iloveeyjafjalla opened a new issue, #6872:
URL: https://github.com/apache/rocketmq-dashboard/issues/6872
## Summary
The Producer page's connection summary reports a healthy cluster as at risk:
`DUPLICATE_CLIENT_ID`, readiness `WARNING` (存在风险) and a 「重复出现的客户端 ID」 tag, for
connections that are entirely normal.
## Why
- `ProducerConnectionSummaryVO.duplicateClientIds` counts **rows** per
client id and flags anything above one
(`server/src/main/java/org/apache/rocketmq/studio/cluster/client/ProducerConnectionSummaryVO.java:100-111`);
any entry sets the warning and the WARNING readiness (`:121-122`, `:139-142`).
- The producer scan keeps one row per producer **group** — the dedupe key is
`clusterId group clientId remoteIP` (`RocketMQClientProvider.java:301-307`)
— and, unlike the consumer path (which skips system groups at `:353`), the
producer group collection applies no such filter (`collectProducerGroups`,
`:310-324`).
- A Java producer is therefore present twice at the same address: its own
group plus the shared inner producer group its client registers.
- The console's client diagnostics define the colliding case differently:
`CLIENT_ID_COLLISION` is raised only when one id appears at **more than one
address** (`web/src/utils/clientConnectionDiagnostics.ts:246-263`). The two
surfaces disagree about the same cluster, and the existing test pins the
different-address case only
(`ProducerConnectionSummaryVOTest.fromShouldReportMixedVersionsAndDuplicateClients`).
## Impact
An ordinary Java-producer cluster shows a duplicate-client warning and a
WARNING readiness that cannot be told apart from the real case the warning
exists for (two JVMs sharing one `instanceName`). Operators are sent looking
for a configuration conflict that is not there.
## Reproduction
`server/src/test/java/org/apache/rocketmq/studio/cluster/client/ProducerConnectionSummaryVOTest.java`
→ `fromShouldNotFlagOneClientAsDuplicateAcrossItsGroups` feeds two rows with
the same client id at the same address:
```
expect(summary.getDuplicateClientIds()).isEmpty()
Expecting empty but was: ["producer-a"]
```
## Expected
An id seen at more than one address is still a duplicate; an id seen once
per group at a single address is not.
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