[HDFS-328] Improve fs -setrep error message for invalid replication factors

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: namenode
• Labels: newbie
• Assignee: Daniel Templeton
• Reporter: Tsz Wo Nicholas Sze
• Created: 01/Aug/08 23:36
• Updated: 30/Aug/16 01:43
• Resolved: 02/Sep/15 20:51

Description

When the replication # is larger than dfs.replication.max (defined in conf), "fs -setrep" shows a meaningless error message. For example,

//dfs.replication.max is 512

$ hadoop fs -setrep 1000 r.txt
setrep: java.io.IOException: file /user/tsz/r.txt.