[HADOOP-6387] FsShell -getmerge source file pattern is broken

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Affects Version/s: 0.23.0
• Component/s: fs
• Assignee: Daryn Sharp
• Reporter: Eli Collins
• Created: 24/Nov/09 01:59
• Updated: 28/Mar/15 02:11
• Resolved: 23/Mar/12 20:54

Description

The FsShell -getmerge command doesn't work if the "source file pattern" matches files. See below. If the current behavior is intended then we should update the help documentation and java docs to match, but it would be nice if the user could specify a set of files in a directory rather than just directories.

$ hadoop fs -help getmerge
-getmerge <src> <localdst>:  Get all the files in the directories that 
		match the source file pattern and merge and sort them to only
		one file on local fs. <src> is kept.
$ hadoop fs -ls
Found 3 items
-rw-r--r--   1 eli supergroup          2 2009-11-23 17:39 /user/eli/1.txt
-rw-r--r--   1 eli supergroup          2 2009-11-23 17:39 /user/eli/2.txt
-rw-r--r--   1 eli supergroup          2 2009-11-23 17:39 /user/eli/3.txt
$ hadoop fs -getmerge /user/eli/*.txt sorted.txt
$ cat sorted.txt
cat: sorted.txt: No such file or directory
$ hadoop fs -getmerge /user/eli/* sorted.txt
$ cat sorted.txt
cat: sorted.txt: No such file or directory
$ hadoop fs -getmerge /user/* sorted.txt
$ cat sorted.txt 
1
2
3

Issue Links

• duplicates: HADOOP-8140 dfs -getmerge should process its argments better