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https://issues.apache.org/jira/browse/IMPALA-10923?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Quanlong Huang updated IMPALA-10923:
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Epic Link: IMPALA-11532
> Fine grained table refreshing at partition level events for transactional
> tables
> --------------------------------------------------------------------------------
>
> Key: IMPALA-10923
> URL: https://issues.apache.org/jira/browse/IMPALA-10923
> Project: IMPALA
> Issue Type: Improvement
> Components: Catalog
> Reporter: Yu-Wen Lai
> Assignee: Yu-Wen Lai
> Priority: Major
> Fix For: Impala 4.1.0
>
>
> For ensuring the transactional tables are consistent, we currently take whole
> table refreshing even a change is just for a partition only. That is too
> expensive and possibly make event processing has a longer delay.
> To enable fine-grained table refreshing, there are three main changes in this
> proposal.
> # maintain validWriteIdList in Catalogd for transactional tables. We will
> track write id changes by AllocWriteIdEvents, CommitTxnEvents, and
> AbortTxnEvents.
> # trigger partition level refreshing for addPartitionEvents,
> dropPartitionEvents, and AlterPartitionEvents.
> # Introduce a config *incremental_refresh_acid*, which can switch on/off the
> fine-grained table refreshing
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