Aias00 opened a new issue, #7697: URL: https://github.com/apache/shenyu/issues/7697
## Current behavior The instance list loads database rows, looks up each row in the local `InstanceCheckService` map, then dereferences the result without checking for null. In cluster mode, `InstanceCheckService.setup()` runs after master election; a follower need not have populated this map. The default cluster forwarding list does not include `/instance/**`. A follower querying shared database records can therefore hit a null heartbeat entry and fail the whole page. A full two-node reproduction is still required; the null dereference and missing-map case are visible in source. Other evidence: `ShenyuClusterService.doSelectMaster:75-89`, `ClusterForwardFilter:99-118`, and `application.yml` cluster forwarding defaults. The same mismatch can occur for a row inserted after this JVM loaded its initial snapshot. ## Acceptance criteria - [ ] Controller regression: a database row absent from the local map does not fail the page. - [ ] Define authoritative status behavior: use an explicit persisted/stale fallback or route status reads to the appropriate authority; do not fabricate a fresh ONLINE state. - [ ] Test two Admin nodes with shared storage, follower reads, newly persisted rows and master failover. - [ ] Preserve namespace filtering and distinguish fresh observations from stored status. - [ ] Keep this separate from #6496, which concerns persistence-scheduler failure. ## Source evidence [Reviewed source](https://github.com/apache/shenyu/blob/b4e115367fd57adc8aba332d655b1009932ba394/shenyu-admin/src/main/java/org/apache/shenyu/admin/controller/InstanceController.java#L84). Baseline: `b4e115367fd57adc8aba332d655b1009932ba394`. Report based on source inspection; no runtime reproduction was executed during issue preparation. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
