Open DACS & RFA

pratik.p.mehta
pratik.p.mehta
in TREP APIs

I have a user (logged in from same IP) which is using two different applications A and B

Application A uses Open Dacs for entitlement checking to get streaming market data

Application B uses UPA to get streaming market data

Now, if Application A were to disconnect from DACS (using logout functionality from open dacs), what happens to the session from Application B

Does Application B get disconnected as well and stop streaming data?

What is the ideal way of managing these situations where a same user using same IP uses two different ways to entitle and stream data?

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Best Answer

  • umer.nalla
    umer.nalla
    Answer ✓

    Hi @pratik.p.mehta

    In terms of connections - the Open DACS API connects to a Dacs Sink Daemon, whereas your UPA consumer connects to a provider / source - typically the ADS (Advanced Distribution Server).

    The ADS server will be unaware of any connection your other application has with Dacs Sink Daemon.

    Even from the same UPA application, you could if required, create two separate logins + connections to the same server. When you logged out + closed one connection, the other should continue to stream data. Each login is considered a separate event stream.

Answers

  • umer.nalla
    umer.nalla

    Hi @pratik.p.mehta

    The UPA application B should have its own connection / mount to the ADS - independent of Application A.

    Each login is treated as a separate mount / connection - so disconnecting one should not affect the other.

  • pratik.p.mehta
    pratik.p.mehta

    Even though they are same IP and same DACS ID?

    So if the Application A which uses Open DACS issues a disconnect() the other Application B should not be impacted right?

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