On Tue, 2008-11-25 at 10:19 -0800, David Mathog wrote: > What would be a good tool for logging cluster specific messages, and > nothing else, on a single server? The purpose of this is to let > computer nodes send messages like "node XXX hardware failure, shutting > down", or "node xxx, boot sequence completed" messages to a central > repository. But I do not want any other messages logged to the > repository from the clients. > > I suppose syslog could be used for this, but the trick would be to > choose a facility/priority for it such that nothing other than the > desired cluster messages was ever sent. In other words, something > like: > > logger -p cluster.info "this is a cluster message" > > Unfortunately there is no "cluster" facility, and I do not know > which one of the 20 or so defined facilities (auth, authpriv... local7) > will never be used by some other part of the client OS. >
If you use syslog-ng as your central syslog server you can filter messages based on strings. So if you preface all your cluster messages with CLUSTER_MESSAGE or somesuch you can filter them to a custom destination which can be a log file or a command, or both. for examples see: http://www.campin.net/newlogcheck.html -- Huw Lynes | Advanced Research Computing HEC Sysadmin | Cardiff University | Redwood Building, Tel: +44 (0) 29208 70626 | King Edward VII Avenue, CF10 3NB _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
