Alexey Serbin has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/17708 )

Change subject: [tools] --scan_batch_size for 'table scan' and 'perf table_scan'
......................................................................


Patch Set 1:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/17708/1/src/kudu/tools/table_scanner.cc
File src/kudu/tools/table_scanner.cc:

http://gerrit.cloudera.org:8080/#/c/17708/1/src/kudu/tools/table_scanner.cc@606
PS1, Line 606: =
> What does scan_batch_size of 0 mean?
It means the first batch in the scan response will be without any data.  It's 
documented in the client's API: 
https://github.com/apache/kudu/blob/5e895c642d28a1c5e3ee0845bb0775fe2e106d29/src/kudu/client/client.h#L2813-L2819

I added a comment to clarify on this.


http://gerrit.cloudera.org:8080/#/c/17708/1/src/kudu/tools/tool_action_table.cc
File src/kudu/tools/tool_action_table.cc:

http://gerrit.cloudera.org:8080/#/c/17708/1/src/kudu/tools/tool_action_table.cc@118
PS1, Line 118: The size for scan results batches, in bytes. A negative value "
             :              "(e.g., -1) means the server-side default is used.
> Nit: As a user I'm curious to know what's the default server-side scan batc
Yep, as far as I can see, we don't provide a means to peek at that if using 
client API.

It's a good idea to point to the corresponding server-side flag.

Done.



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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I4fd5962eeda1d1d7921c6b70521f2d611ee1f3c7
Gerrit-Change-Number: 17708
Gerrit-PatchSet: 1
Gerrit-Owner: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Bankim Bhavsar <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Comment-Date: Wed, 21 Jul 2021 19:32:34 +0000
Gerrit-HasComments: Yes

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