10. Anatomy of a Request get(“demo/anatomy”) client v2 Riak R=2 v2 Get Handler (FSM)
  • 11. Anatomy of a Request get(“demo/anatomy”) v2
  • 12. Read Repair get(“demo/anatomy”) client v2 Riak R=2 v1 v2 Get Handler (FSM) Coordinating node Cluster 6 7 8 9 10 11 12 13 14 15 16 v1 v2
  • 13. Read Repair get(“demo/anatomy”) client v2 Riak R=2 v2 Get Handler (FSM) Coordinating node Cluster 6 7 8 9 10 11 12 13 14 15 16 v1 v2
  • 14. Read Repair get(“demo/anatomy”) client v2 Riak R=2 v2 Get Handler (FSM) Coordinating node Cluster 6 7 8 9 10 11 12 13 14 15 16 v1 v1 v2
  • 15. Read Repair get(“demo/anatomy”) client v2 Riak R=2 v2 Get Handler (FSM) Coordinating node Cluster v2 v2 6 7 8 9 10 11 12 13 14 15 16 v2 v2 v2

Notes de l'éditeur

  1. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  2. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  3. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  4. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  5. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  6. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  7. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  8. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  9. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  10. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  11. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  12. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  13. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  14. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  15. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  16. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  17. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  18. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  19. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  20. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  21. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  22. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  23. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  24. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  25. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  26. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
  27. 1) Client requests a key\n2) Get handler starts up to service the request\n3) Hashes key to its owner partitions (N=3)\n4) Sends similar “get” request to those partitions\n5) Waits for R replies that concur (R=2)\n6) Resolves the object, replies to client\n7) Third reply may come back at any time, but FSM replies as soon as quorum is satisfied/violated\n
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