[SPARK-55493] [SS] Do not mkdirs in streaming checkpoint offset/commit log directory in StateDataSource#54381
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liviazhu wants to merge 2 commits intoapache:masterfrom
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What changes were proposed in this pull request?
Previously, we try to create a new directory for offsets and commits in the checkpoint directory if they don't exist when running
StateDataSource. This is because the utility functions are shared with streaming query functionality which needs to create these dirs if they don't exist. This change creates new readOnly modes for the utilities so that datasources do not need to mkdirs.Why are the changes needed?
Allow usage of StateDataSource on checkpoints that are read-only.
Does this PR introduce any user-facing change?
No
How was this patch tested?
New unit tests
Was this patch authored or co-authored using generative AI tooling?
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