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System Component Architecture

The HFS Architecture diagram illustrates how HFS-related components interact and communicate with one another.

HFS-related components consist of:

  • Historical Fill Server: Records fills and writes them to the database.
  • TT Gateway (with Fill Server): Sends fills to the HFS upon request.
  • SQL Database: Stores fill data.
  • X_RISK®: Requests the display of historical fill data.
  • TT User Setup Server: Used to configure user logins, including the HFS logins (optional).

Note: If the Historical Fill Server goes down (even during trading hours), any missed fills are downloaded from the Fill Server when it’s restarted. TT does not support HFS data replication.