[jira] [Assigned] (IMPALA-12152) Add query option to wait for events sync up

["Sai Hemanth Gantasala (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-12152?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sai Hemanth Gantasala reassigned IMPALA-12152:
----------------------------------------------

    Assignee: Quanlong Huang  (was: Sai Hemanth Gantasala)

> Add query option to wait for events sync up
> -------------------------------------------
>
>                 Key: IMPALA-12152
>                 URL: https://issues.apache.org/jira/browse/IMPALA-12152
>             Project: IMPALA
>          Issue Type: New Feature
>          Components: Catalog
>            Reporter: Quanlong Huang
>            Assignee: Quanlong Huang
>            Priority: Critical
>
> Event-processor is designed to get rid of manual RT/IM (RefreshTable / InvalidateMetadata) commands that sync up with external HMS modifications. However, event processing could be delayed. Queries might still see stale metadata if the event-processor is lagging behind. We should provide a mechanism to let query planning wait until the metadata is synced up. Users can turn it on for sensitive queries that depend on external modifications.



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