[ARROW-410] [C++] Add Flush method to arrow::io::OutputStream

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.2.0
• Component/s: C++
• External issue URL: https://github.com/apache/arrow/issues/16059
• Assignee: Wes McKinney
• Reporter: Wes McKinney
• Created: 07/Dec/16 17:28
• Updated: 11/Jan/23 07:08
• Resolved: 31/Jan/17 13:01

Description

Some output sinks have a flush() method separate from write(...). Rather than flushing all writes, we can leave this up to the implementation, and have a default no-op Flush implementation. This came up during ARROW-404 (ran into test failure with unflushed writes, because the Java HDFS client does not auto-flush)

Issue Links

• relates to: ARROW-404 [Python] Closing an HdfsClient while there are still open file handles results in a crash