Matthew Jacobs has posted comments on this change.

Change subject: IMPALA-3943: Adhere to abort_on_error in ProcessFooter().
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Patch Set 5:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/3862/5/be/src/exec/hdfs-parquet-scanner.cc
File be/src/exec/hdfs-parquet-scanner.cc:

PS5, Line 183: if (!status.ok()) return state_->LogOrReturnError(status.msg())
I don't understand why we expect this to work if the file_metadata_ and 
column_readers_ was never set but we return OK. It looks to me like we'd index 
into garbage in GetNextInternal() when we index into column_readers_[0] which 
was never populated by Open(). Perhaps I'm missing something though? I'd think 
we'd want a way to explicitly short circuit return from GetNextInternal(), 
which is I think what Tim was suggesting originally (before we went with the 
more surgical fix, and then obviously now we've backed out).


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Gerrit-MessageType: comment
Gerrit-Change-Id: I6aff766a1ce6376efb329bdde51c648149dfe08c
Gerrit-PatchSet: 5
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Alex Behm <[email protected]>
Gerrit-Reviewer: Alex Behm <[email protected]>
Gerrit-Reviewer: Dan Hecht <[email protected]>
Gerrit-Reviewer: Matthew Jacobs <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
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