Tim Armstrong has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/16375 )

Change subject: IMPALA-10076: Reduce partition level update logs
......................................................................


Patch Set 2:

(4 comments)

Thank you for working on the observability. I had a few minor comments but 
otherwise LGTM.

Vihang, do you plan to review or should I try to bring it to +2 myself?

http://gerrit.cloudera.org:8080/#/c/16375/2/be/src/catalog/catalog-server.cc
File be/src/catalog/catalog-server.cc:

http://gerrit.cloudera.org:8080/#/c/16375/2/be/src/catalog/catalog-server.cc@729
PS2, Line 729:       return -1;
There's an overflow here, since the return value is an unsigned int - it'll 
wrap around to the maximum value. This would probably cause a UBSAN error. I'd 
suggest making the return value an int32 or just an int.


http://gerrit.cloudera.org:8080/#/c/16375/2/be/src/catalog/catalog-server.cc@737
PS2, Line 737:   // Skip logging partition items since FE will log their 
summary.
Maybe leave the JIRA here for context?


http://gerrit.cloudera.org:8080/#/c/16375/2/be/src/service/fe-support.cc
File be/src/service/fe-support.cc:

http://gerrit.cloudera.org:8080/#/c/16375/2/be/src/service/fe-support.cc@483
PS2, Line 483: uint32_t
int or int32_t to avoid the overflow


http://gerrit.cloudera.org:8080/#/c/16375/2/fe/src/main/java/org/apache/impala/catalog/PartitionMetaSummary.java
File fe/src/main/java/org/apache/impala/catalog/PartitionMetaSummary.java:

http://gerrit.cloudera.org:8080/#/c/16375/2/fe/src/main/java/org/apache/impala/catalog/PartitionMetaSummary.java@125
PS2, Line 125:     } else if (partName.compareTo(partNames[0]) < 0) {
This all feels a little complex, but I think it makes sense and I don't think 
it's worth overengineering since it's so encapsulated.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ic48946b2f8b0be1e73988092d03a004836f1b368
Gerrit-Change-Number: 16375
Gerrit-PatchSet: 2
Gerrit-Owner: Quanlong Huang <huangquanl...@gmail.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Quanlong Huang <huangquanl...@gmail.com>
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>
Gerrit-Reviewer: Vihang Karajgaonkar <vih...@cloudera.com>
Gerrit-Comment-Date: Wed, 02 Sep 2020 00:57:33 +0000
Gerrit-HasComments: Yes

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