Re: Artemis HA with multiple standby slaves behaviour

2019-06-10 Thread ahuhatwork
Thanks for the insight Justin. Albert -- Sent from: http://activemq.2283324.n4.nabble.com/ActiveMQ-User-f2341805.html

Re: Artemis HA with multiple standby slaves behaviour

2019-06-10 Thread Justin Bertram
> Speaking of split brains, I haven't really been able to discern how to > recover from a split brain. What are the general techniques to recovering > from a split brain? Recovering from a split-brain may be impossible depending on what happens during the split and what kind of logging you have in

Re: Artemis HA with multiple standby slaves behaviour

2019-06-06 Thread ahuhatwork
Thanks for the quick response Justin. I've configured Artemis to use replication as the infrastructure for shared-storage isn't... great. So for my situation at work, the hypervisors tend to randomly die on us (and thus taking the VMs with them). We have 3 zones/hypervisors. I wanted a single ma

Re: Artemis HA with multiple standby slaves behaviour

2019-06-06 Thread Justin Bertram
This is a valid setup even though failback won't work as expected. There should be no more risk of data loss in this setup as there is in any other. Justin On Thu, Jun 6, 2019 at 2:49 AM Bummer wrote: > This isn't a valid setup. Only one slave per master can work as expected. > You're about to

Re: Artemis HA with multiple standby slaves behaviour

2019-06-06 Thread Justin Bertram
At this point using multiple backups will preclude fail-back from working as generally expected so the behavior you're seeing is expected. Out of curiosity, are you using shared-storage or replication? If you're using replication keep in mind that you'll want at least 3 master/slave pairs to achie

Re: Artemis HA with multiple standby slaves behaviour

2019-06-06 Thread Bummer
This isn't a valid setup. Only one slave per master can work as expected. You're about to lose data if you continue this way. I was there recently. Look this topic up on the forums to get more information about the reasons. This setup is surprisingly common. -- Sent from: http://activemq.2283324

Artemis HA with multiple standby slaves behaviour

2019-06-05 Thread ahuhatwork
I just want to confirm that this is the expected behaviour. I have 1 master with 3 slaves (the brokers are hosted on VMs that tend to randomly die). I'm currently testing this on the latest source code from github. Here's the scenario: 1) Start master 2) Start slave1 3) Start slave2 4) Kill maste