Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Sep 15, 2008, at 11:04 AM, Lars Ellenberg wrote: > On Mon, Sep 15, 2008 at 10:26:46AM +0200, Andrew Beekhof wrote: >> On Mon, Sep 15, 2008 at 08:28, Lars Ellenberg <lars.ellenberg at linbit.com >> > wrote: >>> >>> if we set aside confused admins for the moment, >>> and assume CRM is the only entity promoting/demoting drbd. >> >> A very important assumption. >> >> Without it, it doesn't matter how much redundancy you add, you'll >> always have a split brain/personality. >> >> You can't put the cluster in charge, tell it to go in one direction, >> and then start trying to go off in another. That path leads to >> madness for the cluster and the admin. > > Absolutely. No disagreement there at all. Cool. Just wanted to make sure we're all on the same page... it wouldn't have been the first time someone went down the "other" path :-) > > > The "outdated" flag stored in drbd metadata does help to remind the > confused admin [1] that he meant to type that command in the other > terminal window. > > That is all I wanted to say there. > I just meant to point out this "subtile" difference > in _where_ we store the information that this node is out-of-date. Makes sense. > > > [1] who tries desperately to rescue what he can after a minor > catastrophe, at 3:17 am Saturday morning ouch