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Date:         Wed, 19 Jun 2002 13:14:49 +0100
Reply-To:     "Z39.50 Next-Generation Initiative" <[log in to unmask]>
Sender:       "Z39.50 Next-Generation Initiative" <[log in to unmask]>
From:         Robert Sanderson <[log in to unmask]>
Subject:      Re: Betr.: SessionID Summary
Comments: To: "Z39.50 Next-Generation Initiative" <[log in to unmask]>
Comments: cc: [log in to unmask]
In-Reply-To:  <[log in to unmask]>
Content-Type: TEXT/PLAIN; charset=US-ASCII

> >In response to Ray. I prefer sessionid's and resultsetid's > >to be independent of each other, but the server is of > >course free to make the sessionid part of the resultsetid. > My question is about the relationship of result sets and sessions (not > their respective ids). Does a result set expire when its session does, even > though the result set ttl hasn't expired? (Rob say it does.) This Rob thinks that they should as well, with the following question: How does a session actually expire? Will sessionids have a TTL as well? In which case a resultset with a TTL longer than the session's TTL is just incorrect. If they don't have a TTL, then are they just silently expired with no warning? In which case I would suggest that sessions shouldn't be expired while they have resultsets that still have time left to live as this is contrary to the only information presented to the client. Obviously if the implementation maps a session on to a Z Association and the connection to the Z server goes down, then the SRW server is in an error state regardless. (Is there a list of SR[WU] diagnostics somewhere, by the way?) Rob -- ,'/:. Rob Sanderson ([log in to unmask]) ,'-/::::. http://www.o-r-g.org/~azaroth/ ,'--/::(@)::. Special Collections and Archives, extension 3142 ,'---/::::::::::. Twin Cathedrals: telnet: liverpool.o-r-g.org 7777 ____/:::::::::::::. WWW: http://liverpool.o-r-g.org:8000/ I L L U M I N A T I


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