Details
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Sub-task
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Status: Closed
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Major
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Resolution: Invalid
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None
Description
The current threading model is very simple and does not scale. We currently use 1-2 dedicated threads per partition and they all run simultaneously, which is a huge problem if you have more partitions than logical or physical cores.
This task is to re-implement the threading model so that query execution uses a fixed (configurable) number of threads. Work will be broken down into stages and tasks and each in-process executor (running on a dedicated thread) will process its queue of tasks.
This process will be driven by a scheduler.
Attachments
Attachments
Issue Links
- relates to
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ARROW-10303 [Rust] Parallel type transformation in CSV reader
- Closed
- links to