Apache Iceberg version

1.9.1 (latest release)

Query engine

Spark

Please describe the bug 🐞

I've recently tested the new integration with the S3 Analytics Accelerator and noticed a small improvement in the processing time for stages that read data from S3, which is great!

However, I also observed that the Input column in the Spark UI (and in the Spark History Server) is consistently empty for these stages. This makes it harder to understand the volume of data being read and to debug or optimize performance.

Spark UI with S3 Analytics Accelerator disabled (default):

Spark UI with S3 Analytics Accelerator enabled:

Willingness to contribute

• I can contribute a fix for this bug independently
• I would be willing to contribute a fix for this bug with guidance from the Iceberg community
• I cannot contribute a fix for this bug at this time