[HDFS-7163] WebHdfsFileSystem should retry reads according to the configured retry policy.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.1, 3.0.0-alpha1
• Fix Version/s: 2.8.0, 2.7.3, 3.0.0-alpha1
• Component/s: webhdfs
• Target Version/s: 2.8.0, 2.7.3
• Assignee: Eric Payne
• Reporter: Eric Payne
• Created: 29/Sep/14 14:24
• Updated: 14/Oct/19 15:37
• Resolved: 28/Dec/15 17:06

Description

In the current implementation of WebHdfsFileSystem, opens are retried according to the configured retry policy, but not reads. Therefore, if a connection goes down while data is being read, the read will fail and the read will have to be retried by the client code.

Also, after a connection has been established, the next read (or seek/read) will fail and the read will have to be restarted by the client code.