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https://issues.apache.org/jira/browse/BEAM-14393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chamikara Madhusanka Jayalath updated BEAM-14393:
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Status: Open (was: Triage Needed)
> Obtain metadata field at once in file system's IO connectors
> ------------------------------------------------------------
>
> Key: BEAM-14393
> URL: https://issues.apache.org/jira/browse/BEAM-14393
> Project: Beam
> Issue Type: Improvement
> Components: io-py-common
> Reporter: Yi Hu
> Priority: P2
> Fix For: 3.0.0
>
>
> This tasks involves refactoring and improvements of IO connectors' file
> metadata related methods (GcsIO, S3IO, BlobIO, hadoop).
> Currently, we have individual methods like size, last_updated, checksum, and
> others. Each one would make a HTTP request in order to get the specific
> metadata field. If one needs to gather multiple metadata fields, then every
> specific method are called and making multiple requests under the hood.
> Actually, the HTTP response contains multiple file metadata fields but each
> time only one field is collected and others are discarded.
> We should have a public method that returns a named tuple which contains
> multiple file metadata fields. In its implementation it only makes one
> request, as existing methods for single metadata field.
>
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