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https://issues.apache.org/jira/browse/FLINK-29840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Caizhi Weng closed FLINK-29840.
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Resolution: Fixed
master: f54008c98f51e419fa4a80d6fe0e62ab97358c54
release-0.2: fe0f333f5289081ca210540576e81c469ba18dd6
> Old record may overwrite new record in Table Store when snapshot committing
> is slow
> -----------------------------------------------------------------------------------
>
> Key: FLINK-29840
> URL: https://issues.apache.org/jira/browse/FLINK-29840
> Project: Flink
> Issue Type: Bug
> Components: Table Store
> Affects Versions: table-store-0.3.0, table-store-0.2.2
> Reporter: Caizhi Weng
> Assignee: Caizhi Weng
> Priority: Major
> Labels: pull-request-available
> Fix For: table-store-0.3.0, table-store-0.2.2
>
>
> Consider the following scenario when snapshot committing is slow:
> * A writer produces some records at checkpoint T.
> * It produces no record at checkpoint T+1 and is closed.
> * It produces some records at checkpoint T+2. It will be reopened and read
> the latest sequence number from disk. However snapshot at checkpoint T may
> not be committed so the sequence number it reads might be too small.
> In this scenario, records from checkpoint T may overwrite records from
> checkpoint T+2 because they have larger sequence numbers.
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