Hi, I'm trying the latest deb package made by Jens, and I encounter problems: I cannot make the cluster accept IO. My main problem is that I find it very easy to loose my cluster; almost every time I try to shutdown the cluster, it ends with a situation where the cluster is corrupted (with "Failed to read object 805a6c0500000000 No object found" kind of messages). I lost the data when I upgraded the deb packages for example, as I use in this context a cssh session, so all nodes are upgraded at the same time, and the upgrade provoque a restart of the sheepdog service. Is this behavior somewhat expected, since I do not follow some kind of "good practices"? What are theses good practices? Is sheepdog "compatible" with sysadmin automating tools like puppet or salt (that do propagate changes to several nodes at a time)? How can I configure something like automatic shutdown on power outage (I'm using apcupsd)? How do I restart my cluster after a shutdown? Can I just fire a "service sheepdog start" in a cssh session? I guess these questions are also somewhat related to the discussion about the possibility to sheepdog to detect that a node is down for a short while, and not really failed, etc. So, how do you guys manage your sheepdog clusters so you don't loose your data? -- 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/20120726/2fe52b8a/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/20120726/2fe52b8a/attachment.pgp> |