Just create 3 pairs.. connected in clustering. The other option would be to develop a manager with zoo keeper.. that's not currently supported. but we could work together if you're interested. You will still need 3 nodes on zookeeper to manage your broker.
On Tue, May 16, 2017 at 10:51 AM, martk <[email protected]> wrote: > How do I have to set up the e.g. 4 nodes? One live (master) and 3 backup > (slave)? And would this solve the problem of two live broker (the steps to > reproduce are in first post)? > > > clebertsuconic wrote >> There isn't much we can do with a single backup pair. >> >> On this case you will need 3 pairs... >> >> or maybe you could embed zookeeper somehow. We had thought about using >> zookeeper (which will require more than 3 nodes to elect quorum >> anyways). >> >> >> We can only guarantee that a single backup/live pair is not isolated >> on the network. Now if you want to break the system, sure you can do >> it. >> >> if you had more than 3 nodes the quorum would decide to set the node down. >> >> On Tue, May 16, 2017 at 9:50 AM, martk <[email protected]> wrote: >>> No, I would like to simulate a busy/overloaded server (e.g. the broker >>> process is not working correctly). The network is all the time available >>> and >>> the server is also answering a ping. >>> >>> >>> jbertram wrote >>>> I realize you're attempting to simulate a network outage, but from what >>>> I >>>> understand using SIGSTOP isn't necessarily an accurate way to do it. It >>>> was >>>> explained to me awhile back by a colleague who had done quite a bit of >>>> work >>>> in this area that SIGSTOP works differently at the socket level from >>>> something like pulling a network cable out of a NIC or even killing the >>>> process. See more here [1]. In mention this because you might want to >>>> develop an alternate testing mechanism to more accurately simulate a >>>> network >>>> outage use-case. >>>> >>>> >>>> Justin >>>> >>>> [1] >>>> https://unix.stackexchange.com/questions/202104/what-happens-to-requests-to-a-service-that-is-stopped-with-sigstop >>> >>> Quoted from: >>> http://activemq.2283324.n4.nabble.com/Artemis-HA-cluster-with-replication-tp4725734p4726194.html >>> >>> >>> >>> >>> -- >>> View this message in context: >>> http://activemq.2283324.n4.nabble.com/Artemis-HA-cluster-with-replication-tp4725734p4726197.html >>> Sent from the ActiveMQ - User mailing list archive at Nabble.com. >> >> >> >> -- >> Clebert Suconic > > > > > > -- > View this message in context: > http://activemq.2283324.n4.nabble.com/Artemis-HA-cluster-with-replication-tp4725734p4726200.html > Sent from the ActiveMQ - User mailing list archive at Nabble.com. -- Clebert Suconic
