[GitHub] [iceberg] kbendick commented on pull request #2577: Spark: Add read.locality.enabled to TableProperties to support disabl…

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kbendick commented on pull request #2577:
URL: https://github.com/apache/iceberg/pull/2577#issuecomment-840856172


   I think that this can be configured via `spark.locality.wait`. I think if you set it to zero, it will just automatically give up looking for a data local node. At least that's what I've done when reading from S3 with yarn (which is by definition not local).
   
   ```
   Number of milliseconds to wait to launch a data-local task before giving up and launching it on a less-local node. The same wait will be used to step through multiple locality levels (process-local, node-local, rack-local and then any). It is also possible to customize the waiting time for each level by setting spark.locality.wait.node, etc. You should increase this setting if your tasks are long and see poor locality, but the default usually works well.
   ```


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