[ARTEMIS-2867] NetworkHealthCheck should not cache IPs, and always use DNS

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Done
• Affects Version/s: 2.14.0
• Fix Version/s: 2.15.0
• Component/s: Broker
• Assignee: Unassigned
• Reporter: Clebert Suconic
• Created: 04/Aug/20 18:08
• Updated: 25/Aug/20 13:16
• Resolved: 25/Aug/20 13:16

Description

The network health check is using DNS, however it resolves the address and only stores the InetAddress and always use the resolved IP.

 

We should instead always use the DNS server, so in case the DNS server is down, the server is down.

 

Some users reported split brain after the DNS server was unreachable and while the IPs were ok.