tju-yxq opened a new pull request, #1413:
URL: https://github.com/apache/rocketmq-dashboard/pull/1413

   ## What is the purpose of the change
   
   Fixes #1411
   
   The message trace query used a hardcoded 1-hour lookback window (`now - 
ONE_HOUR_MILLIS`). Traces for messages produced more than 1 hour ago were 
silently lost, returning an empty trace graph even though the trace data still 
exists on the broker (default retention is 72 hours).
   
   ## Brief changelog
   
   - **`RocketMQMessageProvider.java`**: Added `resolveMessageStoreTimestamp()` 
helper that fetches the message's `storeTimestamp` via 
`adminExt.viewMessage(msgId)`.
   - **`RocketMQMessageProvider.java`**: Modified `getMessageTrace()` to derive 
the trace query window from the message's store timestamp instead of the 
current time. `begin` is set to `storeTimestamp - 5min` and `end` to 
`max(storeTimestamp + 24h, now + 1min)`.
   - **Fallback**: If the message cannot be located (expired, wrong ID), the 
existing 1-hour window is used with a warning log.
   
   ## Verifying this change
   
   1. Produce a message and wait 2 hours.
   2. Query the message by ID or topic + time range (message is found).
   3. Click "View Trace".
   4. Before fix: empty trace graph (trace data exists but query window doesn't 
cover it).
   5. After fix: trace graph shows all trace nodes.
   
   - [x] Make sure there is a Github issue filed for the change.
   - [x] Format the pull request title like `[ISSUE #1411] ...`.
   - [x] Write a pull request description that is detailed enough to understand 
what the pull request does, how, and why.
   - [x] Write necessary unit-test to verify your logic correction.
   - [x] Run `mvn -B clean apache-rat:check findbugs:findbugs 
checkstyle:checkstyle` to make sure basic checks pass.
   - [ ] If this contribution is large, please file an Apache Individual 
Contributor License Agreement.


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