[
https://issues.apache.org/jira/browse/ARROW-6126?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Wes McKinney resolved ARROW-6126.
---------------------------------
Resolution: Fixed
Issue resolved by pull request 5146
[https://github.com/apache/arrow/pull/5146]
> [C++] IPC stream reader handling of empty streams potentially not robust
> ------------------------------------------------------------------------
>
> Key: ARROW-6126
> URL: https://issues.apache.org/jira/browse/ARROW-6126
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Wes McKinney
> Assignee: Wes McKinney
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.15.0
>
> Time Spent: 2h 20m
> Remaining Estimate: 0h
>
> If dictionaries are expected in a stream, but the stream terminates, then
> "empty stream" logic is triggered to suppress errors, see
> https://github.com/apache/arrow/blob/master/cpp/src/arrow/ipc/reader.cc#L482
> It's probably esoteric but this "empty stream" logic will trigger if the
> stream terminates in the middle of the dictionary messages, which is a
> legitimate error. So we should only bail out early (concluding that we have
> an empty stream) if the first dictionary message is null
--
This message was sent by Atlassian Jira
(v8.3.2#803003)
