[HDFS-9302] WebHDFS truncate throws NullPointerException if newLength is not provided

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.7.1
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: webhdfs

Environment

Centos6

• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Jagadesh Kiran N
• Reporter: Karthik Palaniappan
• Created: 24/Oct/15 00:13
• Updated: 30/Aug/16 01:24
• Resolved: 28/Oct/15 08:04

Description

$ curl -X POST "http://namenode:50070/webhdfs/v1/foo?op=truncate"
{"RemoteException":{"exception":"NullPointerException","javaClassName":"java.lang.NullPointerException","message":null}}

We should change newLength to be a required parameter in the webhdfs documentation (https://hadoop.apache.org/docs/r2.7.1/hadoop-project-dist/hadoop-hdfs/WebHDFS.html#New_Length), and throw an IllegalArgumentException if isn't provided.

Issue Links

• relates to: HDFS-9337 Validate required params for WebHDFS requests