[jira] [Resolved] (IMPALA-12399) Pass eventTypeSkipList with OPEN_TXN in NotificationEventRequest to avoid receiving OPEN_TXN events from HMS

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

     [ https://issues.apache.org/jira/browse/IMPALA-12399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sai Hemanth Gantasala resolved IMPALA-12399.
--------------------------------------------
    Fix Version/s: Impala 4.4.0
       Resolution: Fixed

> Pass eventTypeSkipList with OPEN_TXN in NotificationEventRequest to avoid receiving OPEN_TXN events from HMS
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: IMPALA-12399
>                 URL: https://issues.apache.org/jira/browse/IMPALA-12399
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Catalog
>            Reporter: Venugopal Reddy K
>            Assignee: Venugopal Reddy K
>            Priority: Major
>             Fix For: Impala 4.4.0
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> Notification events like OPEN_TXN are ignored on catalogd {{{}MetastoreEventsProcessor{}}}. So, we can pass eventTypeSkipList with OPEN_TXN in NotificationEventRequest while invoking get_next_notification() to avoid reading such notification messages from HMS and then ignoring on catalogd. OPEN_TXN event being more frequent(received even upon describe table operation from beeline), we can significantly reduce unwanted processing on both HMS and catalogd. Catalogd reads events in batches of EVENTS_BATCH_SIZE_PER_RPC, skipping such unnecessary events can help catchup the events faster.



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