hadoop fs -ls globbing gives inconsistent exit code
---------------------------------------------------
Key: HDFS-2685
URL: https://issues.apache.org/jira/browse/HDFS-2685
Project: Hadoop HDFS
Issue Type: Bug
Affects Versions: 0.20.205.0, 0.20.204.0, 0.20.2
Reporter: Mitesh Singh Jat
_hadoop fs -ls_ command gives exit code for globbed input path, which is the
exit code for the last resolved absolute path. Whereas _ls_ command always give
same exit code regardless of position of non-existent path in globbing.
{code:bash}$ hadoop fs -mkdir input/20110{1,2,3}/{A,B,C,D}/{1,2} {code}
Since directory 'input/201104/' is not present, the following command gives 255
as exit code.
{code:bash}$ hadoop fs -ls input/20110{1,2,3,4}/ ; echo $? {code}
{noformat}
Found 4 items
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201101/A
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201101/B
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201101/C
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201101/D
Found 4 items
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201102/A
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201102/B
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201102/C
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201102/D
Found 4 items
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201103/A
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201103/B
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201103/C
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201103/D
ls: Cannot access input/201104/: No such file or directory.
{noformat}
{color:red}255{color}
The directory 'input/201104/' is not present but given as second last parameter
in globbing.
The following command gives 0 as exit code, because directory 'input/201103/'
is present.
{code:bash}$ hadoop fs -ls input/20110{1,2,4,3}/ ; echo $? {code}
{noformat}
Found 4 items
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201101/A
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201101/B
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201101/C
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201101/D
Found 4 items
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201102/A
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201102/B
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201102/C
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201102/D
ls: Cannot access input/201104/: No such file or directory.
Found 4 items
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201103/A
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201103/B
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201103/C
drwxr-xr-x - mitesh supergroup 0 2011-12-15 11:51
/user/mitesh/input/201103/D
{noformat}
{color:green}0{color}
Whereas, on Linux, ls command gives non-zero(2) as exit code, irrespective of
position of non-existent path in globbing.
{code:bash}$ mkdir -p input/20110{1,2,3,4}/{A,B,C,D}/{1,2} {code}
{code:bash}$ ls input/20110{1,2,4,3}/ ; echo $? {code}
{noformat}
/bin/ls: input/201104/: No such file or directory
input/201101/:
./ ../ A/ B/ C/ D/
input/201102/:
./ ../ A/ B/ C/ D/
input/201103/:
./ ../ A/ B/ C/ D/
{noformat}
{color:red}2{color}
{code:bash}$ ls input/20110{1,2,3,4}/ ; echo $? {code}
{noformat}
/bin/ls: input/201104/: No such file or directory
input/201101/:
./ ../ A/ B/ C/ D/
input/201102/:
./ ../ A/ B/ C/ D/
input/201103/:
./ ../ A/ B/ C/ D/
{noformat}
{color:red}2{color}
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
