[ARROW-16525] [C++] Tee node not properly marking node finished

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 9.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/31886
• Assignee: Weston Pace
• Reporter: Weston Pace
• Created: 11/May/22 04:50
• Updated: 11/Jan/23 11:44
• Resolved: 16/May/22 15:33

Description

The tee node was not properly marking the node finished. It needs to call End on the dataset writer and wait for all files to close and then call end on the task group and wait for all tasks to wrap up.

We also need to add tests for the TeeNode as well as a standalone test for the WriteNode.

Issue Links

• links to: GitHub Pull Request #13117