Aias00 opened a new issue, #897:
URL: https://github.com/apache/rocketmq-dashboard/issues/897
### Problem
`RocketMQDashboardProvider` initializes each cluster overview version to
`unknown`, then only assigns the broker runtime `brokerVersionDesc` when the
current value is **not** `unknown`:
```java
String version = "unknown";
...
if (v != null && !"unknown".equals(version)) {
version = v;
}
```
Because the initial value is `unknown`, the condition is false on the first
runtime stat response, so the dashboard cluster overview keeps reporting
`unknown` even when brokers expose `brokerVersionDesc`.
### Impact
The Studio dashboard cannot show the real RocketMQ broker version in the
cluster overview, which weakens the Control Plane / dashboard baseline view.
### Expected behavior
When broker runtime stats contain `brokerVersionDesc`, the cluster overview
should use that value. If no broker reports a version, it should keep `unknown`.
### Code evidence
-
`server/src/main/java/org/apache/rocketmq/studio/rocketmq/RocketMQDashboardProvider.java`
### Suggested fix
Assign `brokerVersionDesc` when it is non-blank and the current cluster
version is still `unknown`, and add a provider test for the dashboard cluster
overview version.
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