[SCB-2804] Fix instance not found when instances frequently change

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: java-chassis-2.8.13
• Component/s: Java-Chassis
• Assignee: liubao
• Reporter: liubao
• Created: 29/Aug/23 01:41
• Updated: 10/Oct/23 01:11
• Resolved: 30/Aug/23 09:19

Description

There is one problem between MicroserviceVersions instance update and DiscoveryFilter getting instance list. 

While DiscoveryFilter getting instance list, and MicroserviceVersions  is updating instance list, this will produce a concurrent access problem that DiscoveryFilter get an empty instance list. 

Issue Links

• links to: GitHub Pull Request #3926
• links to: GitHub Pull Request #3959