Nice work Dave! Are you interested in merging into the source tree of corosync? We are always looking for more test cases or examples in the source tree. The only thing holding this is your permissions and the code licensed under the corosync's BSD license (rather then GPL).
Regards -steve On Fri, 2009-05-29 at 13:51 -0500, David Teigland wrote: > I wrote a new program cpgx to test the virtual synchrony guarantees of > corosync and cpg, > > http://fedorapeople.org/gitweb?p=teigland/public_git/dct-stuff.git;a=summary > > It joins a cpg, then randomly sends messages, leaves or exits, and repeats. > This all creates a random sequence of messages and configuration changes > (events). Everyone keeps a history of all events, and continually compares > their history against everyone else. This event history is the replicated > state of the program, upon which all future state is based, and which needs to > be synced to a node when it joins (state transfer). If any node sees a > different event sequence or content from another (violating VS), it should be > quickly detected and easy to see exactly what was wrong. > > It's simple to run, just start cpgx on up to 8 nodes running corosync, one > instance per node; nodes must have nodeid's between 1 and 255. If there's a > problem it will stop running with an ERROR message. > > It only tries to prove VS behavior, but it incidentally tests other aspects of > corosync also, e.g. it quickly reproduces this recent regression: > https://lists.linux-foundation.org/pipermail/openais/2009-May/012138.html > > With the non-default -d1 option it will include approximated node failures in > the random mix of events by periodically killing corosync and restarting it > with cman_tool. (I may later use iptables to simulate more realistic node > failures.) It's not default because it often causes corosync to hang; > apparently one of those incidental other bugs. > > Dave > > _______________________________________________ > Openais mailing list > [email protected] > https://lists.linux-foundation.org/mailman/listinfo/openais _______________________________________________ Openais mailing list [email protected] https://lists.linux-foundation.org/mailman/listinfo/openais
