On 26/07/2012 17:05, Bastian Scholz wrote: > Am 2012-07-26 16:39, schrieb icez network: >> sheepdog v0.4.0 change the storage backend from 'simple' to 'farm' so >> that >> you required some manual task from 'good practices' (especially >> converting >> the storage backend from simple to farm). > > I guess thats not the problem (definitely not in my environment ;-) > > I am using farm as storage, but if I understand David correct, wants > to update only the debian package (both sheepdog 0.4, but with > different startup scripts) so he already had farm storage... yup, that's the idea > The problem I think is, that he kills the sheeps manually instead > of a cluster shutdown. In this case it seems to me, that the sheeps > invalidate their data. If he kills all sheep at the same time, than > no sheep with valid data remains.... > > A similar problem happens to me, if I had a complete network error > and my three nodes cant see each other. I didnt find a way to > recover from this situation... yup (again). The problem is that it is very easy to fall in this kind of situation where you loose all the data... Which a clustered system like sheepdog should prevent from. I guess all this is first a problem of documentation (missing howtos on cluster management tasks), and then a matter of implementing seat belts in sheepdog (a bit more difficult to do, but required for 1.0, IMHO). > Cheers > > Bastian > > > -- -- David DOUARD LOGILAB +33 1 45 32 03 12 david.douard at logilab.fr +33 1 83 64 25 26 http://www.logilab.fr/id/david.douard Formations - http://www.logilab.fr/formations Développements - http://www.logilab.fr/services Gestion de connaissances - http://www.cubicweb.org/ -------------- next part -------------- A non-text attachment was scrubbed... Name: david_douard.vcf Type: text/x-vcard Size: 302 bytes Desc: not available URL: <http://lists.wpkg.org/pipermail/sheepdog-users/attachments/20120726/8346a95c/attachment.vcf> -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 262 bytes Desc: OpenPGP digital signature URL: <http://lists.wpkg.org/pipermail/sheepdog-users/attachments/20120726/8346a95c/attachment.pgp> |