manuzhang commented on PR #5392:
URL: https://github.com/apache/iceberg/pull/5392#issuecomment-1200325517
@rdblue I've moved into cloning session and disabling AQE into
`RewriteDataFilesSparkAction`.
When multiple rewrite actions are submitted concurrently as follows, they
will block each other when loading table due to locks in `HiveExternalCatalog`.
That hurts the overall performance of rewrite actions.
```
CALL spark_catalog.system.rewrite_data_files(table => 'default.table',
options => map('max-concurrent-file-group-rewrites', '200'));
```
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