Michael Smith has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/23942 )

Change subject: IMPALA-14230: Add catch-up mode for event processing
......................................................................


Patch Set 5:

(5 comments)

http://gerrit.cloudera.org:8080/#/c/23942/5/be/src/catalog/catalog-server.cc
File be/src/catalog/catalog-server.cc:

http://gerrit.cloudera.org:8080/#/c/23942/5/be/src/catalog/catalog-server.cc@124
PS5, Line 124:     "to speed up  the event processing. "
typo: double space in "up  the". I would also remove "the", it's not necessary 
when referring to the action of event processing.


http://gerrit.cloudera.org:8080/#/c/23942/5/fe/src/compat-hive-3/java/org/apache/impala/compat/MetastoreShim.java
File fe/src/compat-hive-3/java/org/apache/impala/compat/MetastoreShim.java:

http://gerrit.cloudera.org:8080/#/c/23942/5/fe/src/compat-hive-3/java/org/apache/impala/compat/MetastoreShim.java@975
PS5, Line 975:         infoLog("Catch-up Mode: Skipping event due to event lag 
of {}s", lag);
I think this would make sense to log before we start invalidating tables rather 
than after.


http://gerrit.cloudera.org:8080/#/c/23942/5/fe/src/compat-hive-3/java/org/apache/impala/compat/MetastoreShim.java@1042
PS5, Line 1042:       for (TableWriteId tableWriteId : tableWriteIds) {
nit: the formatting changes may make this harder to backport to older releases.


http://gerrit.cloudera.org:8080/#/c/23942/5/fe/src/main/java/org/apache/impala/catalog/events/MetastoreEvents.java
File fe/src/main/java/org/apache/impala/catalog/events/MetastoreEvents.java:

http://gerrit.cloudera.org:8080/#/c/23942/5/fe/src/main/java/org/apache/impala/catalog/events/MetastoreEvents.java@3750
PS5, Line 3750:     protected boolean handleIfInCatchUpMode() {
We should be able to avoid a lot of the duplication across these 3 
implementations with a static method.


http://gerrit.cloudera.org:8080/#/c/23942/5/tests/custom_cluster/test_events_custom_configs.py
File tests/custom_cluster/test_events_custom_configs.py:

http://gerrit.cloudera.org:8080/#/c/23942/5/tests/custom_cluster/test_events_custom_configs.py@680
PS5, Line 680:     catalogd_args="--hms_event_polling_interval_s=1 "
nit: could we set this cluster up once and use it for multiple tests?

It'd require a new test class with these args set for the class definition.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ib906c06346d5d3159999eeac632e1318bc060065
Gerrit-Change-Number: 23942
Gerrit-PatchSet: 5
Gerrit-Owner: Yida Wu <[email protected]>
Gerrit-Reviewer: Anonymous Coward <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Michael Smith <[email protected]>
Gerrit-Reviewer: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Sai Hemanth Gantasala <[email protected]>
Gerrit-Reviewer: Yida Wu <[email protected]>
Gerrit-Comment-Date: Tue, 24 Feb 2026 21:52:41 +0000
Gerrit-HasComments: Yes

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