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 11:

(4 comments)

http://gerrit.cloudera.org:8080/#/c/10116/10/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/10116/10/fe/src/main/java/org/apache/impala/catalog/KuduTable.java@244
PS10, Line 244:         
msTable_.putToParameters(StatsSetupConst.DO_NOT_UPDATE_STATS,
> Makes sense, please add a comment somewhere stating why we prefer to set th
Done


http://gerrit.cloudera.org:8080/#/c/10116/10/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/10116/10/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@785
PS10, Line 785:       Table.updateTimestampProperty(msTbl, 
HdfsTable.TBL_PROP_LAST_COMPUTE_STATS_TIME);
> The Kudu properties are generaly in KuduTable. Which property in HdfsTable
Done - I thought that some of the properties defined in HdfsTable are used by 
Kudu tables too, but I looked through them and they are only used in HDFS 
tables.


http://gerrit.cloudera.org:8080/#/c/10116/10/tests/metadata/test_last_ddl_time_update.py
File tests/metadata/test_last_ddl_time_update.py:

http://gerrit.cloudera.org:8080/#/c/10116/10/tests/metadata/test_last_ddl_time_update.py@74
PS10, Line 74:     def run_test(self, queries, expect_changed_ddl_time, 
expect_changed_stats_time):
> The vast majority of cases only runs one query at once, and there is no fun
Done


http://gerrit.cloudera.org:8080/#/c/10116/10/tests/metadata/test_last_ddl_time_update.py@93
PS10, Line 93:       time.sleep (1.1)
> I agree it's an HMS convention. Let's change the comment to state that then
I have already rewritten Hive to HMS in patch set 11 - does the comment still 
miss something?



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I59a671ac29d352bd92ce40d5cb6662bb23f146b5
Gerrit-Change-Number: 10116
Gerrit-PatchSet: 11
Gerrit-Owner: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Alex Behm <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Lars Volker <[email protected]>
Gerrit-Reviewer: Zoltan Borok-Nagy <[email protected]>
Gerrit-Comment-Date: Tue, 15 May 2018 13:57:39 +0000
Gerrit-HasComments: Yes

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