[flink] Fix batch log scan with empty buckets - #4007
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Use scanner progress to finish bounded log splits when filtering materializes no records. Add a batch regression test for statistics-filtered log tables. Fixes apache#3872
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Hi @loserwang1024 and @wuchong, when you have time, could you please help review this PR? |
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Purpose
Linked issue: close #3972
When a Flink batch job scans a multi-bucket Fluss Log Table with low parallelism, an empty bucket can remain active after its bounded split has finished. Subsequent fetch results may then contain a split ID that Flink has already unregistered.
This change ensures that bounded log splits are completed based on scanner progress and that finished buckets are retired before the next fetch.
Brief change log
consumedUpToOffsetreaches the stopping offset.EARLIEST_OFFSET.Tests
FlinkSourceSplitReaderTestFlink120TableSourceBatchITCase./mvnw -pl fluss-flink/fluss-flink-common -DskipTests verifyAPI and Format
No API or storage format changes.
Documentation
No documentation changes.
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