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I have used User-Defined Metadata data to store the file in S3 bucket. Lets say my meta data would be like
metaData = {
"title": "some random user title",
"description": "some random user description"
}
I understand that i can download file using the object key and the bucket name. I am looking whether there any way/options to get/retrieve/list the file by passing only the bucket name and User-Defined Metadata used for the object to upload in S3.
And also to know the actual usage of User-Defined Metadata
Any guidance or suggestions would greatly helpful.!
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This solution maintains an index in an Apache Parquet file, which optimizes Athena queries to search Amazon S3 metadata. Using this approach makes it straightforward to run queries as needed without the need to ingest data or manage any servers.
The HeadObject action retrieves metadata from an object without returning the object itself. This operation is useful if you're only interested in an object's metadata. To use HEAD, you must have READ access to the object.
By default, Amazon S3 doesn't collect server access logs. When you enable logging, Amazon S3 delivers access logs for a source bucket to a target bucket that you choose. The target bucket must be in the same AWS Region and AWS account as the source bucket, and must not have a default retention period configuration.
There is no native operation in Amazon S3 that can locate/retrieve objects via Metadata.
Metadata can be retrieved from objects, but cannot be used to search for objects. Also, only limited Metadata can be retrieved as part of an object listing.
An alternative would be to use Amazon S3 Inventory - Amazon Simple Storage Service. This only provides the listing once per day, but it can include metadata. You could use these files to locate objects based on metadata.
See:
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