Alexey Serbin has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/18420 )

Change subject: [java] Fix a scan bug which will read repetitive rows.
......................................................................


Patch Set 18:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/18420/15/java/kudu-client/src/test/java/org/apache/kudu/client/ITScannerMultiTablet.java
File 
java/kudu-client/src/test/java/org/apache/kudu/client/ITScannerMultiTablet.java:

http://gerrit.cloudera.org:8080/#/c/18420/15/java/kudu-client/src/test/java/org/apache/kudu/client/ITScannerMultiTablet.java@54
PS15, Line 54: 90000
> The table has 3 tablets.
OK, I see -- thank you for the explanation.

You can try using the batchSizeBytes setter for KuduScannerBuilder: 
https://kudu.apache.org/apidocs/org/apache/kudu/client/KuduScanner.KuduScannerBuilder.html

It's better to keep the amount of data smaller overall and use more data only 
when necessary -- it adds up when running multiple test scenarios, increasing 
the overall runtime of the tests.


http://gerrit.cloudera.org:8080/#/c/18420/15/java/kudu-client/src/test/java/org/apache/kudu/client/ITScannerMultiTablet.java@83
PS15, Line 83: harness.getClient().isCreateTableDone(TABLE_NAME))
> I just don't waste the last 1 second.
I guess you wouldn't waste the last 1 second -- there is 'break' at line 79, 
and if anything, you could simply increase the number of retries by one.



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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I4d6be9df10c1a45cd971b52a0351028c1f5a023f
Gerrit-Change-Number: 18420
Gerrit-PatchSet: 18
Gerrit-Owner: Yuqi Du <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Andrew Wong <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Yifan Zhang <[email protected]>
Gerrit-Reviewer: Yingchun Lai <[email protected]>
Gerrit-Reviewer: Yuqi Du <[email protected]>
Gerrit-Comment-Date: Thu, 28 Apr 2022 17:38:40 +0000
Gerrit-HasComments: Yes

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