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https://issues.apache.org/jira/browse/IMPALA-12399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17767212#comment-17767212
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ASF subversion and git services commented on IMPALA-12399:
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Commit 056a9cc26f40cd491b52f5fa80d73646680ac13e in impala's branch
refs/heads/branch-4.3.0 from Michael Smith
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=056a9cc26 ]
Revert "IMPALA-12399: Add filter to skip OPEN_TXN events from HMS"
This reverts commit 73430a2cdcb4be876cd73303a664414c3f94f9fd as issues
were found that will take time to address (see IMPALA-12399 for
details).
> 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
> 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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