[HDFS-5403] WebHdfs client cannot communicate with older WebHdfs servers post HDFS-5306

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.3.0
• Component/s: webhdfs
• Target Version/s: 2.3.0
• Hadoop Flags: Reviewed
• Assignee: Aaron Myers
• Reporter: Aaron Myers
• Created: 22/Oct/13 22:16
• Updated: 24/Feb/14 20:57
• Resolved: 23/Oct/13 15:31

Description

HDFS-5306 introduced the field infoSecurePort to the DatanodeIDProto PB definition and made it optional for compatibility purposes. However, we don't correctly the handle the case when this field is not present when deserializing the response from a WebHdfs request. This results in an NPE at the client when this occurs.

Issue Links

• relates to: HDFS-5449 WebHdfs compatibility broken between 2.2 and 1.x / 23.x