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https://issues.apache.org/jira/browse/HDDS-14161?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Attila Doroszlai reassigned HDDS-14161:
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Assignee: Jayer
> Fix Ozone FS client returns null BlockLocations for zero-byte files
> -------------------------------------------------------------------
>
> Key: HDDS-14161
> URL: https://issues.apache.org/jira/browse/HDDS-14161
> Project: Apache Ozone
> Issue Type: Improvement
> Components: Ozone Client
> Affects Versions: 2.0.0
> Reporter: Jayer
> Assignee: Jayer
> Priority: Major
> Labels: pull-request-available
>
> Currently, the Ozone File System client's implementation of
> `org.apache.hadoop.fs.LocatedFileStatus.getBlockLocations()` returns null
> when the file size is 0 byte.
> This behavior is inconsistent with the HDFS File System client, which
> correctly returns an empty `BlockLocation[]` array for zero-byte files, as
> per the standard Hadoop FileSystem API contract for files with no blocks.
> This commit addresses the compatibility issue by modifying `OzoneFileSystem`
> to return an empty `BlockLocation[]` array when:
> # The file size is 0.
> # The internal block list is empty (which is true for 0-byte files). This
> change ensures better interoperability and seamless compatibility for
> applications relying on the expected behavior of the Hadoop FileSystem API.
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