[HDFS-6065] HDFS zero-copy reads should return null on EOF when doing ZCR

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.0
• Fix Version/s: 2.4.0
• Component/s: hdfs-client
• Target Version/s: 2.4.0
• Hadoop Flags: Reviewed
• Assignee: Colin McCabe
• Reporter: Colin McCabe
• Created: 06/Mar/14 08:39
• Updated: 10/Apr/14 13:11
• Resolved: 07/Mar/14 01:20

Description

It would be nice if the HDFS zero-copy reads mechanism returned an empty buffer on EOF. Currently, it throws UnsupportedOperationException on EOF when using zero-copy reads, which seems confusing.