[HDFS-1079] HDFS implementation should throw exceptions defined in AbstractFileSystem

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.22.0
• Component/s: namenode
• Hadoop Flags: Reviewed

Release Note

Specific exceptions are thrown from HDFS implementation and protocol per the interface defined in AbstractFileSystem. The compatibility is not affected as the applications catch IOException and will be able to handle specific exceptions that are subclasses of IOException.

• Assignee: Suresh Srinivas
• Reporter: Suresh Srinivas
• Created: 05/Apr/10 22:41
• Updated: 12/Dec/11 06:18
• Resolved: 14/May/10 03:41

Description

HDFS implementation Hdfs.java should throw exceptions as defined in AbstractFileSystem. To facilitate this, ClientProtocol should be changed to throw specific exceptions, as defined in AbstractFileSystem.

Issue Links

• relates to: HDFS-1151 HDFS should throw HadoopIllegalArgumentException instead of IllegalArgumentException
• relates to: HDFS-1124 Replace IOException thrown in HDFS implementation to more specific exceptions
• relates to: HADOOP-6537 Proposal for exceptions thrown by FileContext and Abstract File System
• relates to: HADOOP-6736 Add tests for checking exceptions thrown from FileContext for different file system implementation