Michael Smith has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/18219 )

Change subject: IMPALA-11064 Optimizing Temporary File Structure for Batch 
Reading
......................................................................


Patch Set 4:

(3 comments)

http://gerrit.cloudera.org:8080/#/c/18219/4/be/src/runtime/io/local-file-writer.cc
File be/src/runtime/io/local-file-writer.cc:

http://gerrit.cloudera.org:8080/#/c/18219/4/be/src/runtime/io/local-file-writer.cc@92
PS4, Line 92:       written_bytes_ += write_range->len();
We only update written_bytes_ if you pass in a ref to get the value? Could 
there be mixed use of WriteOne?


http://gerrit.cloudera.org:8080/#/c/18219/4/be/src/runtime/io/request-context.cc
File be/src/runtime/io/request-context.cc:

http://gerrit.cloudera.org:8080/#/c/18219/4/be/src/runtime/io/request-context.cc@577
PS4, Line 577:   if (state_ != RequestContext::Active) return CONTEXT_CANCELLED;
This needs some explanation. Why is it different from AddWriteRange and 
IsCancelled?


http://gerrit.cloudera.org:8080/#/c/18219/4/be/src/runtime/tmp-file-mgr.cc
File be/src/runtime/tmp-file-mgr.cc:

http://gerrit.cloudera.org:8080/#/c/18219/4/be/src/runtime/tmp-file-mgr.cc@123
PS4, Line 123:     "size would be the nth power of 2");
End sentence with a period for consistency.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: If913785cac9e2dafa20013b6600c87fcaf3e2018
Gerrit-Change-Number: 18219
Gerrit-PatchSet: 4
Gerrit-Owner: Yida Wu <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Michael Smith <[email protected]>
Gerrit-Comment-Date: Wed, 15 Jun 2022 18:01:05 +0000
Gerrit-HasComments: Yes

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