[jira] [Updated] (HUDI-3194) Fix invisible writes(commits) during compaction (HoodieParquetRealtimeInputFormat)

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HUDI-3194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated HUDI-3194:
---------------------------------
    Labels: pull-request-available  (was: )

> 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
>            Reporter: Yuwei Xiao
>            Priority: Major
>              Labels: pull-request-available
>
> 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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