[jira] [Updated] (HUDI-2751) To avoid the duplicates for streaming read MOR table

["Rajesh Mahindra (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HUDI-2751?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rajesh Mahindra updated HUDI-2751:
----------------------------------
    Sprint: Hudi-Sprint-Jan-18, Hudi-Sprint-Jan-24, Hudi-Sprint-Jan-31  (was: Hudi-Sprint-Jan-18, Hudi-Sprint-Jan-24)

> To avoid the duplicates for streaming read MOR table
> ----------------------------------------------------
>
>                 Key: HUDI-2751
>                 URL: https://issues.apache.org/jira/browse/HUDI-2751
>             Project: Apache Hudi
>          Issue Type: Task
>          Components: Common Core
>            Reporter: Danny Chen
>            Assignee: Alexey Kudinkin
>            Priority: Blocker
>             Fix For: 0.11.0
>
>
> Imagine there are commits on the timeline:
> inflight compaction complete compaction
> | |
> {code:java}
> -----instant 99 - instant 100 ----- 101 — 102 ------ instant 100 ----------
> first read ->| second read ->|
> – range 1 ----| ----------------------range 2 -------------------|
>   {code}
> instant 99, 101, 102 are successful non-compaction delta commits;
> instant 100 is compaction instant,
> the first inc read consumes to instant 99 and the second read consumes from instant 100 to instant 102, the second read would consumes the commit files of instant 100 which has already been consumed before.
> The duplicate reading happens when this condition triggers: a compaction instant schedules then completes in *one* consume range.



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