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Posted to issues@activemq.apache.org by "Gary Tully (Jira)" <ji...@apache.org> on 2022/01/20 11:24:00 UTC
[jira] [Comment Edited] (ARTEMIS-3640) external clients cannot use cluster topology for HA or load balancing
[ https://issues.apache.org/jira/browse/ARTEMIS-3640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17479287#comment-17479287 ]
Gary Tully edited comment on ARTEMIS-3640 at 1/20/22, 11:23 AM:
----------------------------------------------------------------
how about:
{code:java}
<connectors>
<connector name="artemis-master">tcp://internal-cluster-dns-1:61616</connector>
<connector name="artemis-master:PUBLISHED_AS">tcp://external-cluster-dns-1:61616</connector>
<connector name="artemis-slave">tcp://internal-cluster-dns-2:61616</connector>
<connector name="artemis-slave:PUBLISHED_AS">tcp://external-cluster-dns-2:61616</connector>
</connectors> {code}
was (Author: gtully):
how about:
{code:java}
<connectors>
<connector name="artemis-master">tcp://internal-cluster-dns-1:61616</connector>
<connector name="artemis-slave">tcp://internal-cluster-dns-2:61616</connector>
<connector name="artemis-slave:PUBLISHED_AS">tcp://external-cluster-dns-2:61616</connector>
</connectors> {code}
> external clients cannot use cluster topology for HA or load balancing
> ---------------------------------------------------------------------
>
> Key: ARTEMIS-3640
> URL: https://issues.apache.org/jira/browse/ARTEMIS-3640
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Reporter: Vilius Šumskas
> Priority: Major
>
> Let's say there is a simple Artemis HA master/slave shared storage cluster with such configuration:
>
> {noformat}
> <connectors>
> <connector name="artemis-master">tcp://internal-cluster-dns-1:61616</connector>
> <connector name="artemis-slave">tcp://internal-cluster-dns-2:61616</connector>
> </connectors>
> {noformat}
> The cluster is using static discovery.
>
> Factory on internal clients are using:
> {noformat}
> (tcp://internal-cluster-dns-1:61616,tcp://internal-cluster-dns-2:61616)?ha=true&reconnectAttempts=30&useTopologyForLoadBalancing=false{noformat}
> Those internal clients can successfully connect to the cluster and failover works as expected.
>
> However if there is also external clients which use external DNS/IP address of the cluster the topology doesn't return correct DNS name and the failover fails.
> {noformat}
> (tcp://external-cluster-dns-1:61616,tcp://external-cluster-dns-2:61616)?ha=true&reconnectAttempts=30&useTopologyForLoadBalancing=false{noformat}
> {noformat}
> org.apache.activemq.artemis.core.remoting.impl.netty.NettyConnector: AMQ214033: Cannot resolve host java.net.UnknownHostException: internal-cluster-dns-1{noformat}
>
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