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> -----Original Message----- > From: opendlm-devel-admin@xxxxxxxxxxxxxxxxxxxxx > [mailto:opendlm-devel-admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf > Of Stanley Wang > Sent: Saturday, May 01, 2004 6:34 AM > To: OpenDLM-DEV; John T Devine > Cc: Zickus II, Don; OpenGFS-DEV > Subject: RE: [ogfs-dev]RE: [Opendlm-devel] ODLM/OGFS Recovery > > Hi John, > > Thanks for your great comments! > > On Fri, 2004-04-30 at 15:04, Devine, John T wrote: > > Don, locks granted due to the owner of the blocking lock > releasing them > > due to node failure MUST be granted with an invalidated > lock value block > > if the blocking mode was PW or stronger. If this is not so, then > > unless dead man locks had a mechanism guaranteeing they are > granted 1st > > (they don't), any OpenDLM user could wind up with a > consistency problem > > as resources could be granted before node failure detected. > > It's exactly my concern for OpenGFS. > I think this is handled during ODLM's lock recovery process, which invalidates LVBs that might have been altered by a dead node. See clmr_clean() and clmr_lkvlb(). -- Ben -- Opinions are mine, not Intel's ------------------------------------------------------- This SF.Net email is sponsored by: Oracle 10g Get certified on the hottest thing ever to hit the market... Oracle 10g. Take an Oracle 10g class now, and we'll give you the exam FREE. http://ads.osdn.com/?ad_id149&alloc_id?66&opÌk _______________________________________________ Opengfs-devel mailing list Opengfs-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/opengfs-devel