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Re: DMAPI implementation about undeliverable event messages

To: Aurelien Degremont - Stagiaire <degremont@xxxxxxxxxxx>
Subject: Re: DMAPI implementation about undeliverable event messages
From: Dean Roehrich <roehrich@xxxxxxx>
Date: Mon, 07 Mar 2005 09:48:38 -0600
Cc: linux-xfs@xxxxxxxxxxx
Sender: linux-xfs-bounce@xxxxxxxxxxx
>From:  Aurelien Degremont - Stagiaire <degremont@xxxxxxxxxxx>
>Hello,
>
>I just wanted to know how the SGI DMAPI implementation reacts when it 
>must throw a synchronous event message when no process exists to receive 
>it (but was registered before, no longer available know, application has 
>died by example).
>It looks like the requesting process is blocked. Correct?
>
>If yes, does a solution to unblocked it exist? Or is it blocked forever?

These are often blocked, but interruptible.  Otherwise they're stuck until the
HSM application is restarted so it can continue processing events.

Dean


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