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https://issues.apache.org/jira/browse/SPARK-46339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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L. C. Hsieh reassigned SPARK-46339:
-----------------------------------

    Assignee: L. C. Hsieh

> Directory with number name should not be treated as metadata log
> ----------------------------------------------------------------
>
>                 Key: SPARK-46339
>                 URL: https://issues.apache.org/jira/browse/SPARK-46339
>             Project: Spark
>          Issue Type: Bug
>          Components: Structured Streaming
>    Affects Versions: 3.3.3, 3.4.2, 3.5.0
>            Reporter: L. C. Hsieh
>            Assignee: L. C. Hsieh
>            Priority: Major
>              Labels: pull-request-available
>
> HDFSMetadataLog takes a metadata path as parameter. When it goes to retrieves 
> all batches metadata, it calls `CheckpointFileManager.list` to get all files 
> under the metadata path. However, currently all implementations of 
> `CheckpointFileManager.list` returns all files/directories under the given 
> path. So if there is a dictionary with name of batch number (a long value), 
> the directory will be returned too and cause trouble when HDFSMetadataLog 
> goes to read it.
> Actually, `CheckpointFileManager.list` method clearly defines that it lists 
> the "files" in a path. That's being said, current implementations don't 
> follow the doc. We should fix it.



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