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»Forums Index »Archive (2017 and earlier) »DTN.IQ Client Software Support »Why both Update and Summary messages?
Author Topic: Why both Update and Summary messages? (2 messages, Page 1 of 1)

CBrauer
-Interested User-
Posts: 32
Joined: Aug 18, 2004
Posted: Feb 7, 2013 02:15 PM          Msg. 1 of 2
Hey,

I'm confused by the need to have both Update (Q) and Summary (P) messages.

Since they both have the same format:

1. why two records for the same information?
2. are they used differently? If so... how?

Thanks in advance.

Charles
Charles Brauer
CBrauer@CypressPoint.com

DTN_Steve_S
-DTN Guru-
Posts: 2093
Joined: Nov 21, 2005
Posted: Feb 7, 2013 03:26 PM          Msg. 2 of 2
The difference is that update messages are market driven (meaning we recieved an update from the exchange which resulted in the message) while summary messages originate from our server farms (refresh/initial snapshot).
 

 

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