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https://issues.apache.org/jira/browse/HUDI-3194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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sivabalan narayanan updated HUDI-3194:
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Component/s: compaction
writer-core
> Fix invisible writes(commits) during compaction
> (HoodieParquetRealtimeInputFormat)
> ----------------------------------------------------------------------------------
>
> Key: HUDI-3194
> URL: https://issues.apache.org/jira/browse/HUDI-3194
> Project: Apache Hudi
> Issue Type: Bug
> Components: compaction, writer-core
> Reporter: Yuwei Xiao
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.11.0
>
>
> Suppose a compaction (with instant A) is going on, all writes related with
> the compaction (i.e., touch the file groups that are under compaction) will
> end up with timestamp A.
> For current `HoodieParquetRealtimeInputFormat` implementation, even the
> writes complete, the records are invisible until the compaction complete.
> The following pseudocode could reproduce the case
> ```
> write 200 records and complete
> scheduleCompaction
> write 200 records and complete
> read the table and only get 200 records
> ```
> Note, the Spark read path is correct and will cover the corner cases during
> compaction. But the hive path (also presto) is wrong.
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