hudi-bot opened a new issue, #15010:
URL: https://github.com/apache/hudi/issues/15010
While working on HUDI-3322, i've spotted following contraption:
When we are rolling back Delta Commits, we add corresponding
{{ROLLBACK_PREVIOUS_BLOCK}} Command Block at the back of the "queue". When we
restore, we issue a sequence of Rollbacks, which means that stack if such
Rollback Blocks could be of size > 1.
However, when reading that MOR table if the reader does not specify
`readBlocksLazily=true`, we'd be merging Blocks eagerly (when instants
increment) therefore essentially rendering such Rollback Blocks useless since
they can't "unmerge" previously merged records, resurrecting the data that was
supposed to be rolled back.
## JIRA info
- Link: https://issues.apache.org/jira/browse/HUDI-3342
- Type: Bug
- Fix version(s):
- 1.1.0
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