Hi,
I'm trying to setup 3-node Artemis (2.5.0) HA cluster (1 master and 2
slaves) with replication, automatic failover/failback and static connectors.
It works fine with just one slave, but with 2 slaves strange thing happens
- failback doesn't work, when original master comes back online both servers
claim to be live
- sometimes one of the servers gets stuck - only "Server is stopped"
messages appear in the log
Each broker configuration is created with
/opt/apache-artemis/bin/artemis create artemis \
--home /opt/apache-artemis \
--user artemis \
--password simetraehcapa \
--role amq \
--require-login \
--cluster-user artemisCluster \
--cluster-password simetraehcaparetsulc
with some changes to setup cluster
*node artemis-1*
<name>artemis-1</name>
<connectors>
<connector name="artemis-1">tcp://artemis-1:61616</connector>
<connector name="artemis-2">tcp://artemis-2:61616</connector>
<connector name="artemis-3">tcp://artemis-3:61616</connector>
</connectors>
<cluster-connections>
<cluster-connection name="replication-cluster">
<connector-ref>artemis-1</connector-ref>
<retry-interval>1000</retry-interval>
<retry-interval-multiplier>2</retry-interval-multiplier>
<max-retry-interval>8000</max-retry-interval>
<use-duplicate-detection>true</use-duplicate-detection>
<message-load-balancing>OFF</message-load-balancing>
<max-hops>1</max-hops>
<static-connectors allow-direct-connections-only="true">
<connector-ref>artemis-2</connector-ref>
<connector-ref>artemis-3</connector-ref>
</static-connectors>
</cluster-connection>
</cluster-connections>
<ha-policy>
<replication>
<master>
<check-for-live-server>true</check-for-live-server>
</master>
</replication>
</ha-policy>
*node artemis-2*
<connectors>
<connector name="artemis-2">tcp://artemis-2:61616</connector>
<connector name="artemis-1">tcp://artemis-1:61616</connector>
<connector name="artemis-3">tcp://artemis-3:61616</connector>
</connectors>
<cluster-connections>
<cluster-connection name="replication-cluster">
<connector-ref>artemis-2</connector-ref>
<retry-interval>1000</retry-interval>
<retry-interval-multiplier>2</retry-interval-multiplier>
<max-retry-interval>8000</max-retry-interval>
<use-duplicate-detection>true</use-duplicate-detection>
<message-load-balancing>OFF</message-load-balancing>
<max-hops>1</max-hops>
<static-connectors allow-direct-connections-only="true">
<connector-ref>artemis-1</connector-ref>
<connector-ref>artemis-3</connector-ref>
</static-connectors>
</cluster-connection>
</cluster-connections>
<ha-policy>
<replication>
<slave>
<allow-failback>true</allow-failback>
</slave>
</replication>
</ha-policy>
*node artemis-3*
<name>artemis-3</name>
<connectors>
<connector name="artemis-3">tcp://artemis-3:61616</connector>
<connector name="artemis-1">tcp://artemis-1:61616</connector>
<connector name="artemis-2">tcp://artemis-2:61616</connector>
</connectors>
<cluster-connections>
<cluster-connection name="replication-cluster">
<connector-ref>artemis-3</connector-ref>
<retry-interval>1000</retry-interval>
<retry-interval-multiplier>2</retry-interval-multiplier>
<max-retry-interval>8000</max-retry-interval>
<use-duplicate-detection>true</use-duplicate-detection>
<message-load-balancing>OFF</message-load-balancing>
<max-hops>1</max-hops>
<static-connectors allow-direct-connections-only="true">
<connector-ref>artemis-1</connector-ref>
<connector-ref>artemis-2</connector-ref>
</static-connectors>
</cluster-connection>
</cluster-connections>
<ha-policy>
<replication>
<slave>
<allow-failback>true</allow-failback>
</slave>
</replication>
</ha-policy>
I am happy to provide further information if required.
--
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