Re: DMAPI implementation about undeliverable event messages

[Aurelien Degremont - Stagiaire <degremont@xxxxxxxxxxx>]

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

Yes, i saw this, no other solutions ?

There's an issue with the DM_EVENT_UNMOUNT event.
If the HSM application is unavailable, you try to unmount a managed 
filesystem, the filesystem will start to be unmount, the event msg will 
be sent, but not received, so the unmount call will be blocked.
Unfortunately, the HSM application will never be able to re-register for 
the UNMOUNT event for this filesystem, because this filesystem is no 
longer available as a "loaded and dmapi-compliant" filesystem (we cannot 
get the filesystem handle anymore), but it's also not unloaded. The 
system is quite broken for this FS and i see no solution to solve the 
situation...

Am i clear ? :)


Aurelien