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https://issues.apache.org/jira/browse/HDFS-16734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17581796#comment-17581796
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ASF GitHub Bot commented on HDFS-16734:
---------------------------------------

hadoop-yetus commented on PR #4763:
URL: https://github.com/apache/hadoop/pull/4763#issuecomment-1220569204

   :broken_heart: **-1 overall**
   
   
   
   
   
   
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   |||| _ Other Tests _ |
   | -1 :x: |  unit  |  37m 20s | 
[/patch-unit-hadoop-hdfs-project_hadoop-hdfs-rbf.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4763/1/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs-rbf.txt)
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   |  |   | 138m 14s |  |  |
   
   
   | Reason | Tests |
   |-------:|:------|
   | Failed junit tests | 
hadoop.hdfs.server.federation.router.TestDisableNameservices |
   
   
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   | modules | C: hadoop-hdfs-project/hadoop-hdfs-rbf U: 
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   | Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
   
   
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> RBF: fix some bugs when handling getContentSummary RPC
> ------------------------------------------------------
>
>                 Key: HDFS-16734
>                 URL: https://issues.apache.org/jira/browse/HDFS-16734
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: ZanderXu
>            Assignee: ZanderXu
>            Priority: Major
>              Labels: pull-request-available
>
> Suppose there are some mount points as bellows in RBF without default 
> namespace.
> ||Source Path||NameSpace||Destination Path ||
> |/a/b|ns0|/a/b|
> |/a/b/c|ns0|/a/b/c|
> |/a/b/c/d|ns1|/a/b/c/d|
> Suppose there a file /a/b/c/file1 with 10MB data in ns0 and a file 
> /a/b/c/d/file2 with 20MB data in ns1.
> There are bugs during handling some cases:
> ||Case Number||Case||Current Result||Expected Result||
> |1|getContentSummary('/a')|Throw RouterResolveException |2files and 30MB data|
> |2|getContentSummary('/a/b')|2files and 40MB data|3files and 40MB data|
> Bugs for these cases:
> Case1: If can't find any locations for the path,  RBF should try to do it 
> with sub mount points.
> Case2: RBF shouldn't repeatedly get content summary from one same namespace 
> with same ancestors path, such as from ns0 with /a/b and from ns0 with /a/b/c.



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