JDBC HA failover, is this supported?

[mk666aim]

With Artemis 2.9.0, I am trying to use a shared JDBC store between 2 nodes.

I have configured high availability with the failover, but it all seems to
not quite work. I am getting various error messages during the failover,
even though failover does mostly happen.

I am attaching the configuration of both brokers.

broker_node1.xml
  
broker_node2.xml
  

When both brokers startup, I can correctly see one registering as a Live
server, and the other one as a Backup.

When I kill the broker on node1 (i.e. the live one), after a while, the
backup server will go live, but throws error like this:


When I then start broker again on the node 1, it will stop at this point:


Then after a while it throws this error:


On the node 2 meanwhile, broker announces following:



Please note that we found out that time is about 90secs off between the 2
nodes, will get it synced up soon, although I don't feel this is related to
the above errors...

Any help greatly appreciated.




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Receive MQTT Retained Message With Other Protocol

[noone100]

Is it possible to receive a mqtt retained message from a topic using other
protocols such as AMQP if the receiving client is not connected to the
broker at the moment when the retained message is sent?



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