Tim Armstrong has posted comments on this change.

Change subject: IMPALA-3905: HdfsScanner::GetNext() for Avro, RC, and Seq scans.
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Patch Set 5:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/6527/5/be/src/exec/kudu-scan-node.cc
File be/src/exec/kudu-scan-node.cc:

Line 179:       if 
(materialized_row_batches_->AddBatchWithTimeout(move(row_batch), 1000000)) {
> We could return a unique_ptr instead of a bool. In case of success we'd ret
I think BlockingPutWithTimeout() actually already supports this fine since it 
takes in a rvalue reference - it won't actually move the unique_ptr if it times 
out.

I think this should work if AddBatchWithTimeout() takes a 
unique_ptr<RowBatch>&&.

It's concerning that we don't seem to have any test coverage of this though.


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Gerrit-MessageType: comment
Gerrit-Change-Id: Ie18f57b0d3fe0052a8ccd361b6a5fcdf979d0669
Gerrit-PatchSet: 5
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Alex Behm <[email protected]>
Gerrit-Reviewer: Alex Behm <[email protected]>
Gerrit-Reviewer: Marcel Kornacker <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
Gerrit-Reviewer: anujphadke <[email protected]>
Gerrit-HasComments: Yes

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