Access Trading System Manual For Computer Programmer's

  
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Server Processes

Note All Server Processes Can Be Found In The Table C_tsi_systems

Central Server (CS)

This Process is the main post box for the message system
The Trading System cannot function without it.

SQL Generator (SQLGEN)

This Process writes to a text file the SQL produced from the Trading System
The Trading System cannot function without it because a permanent record of all activity must be kept.

Corporate Database Loader (CDL)

This Process Writes The Database.
It can only function if the Sybase Service Is Active

Central Matching Engine (CME)

This Process generates trades from orders
The Trading System cannot function without it.

Central Time Server (CTS)

This Process determines the current Trading System Time
That time is used by Server and Client Processes alike.

Audit Trail Server (ATS)

This Process Reads The Database.
It can only function if the Sybase Service Is Active
Its task is to provide generic data enquiries based on the message recording tables.
If this Process is not functioning the Back Office Interface Client cannot retrieve trades and trade related information for transmission to TMS/C21
If the Price Reporting System Interface Client fails, it too depends on ATS for a successful restart.

Back Office Input Loader (BOIL)

This Process Reads The Database.
It can only function if the Sybase Service Is Active
Its task is to read the prices and limits for each contract and download them to each connected client,

Central System Print Queue (CSPQ)

This Process write to a text file the trades and allocations generated using the Trading System
Due to the high coupling of ATS, BOInterface and TMS this Process is essentially a fallback plan for any of those programs failing.

Sybase Database Service (SYBASE)

This is not really a Server Process
The Servers do depend on the database being up during start-up but after it is not mandatory.

Replication (REP)

This is not really a Server Process
It is more a record to indicate that replication should be suspended during the day data translation phase

Daily Cycle Controller (DCC)

This Process used to handle the market timer updates
The functionality has now been moved to the Central Matching Engine.

Reliable Broadcase System Service (RB_SERVER)

This Process has been deprecated.
It used to be the case that clients would connect to RB Server and a few of these Servers would connect to Central Server.

Deployment

It is the general practice that the source code is extracted from Microsoft Visual Source Safe to the directory u:\src [actually export/home/user/src in the proper unix terms] via a build machine.
There are two major working script routines

  • make
  • made.ksh

    • In the case of make this is a complier program that expects to find makefile instructions
    make clean ensures all the previous build items are removed
    make then creates all the output binaries

    The made.ksh script copies the entire build, binaries and source to an export location
    It is the responsibility of the Unix Administrators to copy these files from the developer environment to the production environment

    The detailed how to create servers and clients can be found in the build document.

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