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Re: [Xen-devel] xenstore reboot/crash watch

from [Vincent Hanquez]

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To:	Ashwin Pankaj <ashwin.pankaj@xxxxxxx>
Subject:	Re: [Xen-devel] xenstore reboot/crash watch
From:	Vincent Hanquez <vincent.hanquez@xxxxxxxxxxxxx>
Date:	Wed, 04 Nov 2009 11:12:55 +0000
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Ashwin Pankaj wrote:

Hi,
I tried googling this one - but documentation on @releaseDomain key inxenstore seems scanty.
   1. If a client registers a watch for this key - does it get called
      every time a domain restarts / crashes ?

yes

   2. Why can't xenstore-ls, xenstore-read et al "see" this key ?

this is not a database key. this is just a special event.

        So would the following python code register watch for  restart
      events of ANY domain - 'watch = xswatch("@releaseDomain",
      watch_func, xshandle())' ?

yes it seems right.

but it's not a restart event, the event is there to notify that one ormultiple domain(s) are dead.


--
Vincent

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