Using pairs with different group names is like multiple single pairs. Only active brokers with the same group name affect quorum voting.
Regards, Domenico On Wed, 1 Oct 2025 at 15:25, Gunawan, Rahman (GSFC-SEWP)[Halvik Corp] <[email protected]> wrote: > I created 3 pair of servers, each pair has different group name. > > > > *Rahman Gunawan* > > *SITSS Software Developer* > > NASA SEWP / SITSS > > HALV*I*K Corporation > > 7601 Ora Glen Dr, Greenbelt, MD 20770 > > C: 240.444.6003 > O: 301.614.5257 > > [email protected] > > > > > > *From:* Domenico Francesco Bruscino <[email protected]> > *Sent:* Wednesday, October 1, 2025 9:10 AM > *To:* [email protected] > *Subject:* [EXTERNAL] [BULK] Re: check-for-active-server not working > > > > *CAUTION:* This email originated from outside of NASA. Please take care > when clicking links or opening attachments. Use the "Report Message" > button to report suspicious messages to the NASA SOC. > > > > A single pair of brokers in an HA replication is insufficient to prevent > a split brain. There are several different configurations that can mitigate > split brain, for further details see > https://activemq.apache.org/components/artemis/documentation/latest/network-isolation.html#network-isolation-split-brain > > > > Regards, > Domenico > > > > On Wed, 1 Oct 2025 at 14:45, Gunawan, Rahman (GSFC-SEWP)[Halvik Corp] < > [email protected]> wrote: > > Hi, > > I set *check-for-active-server *to true but when the primary shutdown, > the backup becomes primary. However; when I started the primary server > that was shutdown, it became active, not checking if there are any active > servers so it cause split brain issue. Attached is the broker.xml. > > > > Thanks > > > > *Rahman Gunawan* > > *SITSS Software Developer* > > NASA SEWP / SITSS > > HALV*I*K Corporation > > 7601 Ora Glen Dr, Greenbelt, MD 20770 > > C: 240.444.6003 > O: 301.614.5257 > > [email protected] > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > For further information, visit: https://activemq.apache.org/contact > >
