[HDFS-6214] Webhdfs has poor throughput for files >2GB

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha, 3.0.0-alpha1
• Fix Version/s: 2.5.0
• Component/s: webhdfs
• Target Version/s: 2.5.0
• Hadoop Flags: Reviewed
• Assignee: Daryn Sharp
• Reporter: Daryn Sharp
• Created: 09/Apr/14 14:59
• Updated: 12/May/16 18:17
• Resolved: 16/Apr/14 16:07

Description

For the DN's open call, jetty returns a Content-Length header for files <2GB, and uses chunking for files >2GB. A "bug" in jetty's buffer handling results in a ~8X reduction in throughput.