devinjdangelo opened a new pull request, #9605: URL: https://github.com/apache/arrow-datafusion/pull/9605
## Which issue does this PR close? related to #9493 ## Rationale for this change Serialization is CPU intensive and could starve the object store writer futures resulting in failed/timed out writes. I believe that all parts of parallel parquet writing apart from `concatenate_parallel_row_groups` (which does the object store put) could be moved to a sync/blocking thread. However, I think serialization is the only one CPU intensive enough between calls to `.await` to potentially cause issues. ## What changes are included in this PR? Moves parquet column serialization to blocking threads with spawn_blocking method. ## Are these changes tested? Yes, by existing tests ## Are there any user-facing changes? No -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
