You can use zookeeper in a single live backup pair. And the last active host is the one that should be active first.
On Wed, Oct 26, 2022 at 5:13 AM Gašper Čefarin <gasper.cefa...@actual-it.si> wrote: > Sorry for the late reply, > > > @Walter I did try to restore the messages from oldreplica files once, but > didn't manage to get the messages back. I think the replica containing the > messages was deleted already since too much time has passed since I noticed > I am missing the messages. > > This is all happening on my develop server, so I'm not too concerned about > having lost some messages - but I am concerned about implementing artemis > in production environment. > > > > @Clebert I think split-brain scenario sounds possible. Is split brain a > valid scenario in a simple live-backup replicating pair? > > We are working on writing some tests, however I cannot automate shutting > down 2 virtual servers in a java-written test ... and I was never able to > replicate this. Vast majority of the time, replication works exactly as > expected. > > Also, can @Walter confirm that you had no problems on version 2.20, since > you said you are reverting back to that version? If so, maybe we should > check the changes between 2.20 and 2.22. > > > > ________________________________ > From: Clebert Suconic <clebert.suco...@gmail.com> > Sent: 25 October 2022 18:56 > To: users@activemq.apache.org > Subject: Re: Messages getting lost on Artemis 2.25 > > > To sporočilo izvira izven naše organizacije. Bodite pozorni pri vsebini in > odpiranju povezav ali prilog. > > > > > There's a bug fix I'm pushing now on the page counters: > > https://github.com/apache/activemq-artemis/pull/4271 > [ > https://opengraph.githubassets.com/f18cae5b1794552cbbd050ae368647406add7eb365ce308f4f3bceb542e6a63a/apache/activemq-artemis/pull/4271 > ]<https://github.com/apache/activemq-artemis/pull/4271> > > ARTEMIS-4073 Page Counters can go off sync when multiple producers are > used in the same address by clebertsuconic · Pull Request #4271 · > apache/activemq-artemis · GitHub< > https://github.com/apache/activemq-artemis/pull/4271> > github.com > Mirror of Apache ActiveMQ Artemis. Contribute to apache/activemq-artemis > development by creating an account on GitHub. > > > > > notice there's no page loss.. just the counter could go off sync if paging. > > > I'm also going to add an option to remove the page-counters record soon. > > > > On Thu, Oct 20, 2022 at 4:37 PM Walter de Boer <walterdeb...@dbso.nl> > wrote: > > > > Clebert, > > > > We see the AMQ222162 message after restarting on a JVM crash. In that > case we can recover the messages. Maybe this is any help to Gašper > > > > The last time we really lost messages we didn’t notice any particular > errors at server not client side. > > > > I think we’ll find some commercial support to review our setup and > client code. We’ll keep you posted. > > > > Walter > > > > -- > Clebert Suconic > > NOTICE - NOT TO BE REMOVED. > This e-mail and any attachments are confidential and may contain legally > privileged information and/or copyright material of Actual I.T. or third > parties. If you are not an authorised recipient of this e-mail, please > contact Actual I.T. immediately by return email or by telephone or > facsimile on the above numbers. > You should not read, print, re-transmit, store or act in reliance on this > email or any attachments and you should destroy all copies of them. > -- Clebert Suconic
