Csaba Ringhofer has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/10116 )

Change subject: IMPALA-6131: Track time of last statistics update in metadata
......................................................................


Patch Set 7:

(6 comments)

http://gerrit.cloudera.org:8080/#/c/10116/4/fe/src/main/java/org/apache/impala/catalog/KuduTable.java
File fe/src/main/java/org/apache/impala/catalog/KuduTable.java:

http://gerrit.cloudera.org:8080/#/c/10116/4/fe/src/main/java/org/apache/impala/catalog/KuduTable.java@247
PS4, Line 247:         msClient.alter_table(msTable_.getDbName(), 
msTable_.getTableName(), msTable_);
> nit: single line?
Done


http://gerrit.cloudera.org:8080/#/c/10116/4/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/10116/4/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@782
PS4, Line 782:       updateTableStats(params, msTbl);
             :       // Set impala.lastComputeStatsTime just before alter_table 
to ensure that it is as
             :       // accurate as possible.
> This could be one check now
Done


http://gerrit.cloudera.org:8080/#/c/10116/4/tests/metadata/test_last_ddl_time_update.py
File tests/metadata/test_last_ddl_time_update.py:

http://gerrit.cloudera.org:8080/#/c/10116/4/tests/metadata/test_last_ddl_time_update.py@24
PS4, Line 24: # Checks different statements' effect on last DDL time and last 
compute stats time.
> nit: Checks that...
Done


http://gerrit.cloudera.org:8080/#/c/10116/4/tests/metadata/test_last_ddl_time_update.py@50
PS4, Line 50:       self.db_name = db_name
> nit: "to fill the.."?
Done


http://gerrit.cloudera.org:8080/#/c/10116/4/tests/metadata/test_last_ddl_time_update.py@167
PS4, Line 167:
> Can you think of ways to make these calls more readable? We could have to c
I have chosen creating a helper class - think that it is much more readable 
without repeating arguments/substitutions, but it is not a typical solution in 
Impala test code. Feel free to comment if you prefer to do it another way.


http://gerrit.cloudera.org:8080/#/c/10116/6/tests/metadata/test_last_ddl_time_update.py
File tests/metadata/test_last_ddl_time_update.py:

http://gerrit.cloudera.org:8080/#/c/10116/6/tests/metadata/test_last_ddl_time_update.py@162
PS6, Line 162:     h.expect_ddl_time_change("alter table %(TBL)s set 
tblproperties ('numRows'='1')")
This is the only change in patch 5+6 that should affect logic.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I59a671ac29d352bd92ce40d5cb6662bb23f146b5
Gerrit-Change-Number: 10116
Gerrit-PatchSet: 7
Gerrit-Owner: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Lars Volker <[email protected]>
Gerrit-Reviewer: Zoltan Borok-Nagy <[email protected]>
Gerrit-Comment-Date: Wed, 02 May 2018 12:40:17 +0000
Gerrit-HasComments: Yes

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