I have successfully managed to mount a dfs - but here is what I am experiencing...

I mounted to /Volumes/hdfs when I run "ls /Volumes/hdfs" it works fine and returns no results.

so I ran "mkdir /Volumes/hdfs/test" and it was successful and I could see the new directory exists using the web interface to browse hadoop.

but now when I run "ls /Volumes/hdfs" it does this...

ls: cannot access /Volumes/hdfs/p-site.x0: No such file or directory
p-site.x0

and on the terminal window where I mounted it, it dumps this...

LOOKUP /p-site.x0
   unique: 13, error: -2 (No such file or directory), outsize: 16
unique: 14, opcode: READDIR (28), nodeid: 1, insize: 80
   unique: 14, error: 0 (Success), outsize: 16
unique: 15, opcode: RELEASEDIR (29), nodeid: 1, insize: 64
   unique: 15, error: 0 (Success), outsize: 16
unique: 16, opcode: GETATTR (3), nodeid: 1, insize: 56
   unique: 16, error: 0 (Success), outsize: 112
unique: 17, opcode: OPENDIR (27), nodeid: 1, insize: 48
   unique: 17, error: 0 (Success), outsize: 32
unique: 18, opcode: READDIR (28), nodeid: 1, insize: 80
   unique: 18, error: 0 (Success), outsize: 112
unique: 19, opcode: GETATTR (3), nodeid: 1, insize: 56
   unique: 19, error: 0 (Success), outsize: 112
unique: 20, opcode: LOOKUP (1), nodeid: 1, insize: 42

I am not sure what this debug info means?

Here is everything that happened on terminal 1 and 2...

terminal 1

r...@dynobuntu17:/opt/hadoop-0.20.2# contrib/fuse-dfs/ fuse_dfs_wrapper.sh dfs://dynobuntu10:8020 /Volumes/hdfs -d
port=8020,server=dynobuntu10
fuse-dfs didn't recognize /Volumes/hdfs,-2
fuse-dfs ignoring option -d
unique: 1, opcode: INIT (26), nodeid: 0, insize: 56
INIT: 7.10
flags=0x0000003b
max_readahead=0x00020000
   INIT: 7.8
   flags=0x00000001
   max_readahead=0x00020000
   max_write=0x00020000
   unique: 1, error: 0 (Success), outsize: 40
unique: 2, opcode: GETATTR (3), nodeid: 1, insize: 56
   unique: 2, error: 0 (Success), outsize: 112
unique: 3, opcode: OPENDIR (27), nodeid: 1, insize: 48
   unique: 3, error: 0 (Success), outsize: 32
unique: 4, opcode: READDIR (28), nodeid: 1, insize: 80
   unique: 4, error: -2 (No such file or directory), outsize: 16
unique: 5, opcode: RELEASEDIR (29), nodeid: 1, insize: 64
   unique: 5, error: 0 (Success), outsize: 16
unique: 6, opcode: GETATTR (3), nodeid: 1, insize: 56
   unique: 6, error: 0 (Success), outsize: 112
unique: 7, opcode: LOOKUP (1), nodeid: 1, insize: 45
LOOKUP /test
   unique: 7, error: -2 (No such file or directory), outsize: 16
unique: 8, opcode: MKDIR (9), nodeid: 1, insize: 53
MKDIR /test
   NODEID: 2
   unique: 8, error: 0 (Success), outsize: 136
unique: 9, opcode: GETATTR (3), nodeid: 1, insize: 56
   unique: 9, error: 0 (Success), outsize: 112
unique: 10, opcode: OPENDIR (27), nodeid: 1, insize: 48
   unique: 10, error: 0 (Success), outsize: 32
unique: 11, opcode: READDIR (28), nodeid: 1, insize: 80
   unique: 11, error: 0 (Success), outsize: 120
unique: 12, opcode: GETATTR (3), nodeid: 1, insize: 56
   unique: 12, error: 0 (Success), outsize: 112
unique: 13, opcode: LOOKUP (1), nodeid: 1, insize: 50
LOOKUP /p-site.x0
   unique: 13, error: -2 (No such file or directory), outsize: 16
unique: 14, opcode: READDIR (28), nodeid: 1, insize: 80
   unique: 14, error: 0 (Success), outsize: 16
unique: 15, opcode: RELEASEDIR (29), nodeid: 1, insize: 64
   unique: 15, error: 0 (Success), outsize: 16
unique: 16, opcode: GETATTR (3), nodeid: 1, insize: 56
   unique: 16, error: 0 (Success), outsize: 112
unique: 17, opcode: OPENDIR (27), nodeid: 1, insize: 48
   unique: 17, error: 0 (Success), outsize: 32
unique: 18, opcode: READDIR (28), nodeid: 1, insize: 80
   unique: 18, error: 0 (Success), outsize: 112
unique: 19, opcode: GETATTR (3), nodeid: 1, insize: 56
   unique: 19, error: 0 (Success), outsize: 112
unique: 20, opcode: LOOKUP (1), nodeid: 1, insize: 42
LOOKUP /%
   unique: 20, error: -2 (No such file or directory), outsize: 16
unique: 21, opcode: READDIR (28), nodeid: 1, insize: 80
   unique: 21, error: 0 (Success), outsize: 16
unique: 22, opcode: RELEASEDIR (29), nodeid: 1, insize: 64
   unique: 22, error: 0 (Success), outsize: 16
unique: 23, opcode: GETATTR (3), nodeid: 1, insize: 56
   unique: 23, error: 0 (Success), outsize: 112
unique: 24, opcode: OPENDIR (27), nodeid: 1, insize: 48
   unique: 24, error: 0 (Success), outsize: 32
unique: 25, opcode: READDIR (28), nodeid: 1, insize: 80
   unique: 25, error: 0 (Success), outsize: 112
unique: 26, opcode: GETATTR (3), nodeid: 1, insize: 56
   unique: 26, error: 0 (Success), outsize: 112
unique: 27, opcode: LOOKUP (1), nodeid: 1, insize: 42
LOOKUP /1
   unique: 27, error: -2 (No such file or directory), outsize: 16
unique: 28, opcode: READDIR (28), nodeid: 1, insize: 80
   unique: 28, error: 0 (Success), outsize: 16
unique: 29, opcode: RELEASEDIR (29), nodeid: 1, insize: 64
   unique: 29, error: 0 (Success), outsize: 16
unique: 30, opcode: GETATTR (3), nodeid: 1, insize: 56
   unique: 30, error: 0 (Success), outsize: 112
unique: 31, opcode: OPENDIR (27), nodeid: 2, insize: 48
   unique: 31, error: 0 (Success), outsize: 32
unique: 32, opcode: READDIR (28), nodeid: 2, insize: 80
   unique: 32, error: -2 (No such file or directory), outsize: 16
unique: 33, opcode: RELEASEDIR (29), nodeid: 2, insize: 64
   unique: 33, error: 0 (Success), outsize: 16
unique: 34, opcode: OPENDIR (27), nodeid: 1, insize: 48
   unique: 34, error: 0 (Success), outsize: 32
unique: 35, opcode: READDIR (28), nodeid: 1, insize: 80
   unique: 35, error: 0 (Success), outsize: 120
unique: 36, opcode: GETATTR (3), nodeid: 1, insize: 56
   unique: 36, error: 0 (Success), outsize: 112
unique: 37, opcode: LOOKUP (1), nodeid: 1, insize: 50
LOOKUP /d-site.x0
   unique: 37, error: -2 (No such file or directory), outsize: 16
unique: 38, opcode: READDIR (28), nodeid: 1, insize: 80
   unique: 38, error: 0 (Success), outsize: 16
unique: 39, opcode: RELEASEDIR (29), nodeid: 1, insize: 64
   unique: 39, error: 0 (Success), outsize: 16
unique: 40, opcode: GETATTR (3), nodeid: 1, insize: 56
   unique: 40, error: 0 (Success), outsize: 112
unique: 41, opcode: LOOKUP (1), nodeid: 1, insize: 45
LOOKUP /test
   NODEID: 2
   unique: 41, error: 0 (Success), outsize: 136
unique: 42, opcode: LOOKUP (1), nodeid: 2, insize: 47
LOOKUP /test/inside
   unique: 42, error: -2 (No such file or directory), outsize: 16
unique: 43, opcode: MKDIR (9), nodeid: 2, insize: 55
MKDIR /test/inside
   NODEID: 3
   unique: 43, error: 0 (Success), outsize: 136
unique: 44, opcode: GETATTR (3), nodeid: 2, insize: 56
   unique: 44, error: 0 (Success), outsize: 112
unique: 45, opcode: OPENDIR (27), nodeid: 2, insize: 48
   unique: 45, error: 0 (Success), outsize: 32
unique: 46, opcode: READDIR (28), nodeid: 2, insize: 80
   unique: 46, error: 0 (Success), outsize: 112
unique: 47, opcode: GETATTR (3), nodeid: 2, insize: 56
   unique: 47, error: 0 (Success), outsize: 112
unique: 48, opcode: LOOKUP (1), nodeid: 2, insize: 42
LOOKUP /test/e
   unique: 48, error: -2 (No such file or directory), outsize: 16
unique: 49, opcode: READDIR (28), nodeid: 2, insize: 80
   unique: 49, error: 0 (Success), outsize: 16
unique: 50, opcode: RELEASEDIR (29), nodeid: 2, insize: 64
   unique: 50, error: 0 (Success), outsize: 16
unique: 51, opcode: GETATTR (3), nodeid: 2, insize: 56
   unique: 51, error: 0 (Success), outsize: 112
unique: 52, opcode: OPENDIR (27), nodeid: 2, insize: 48
   unique: 52, error: 0 (Success), outsize: 32
unique: 53, opcode: READDIR (28), nodeid: 2, insize: 80
   unique: 53, error: 0 (Success), outsize: 112
unique: 54, opcode: GETATTR (3), nodeid: 2, insize: 56
   unique: 54, error: 0 (Success), outsize: 112
unique: 55, opcode: LOOKUP (1), nodeid: 2, insize: 42
LOOKUP /test/e
   unique: 55, error: -2 (No such file or directory), outsize: 16
unique: 56, opcode: READDIR (28), nodeid: 2, insize: 80
   unique: 56, error: 0 (Success), outsize: 16
unique: 57, opcode: RELEASEDIR (29), nodeid: 2, insize: 64
   unique: 57, error: 0 (Success), outsize: 16
unique: 58, opcode: GETATTR (3), nodeid: 2, insize: 56
   unique: 58, error: 0 (Success), outsize: 112
unique: 59, opcode: OPENDIR (27), nodeid: 2, insize: 48
   unique: 59, error: 0 (Success), outsize: 32
unique: 60, opcode: READDIR (28), nodeid: 2, insize: 80
   unique: 60, error: 0 (Success), outsize: 112
unique: 61, opcode: GETATTR (3), nodeid: 2, insize: 56
   unique: 61, error: 0 (Success), outsize: 112
unique: 62, opcode: LOOKUP (1), nodeid: 2, insize: 42
LOOKUP /test/e
   unique: 62, error: -2 (No such file or directory), outsize: 16
unique: 63, opcode: READDIR (28), nodeid: 2, insize: 80
   unique: 63, error: 0 (Success), outsize: 16
unique: 64, opcode: RELEASEDIR (29), nodeid: 2, insize: 64
   unique: 64, error: 0 (Success), outsize: 16
unique: 65, opcode: GETATTR (3), nodeid: 2, insize: 56
   unique: 65, error: 0 (Success), outsize: 112
unique: 66, opcode: OPENDIR (27), nodeid: 2, insize: 48
   unique: 66, error: 0 (Success), outsize: 32
unique: 67, opcode: READDIR (28), nodeid: 2, insize: 80
   unique: 67, error: 0 (Success), outsize: 112
unique: 68, opcode: GETATTR (3), nodeid: 2, insize: 56
   unique: 68, error: 0 (Success), outsize: 112
unique: 69, opcode: LOOKUP (1), nodeid: 2, insize: 42
LOOKUP /test/e
   unique: 69, error: -2 (No such file or directory), outsize: 16
unique: 70, opcode: READDIR (28), nodeid: 2, insize: 80
   unique: 70, error: 0 (Success), outsize: 16
unique: 71, opcode: RELEASEDIR (29), nodeid: 2, insize: 64
   unique: 71, error: 0 (Success), outsize: 16
unique: 72, opcode: GETATTR (3), nodeid: 2, insize: 56
   unique: 72, error: 0 (Success), outsize: 112
unique: 73, opcode: OPENDIR (27), nodeid: 2, insize: 48
   unique: 73, error: 0 (Success), outsize: 32
unique: 74, opcode: READDIR (28), nodeid: 2, insize: 80
   unique: 74, error: 0 (Success), outsize: 112
unique: 75, opcode: GETATTR (3), nodeid: 2, insize: 56
   unique: 75, error: 0 (Success), outsize: 112
unique: 76, opcode: LOOKUP (1), nodeid: 2, insize: 42
LOOKUP /test/e
   unique: 76, error: -2 (No such file or directory), outsize: 16
unique: 77, opcode: READDIR (28), nodeid: 2, insize: 80
   unique: 77, error: 0 (Success), outsize: 16
unique: 78, opcode: RELEASEDIR (29), nodeid: 2, insize: 64
   unique: 78, error: 0 (Success), outsize: 16

terminal 2

r...@dynobuntu17:~# ls /Volumes/hdfs/
r...@dynobuntu17:~# mkdir /Volumes/hdfs/test
r...@dynobuntu17:~# ls /Volumes/hdfs/
ls: cannot access /Volumes/hdfs/p-site.x0: No such file or directory
p-site.x0
r...@dynobuntu17:~# ls /Volumes/hdfs/
ls: cannot access /Volumes/hdfs/%: No such file or directory
%
r...@dynobuntu17:~# ls /Volumes/hdfs
ls: cannot access /Volumes/hdfs/1: No such file or directory
1
r...@dynobuntu17:~# ls /Volumes/hdfs/test
r...@dynobuntu17:~# ls /Volumes/hdfs/
ls: cannot access /Volumes/hdfs/d-site.x0: No such file or directory
d-site.x0
r...@dynobuntu17:~# mkdir /Volumes/hdfs/test/inside
r...@dynobuntu17:~# ls /Volumes/hdfs/test
ls: cannot access /Volumes/hdfs/test/e: No such file or directory
e
r...@dynobuntu17:~# ls /Volumes/hdfs/test
ls: cannot access /Volumes/hdfs/test/e: No such file or directory
e
r...@dynobuntu17:~# ls /Volumes/hdfs/\test
ls: cannot access /Volumes/hdfs/test/e: No such file or directory
e
r...@dynobuntu17:~# ls /Volumes/hdfs/\te\s\t
ls: cannot access /Volumes/hdfs/test/e: No such file or directory
e
r...@dynobuntu17:~# ls /Volumes/hdfs/\t\e\s\t
ls: cannot access /Volumes/hdfs/test/e: No such file or directory
e


On 05 May 2010, at 4:57 PM, Seraph Imalia wrote:

Awesome! - thank you after running apt-get install libfuse-dev I got a successful build.

Thanks for your help :)


On 05 May 2010, at 4:19 PM, Jason Venner wrote:

It does not look like you have the fuse-devel package installed on your system.

On Wed, May 5, 2010 at 7:14 AM, Seraph Imalia <ser...@eisp.co.za> wrote:
Hi Jason,

Thank you, I had autoconf installed but not automake - after installing
automake, the build went further, but this time failed with...

BUILD FAILED
/opt/hadoop-0.20.2/build.xml:497: The following error occurred while
executing this line:
/opt/hadoop-0.20.2/src/contrib/build.xml:30: The following error occurred
while executing this line:
/opt/hadoop-0.20.2/src/contrib/fuse-dfs/build.xml:57: exec returned: 2

The output from the build is attached.



We are running OS: Ubuntu 9.04 x64 (2.6.28-11-server #42-Ubuntu SMP Fri Apr
17 02:45:36 UTC 2009 GNU/Linux)

Regards,
Seraph


On 05 May 2010, at 3:47 PM, Jason Venner wrote:

You will need to install the gnu development tool chain for your
platform, a quick check on an older redhat system I have suggests the
automake and autoconf rpm's will provide aclocal, automake and
autoconf.
The ./configure: not found error is an artifact of the earlier failures.


On Wed, May 5, 2010 at 5:37 AM, Seraph Imalia <ser...@eisp.co.za> wrote:

Hi,
I have been following the following URL to mount an HDFS using
fuse-dfs: http://wiki.apache.org/hadoop/MountableHDFS
I have had many problems trying to build it but have managed to get
through
the first two build commands without build errors. Running the last
build
command "ant compile-contrib -Dlibhdfs=1 -Dfusedfs=1" results in the
following error:
compile:
   [echo] contrib: fuse-dfs
[exec] /opt/hadoop-0.20.1/src/contrib/fuse-dfs/bootstrap.sh: 18:
aclocal: not found
[exec] /opt/hadoop-0.20.1/src/contrib/fuse-dfs/bootstrap.sh: 19:
automake: not found
[exec] /opt/hadoop-0.20.1/src/contrib/fuse-dfs/bootstrap.sh: 20:
autoconf: not found
[exec] /opt/hadoop-0.20.1/src/contrib/fuse-dfs/bootstrap.sh: 21:
./configure: not found
BUILD FAILED
/opt/hadoop-0.20.1/build.xml:497: The following error occurred while
executing this line:
/opt/hadoop-0.20.1/src/contrib/build.xml:30: The following error occurred
while executing this line:
/opt/hadoop-0.20.1/src/contrib/fuse-dfs/build.xml:54: exec returned: 127
I found this link on
google: http://issues.apache.org/jira/browse/HADOOP-4 which does not seem
to
help me.
Please can you assist?
Regards,
Seraph



--
Pro Hadoop, a book to guide you from beginner to hadoop mastery,
http://www.amazon.com/dp/1430219424?tag=jewlerymall
www.prohadoopbook.com a community for Hadoop Professionals






--
Pro Hadoop, a book to guide you from beginner to hadoop mastery,
http://www.amazon.com/dp/1430219424?tag=jewlerymall
www.prohadoopbook.com a community for Hadoop Professionals



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