Quanlong Huang has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/17308 )

Change subject: IMPALA-10502: Handle CREATE/DROP events correctly
......................................................................


Patch Set 12: Code-Review+1

(6 comments)

Carrying my +1. Looked at the changes between PS7 and PS12, I'm good with the 
test coverage. Thanks for this work!

http://gerrit.cloudera.org:8080/#/c/17308/12/fe/src/main/java/org/apache/impala/catalog/events/NoOpEventProcessor.java
File fe/src/main/java/org/apache/impala/catalog/events/NoOpEventProcessor.java:

http://gerrit.cloudera.org:8080/#/c/17308/12/fe/src/main/java/org/apache/impala/catalog/events/NoOpEventProcessor.java@20
PS12, Line 20: import org.apache.hadoop.hive.metastore.api.NotificationEvent;
             : import org.apache.impala.catalog.CatalogException;
             : import 
org.apache.impala.catalog.events.MetastoreEvents.IgnoredEvent;
             : import 
org.apache.impala.catalog.events.MetastoreEvents.MetastoreEvent;
nit: seems unused imports


http://gerrit.cloudera.org:8080/#/c/17308/12/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java
File fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java:

http://gerrit.cloudera.org:8080/#/c/17308/12/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@693
PS12, Line 693: debug
Do we change the log level somewhere? I see these debug loggings when running 
test_event_processor.py.


http://gerrit.cloudera.org:8080/#/c/17308/12/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@804
PS12, Line 804:
nit: don't need space


http://gerrit.cloudera.org:8080/#/c/17308/12/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@805
PS12, Line 805:
nit: don't need space


http://gerrit.cloudera.org:8080/#/c/17308/12/tests/custom_cluster/test_event_processing.py
File tests/custom_cluster/test_event_processing.py:

http://gerrit.cloudera.org:8080/#/c/17308/12/tests/custom_cluster/test_event_processing.py@666
PS12, Line 666:           "insert into table {0}.{1} partition (year,month) "
nit: Could you also add an OVERWRITE insert case? E.g. split this into

 insert into table {0}.{1} partition(year, month) select * from 
functional.alltypessmall where month % 2 = 0
 insert overwrite table {0}.{1} partition(year, month) select * from 
functional.alltypessmall where month % 2 = 1

Just thinking about covering more cases.


http://gerrit.cloudera.org:8080/#/c/17308/12/tests/custom_cluster/test_event_processing.py@709
PS12, Line 709:           # the table is empty so the following inserts add 0 
rows
nit: seems a wrong comment since "functional.alltypestiny" is not empty..



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ia2c5e96b48abac015240f20295b3ec3b1d71f24a
Gerrit-Change-Number: 17308
Gerrit-PatchSet: 12
Gerrit-Owner: Vihang Karajgaonkar <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Sourabh Goyal <[email protected]>
Gerrit-Reviewer: Vihang Karajgaonkar <[email protected]>
Gerrit-Reviewer: Zoltan Borok-Nagy <[email protected]>
Gerrit-Comment-Date: Fri, 25 Jun 2021 12:44:07 +0000
Gerrit-HasComments: Yes

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