[MAPREDUCE-7494] File stream leak when LineRecordReader is interrupted

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.4.0, 3.3.6, 3.4.1
• Fix Version/s: 3.5.0
• Component/s: client
• Labels: pull-request-available
• Assignee: Davin Tjong
• Reporter: Davin Tjong
• Created: 15/Oct/24 23:24
• Updated: 20/Oct/24 11:55
• Resolved: 16/Oct/24 10:43

Description

In LineRecordReader, we may open a filestream:
```
fileIn = FutureIO.awaitFuture(builder.build());
```
However, we may be interrupted or otherwise throw an error before `in` is initialized, for example here:
```
fileIn.seek(start);
```
If this happens, the caller has no way to close this file stream causing it to leak.

Issue Links

• links to: GitHub Pull Request #7117
• links to: GitHub Pull Request #7119