SuperMetaStream opened a new issue, #2428:
URL: https://github.com/apache/uniffle/issues/2428

   ### Code of Conduct
   
   - [x] I agree to follow this project's [Code of 
Conduct](https://www.apache.org/foundation/policies/conduct)
   
   
   ### Search before asking
   
   - [x] I have searched in the 
[issues](https://github.com/apache/incubator-uniffle/issues?q=is%3Aissue) and 
found no similar issues.
   
   
   ### Describe the flaky test
   
   ### What happened
   
   The unit test `LocalStorageManagerTest.testGetLocalStorageInfo` failed 
during execution due to an unexpected assertion:
   ```bash
   [ERROR] Failures:
   [ERROR]   LocalStorageManagerTest.testGetLocalStorageInfo:334 expected: 
\<SSD\> but was: \<HDD\>
   ```
   
   The test attempts to detect the storage type (SSD or HDD) using the Linux 
command:
   
   ```bash
   lsblk -no ROTA /dev/<device-name>
   ```
   
   However, the result differs from the expected StorageMedia type, possibly 
due to:
   
   - ROTA value not correctly returned or parsed
   
   - Ambiguity in df/lsblk output
   
   - Device name resolution mismatch
   
   - Virtualized or CI environments not reliably reporting SSD status
   
   ### How to reproduce
   Run the test on a Linux machine (especially with NVMe or SSD mount) where 
the underlying disk is SSD:
   ```bash
   mvn test -Dtest=LocalStorageManagerTest
   ```
   ### In my case:
   
   - Mount path: /home/ssd1
   
   - Device: /dev/nvme0n1
   
   - Expected: SSD
   
   - Detected: HDD
   
   ### Environment
   - OS: Linux
   
   - Disk: NVMe SSD
   
   - Java: 1.8
   
   - Maven: 3.6+
   
   - Uniffle version: 0.11.0-SNAPSHOT
   
   - Test path: org.apache.uniffle.server.storage.LocalStorageManagerTest
   
   ### Actions URL
   
   Just to clarify: the failure does **not** happen in GitHub Actions. It 
occurred **locally on my development machine** during `mvn test`, specifically 
in `LocalStorageManagerTest.testGetLocalStorageInfo`.
   
   This test expects the disk to be detected as `SSD`, but it was detected as 
`HDD` on my environment (`/dev/nvme0n1` mounted at `/home/ssd1`), leading to an 
assertion failure.
   
   So there's no GitHub Actions link I can provide — it passed in CI, but fails 
locally due to disk detection logic.
   
   ### Are you willing to submit PR?
   
   - [x] Yes I am willing to submit a PR!


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