ebxml-msg — archive

Re: Need volunteer to draft definition of reliable messaging,wasRE:reliable messaging - hop by hop

From: System
To: [email protected]
Date: Mon, 03 Sep 2001 22:53:00 -0000

Date: Mon, 03 Sep 2001 21:01:49 -0400 From: Martin W Sachs <[email protected]> MWS2: If the partition happens between the time the To party MSH reads the message and the time it sends the ACK, for a single hop, the To MSH will know that it couldn't send the ACK and (hopefully) retry later. Actually, that brings up an important question about our failure model. In a single-hop scenario, if the communication protocol is HTTP, the sender does know that it can't send. But in the case of using Email (SMTP) as a communication protocol, the communication layer can *itself* be multi-hop (using store-and-foward, a.k.a. "indirect", routing, perhaps directed by MX records from the DNS, etc), and so it may not be clear to the sender whether the message could or could not be sent.