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Subject: Re: [ws-rx] NEW ISSUE: Remove LastMessage
- From: Christopher B Ferris <chrisfer@us.ibm.com>
- To: Anish Karmarkar <Anish.Karmarkar@oracle.com>
- Date: Wed, 30 Nov 2005 19:00:24 -0500
Anish,
Please see my comments below.
Cheers,
Christopher Ferris
STSM, Emerging e-business Industry Architecture
email: chrisfer@us.ibm.com
blog: http://webpages.charter.net/chrisfer/blog.html
phone: +1 508 377 9295
Anish Karmarkar <Anish.Karmarkar@oracle.com>
wrote on 11/30/2005 06:16:53 PM:
[...]
>
> 3) What I'm saying is the following -
> When:
> a) an LM marker is present in the last message, and
> b) the RMD receives all the messages upto and including the message
with
> the LM marker. I.e. all the messages in the range [1, Seqno(LM-message)]
> then:
> at that point the RMD knows that it has received all the messages
in the
> sequence. In certain implementations it can make the determination
that
> it no longer needs the message store (it still needs to be around
to ack
> messages) -- assuming that the messages have been successfully delivered
> to the AD. i.e., it can give up its message store resource at this
point
> but *not* terminate the Sequence.
Why would you keep messages in the store that have
been delivered? Wouldn't a
sensible implementation delete the messages from the
store once they had
been successfully delivered? What am I missing?
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