Iterative Write Operation

Question

All,

Would a rename directory (Iterative Write Operation) on a directory containing 200 files be considered one single operation or would it be considered 200 operations because there are 200 files?

Thanks,
grajee

Answer 1

Hello @grajee ,

Thanks for the question and using MS Q&A platform.

You would want to know if renaming an ADLS Gen2 directory containing x files will be considered a single operation or multiple ( x ) operations.

Renames/moves as part of analytics job commit activities will end up with a lot of operations (proportional to object count) with Flat Namespace account while this would be a single transaction in Hierarchical Namespace account.

If you would want to rename of a folder containing 200 files. The rename would be charged as a single metadata operation (iterative writes).

For better understanding of ADLS Gen2 billing, please refer to please articles:
1) Azure Data Lake Storage Gen2 Billing FAQs
2) Azure Data Lake Storage pricing

Here is another thread where a few additional details are shared related to iterative write operations and billing : Interative Write Operation vs Write Operation

Hope this will help. Please let us know if any further queries.

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