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https://issues.apache.org/jira/browse/HDFS-17678?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17902220#comment-17902220
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ASF GitHub Bot commented on HDFS-17678:
---------------------------------------

hanleiit opened a new pull request, #7199:
URL: https://github.com/apache/hadoop/pull/7199

   
   
   ### Description of PR
   https://issues.apache.org/jira/projects/HDFS/issues/HDFS-17678
   
   ### How was this patch tested?
   no need
   
   ### For code changes:
   
   - [ ] Does the title or this PR starts with the corresponding JIRA issue id 
(e.g. 'HADOOP-17799. Your PR title ...')?
   - [ ] Object storage: have the integration tests been executed and the 
endpoint declared according to the connector-specific documentation?
   - [ ] If adding new dependencies to the code, are these dependencies 
licensed in a way that is compatible for inclusion under [ASF 
2.0](http://www.apache.org/legal/resolved.html#category-a)?
   - [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`, 
`NOTICE-binary` files?
   
   




> The SPACE balancing strategy of Hadoop RBF component may fail
> -------------------------------------------------------------
>
>                 Key: HDFS-17678
>                 URL: https://issues.apache.org/jira/browse/HDFS-17678
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 3.3.5, 3.3.6
>            Reporter: chenyu
>            Priority: Major
>             Fix For: 3.4.0
>
>         Attachments: image-2024-12-02-17-24-30-394.png
>
>
> The SPACE strategy is implemented based on AvailableSpaceSolver.java, 
> prioritizing NS dependency on the chooseFirstnamespace function. In the 
> implementation of this function, the SPACE strategy can load all NS managed 
> by RBF using NS, without considering the mounted subset group, resulting in 
> the occurrence of the above defect.



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