backup & restore

[komal-sai-yral]

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[komal-sai-yral]

  flowchart
  IndividualUserCanister[(Individual User Canister)]
  InMemoryLocalDataStore[(In-Memory Local Data Store)]
  ListOfAllUserIndexes[1. List Of All User Indexes]
  OffChainAgent[Off-Chain Agent]
  SizeBoundLRUCacheOfUserPrincipalToCanisterMapping[2. Size-Bound LRU Cache <br/> Of User Principal <br/> To Canister Mapping]
  UserClientDevice[User Client Device]
  UserClientDeviceInternalCache[Internal Cache]
  UserIndexCanister[(User Index Canister)]
  UserClientDevice -- 1. looks up local LRU cache <br/> for user principal to canister mapping <br/> --> UserClientDeviceInternalCache
  subgraph "1. Client Internal Lookup"
    UserClientDeviceInternalCache
  end
  UserClientDevice -- 2. Requests offchain for mapping --> OffChainAgent
  subgraph "2. Off Chain Agent Lookup"
    OffChainAgent -- 1. fetches list of all user indexes <br/> during initialization from platform orchestrator --> InMemoryLocalDataStore
    OffChainAgent -- 2. fetches user principal to canister mapping <br/> for incoming requests <br/> that are not present in the cache --> UserIndexCanister
    UserIndexCanister --  upserts into local cache --> InMemoryLocalDataStore
    subgraph "Off Chain Agent Local Data Store"
      InMemoryLocalDataStore -- maintains a fixed max size cache <br/> of user principal tocanister mapping <br/> gets initialized to empty on every instance <br> gets filled up for values that it has fetched --> SizeBoundLRUCacheOfUserPrincipalToCanisterMapping
      InMemoryLocalDataStore ----> ListOfAllUserIndexes
    end
  end
  OffChainAgent -- 3. Profile Owner Based Call --> IndividualUserCanister
  subgraph "Incoming Request to Individual Canister"
    IndividualUserCanister -- Return Not current Profile Owner Error --> OffChainAgent
  end

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