[AMQ Broker] AMQ Broker pod slow to start with a WARN "No DNS SRV record found for service"

Issue

• The startup of the Broker took 39 seconds which leads to crash loop back. We did see in the pod log:

  2021-11-28 12:25:07,014 WARNING [org.jgroups.stack.Configurator] JGRP000014: Discovery.timeout has been deprecated: GMS.join_timeout should be used instead
  2021-11-28 12:25:07,305 INFO  [org.jgroups.protocols.openshift.DNS_PING] serviceName [ex-aao-ping-svc] set; clustering enabled
  2021-11-28 12:25:46,346 INFO  [org.openshift.ping.common.Utils] 3 attempt(s) with a 1000ms sleep to execute [GetServicePort] failed. Last failure was [javax.naming.CommunicationException: DNS error]
  2021-11-28 12:25:46,347 WARNING [org.jgroups.protocols.openshift.DNS_PING] No DNS SRV record found for service [ex-aao-ping-svc]
  

• AMQ Broker shows the following log when started:

  2021-11-28 12:25:46,347 WARNING [org.jgroups.protocols.openshift.DNS_PING] No DNS SRV record found for service [ex-aao-ping-svc]