Parquet files in S3?
Parquet files in S3: When DMS writes out the file and places it in S3 and it shows in the listing, is the file complete and nothing else is going to be added to it? or can it be partially filled?
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When DMS writes a Parquet file, it typically completes the file writing process and places it in S3 as a complete file.
Once the Parquet file is written and listed in S3, it is considered a finalized and immutable object. Subsequent updates or additions to the file are not possible without overwriting the entire file. If new data needs to be added, a new Parquet file would typically be created.
It's worth noting that the behavior of DMS and how it writes files to S3 can vary depending on the specific configuration and settings used. However, in most cases, Parquet files written by DMS are complete and finalized upon being placed in S3.
The S3 will have processed files. If the data are processed properly by DMS then it will be in S3. There is no partially filled file in S3.
