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Posted to hdfs-issues@hadoop.apache.org by "Shilun Fan (Jira)" <ji...@apache.org> on 2024/01/28 01:51:00 UTC

[jira] [Updated] (HDFS-17134) RBF: Fix duplicate results of getListing through Router.

     [ https://issues.apache.org/jira/browse/HDFS-17134?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shilun Fan updated HDFS-17134:
------------------------------
     Target Version/s: 3.4.0
    Affects Version/s: 3.4.0

> RBF: Fix duplicate results of getListing through Router.
> --------------------------------------------------------
>
>                 Key: HDFS-17134
>                 URL: https://issues.apache.org/jira/browse/HDFS-17134
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: rbf
>    Affects Versions: 3.4.0
>            Reporter: Shuyan Zhang
>            Assignee: Shuyan Zhang
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.4.0
>
>
> The result of `getListing` in NameNode are sorted based on `byte[]`, while the Router side is based on `String`. If there are special characters in path, the sorting result of the router will be inconsistent with the namenode. This may result in duplicate `getListing` results obtained by the client due to wrong `startAfter` parameter.
> For exemple, namenode returns [path1, path2, path3] for a `getListing` request, while router returns [path1, path3, path2] to client. Then client will pass `path2` as `startAfter`  at the next iteration, so it will receive `path3` again.
> We need to fix the Router code so that the order of its result is the same as NameNode.



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