Hi Eli,
Thank you for your reply and advise.
I uncommented "// #define DOTRACE" in fuse_dfs.h.
$ cd $HADOOP_HOME/src/contrib/fuse-dfs/src
$ vi fuse_dfs.h
・
・
53 //#define DOTRACE ⇒ #define DOTRACE
54 #ifdef DOTRACE
・
・
Then, I re-compiled that.
$ cd $HADOOP_HOME
$ ant compile-c++-libhdfs -Dlibhdfs=1 -Dcompile.c++=1
$ ln -s c++/Linux-amd64-64/lib/ build/libhdfs
$ ant compile-contrib -Dlibhdfs=1 -Dfusedfs=1
However, it became a same result.
I'm using HADOOP-0.20.1.
■Term A
$ ./fuse_dfs_wrapper.sh dfs://drbd-test-vm03:8020 /mnt/hdfs/ -d
port=8020,server=drbd-test-vm03
fuse-dfs didn't recognize /mnt/hdfs/,-2
fuse-dfs ignoring option -d
unique: 1, opcode: INIT (26), nodeid: 0, insize: 56
INIT: 7.8
flags=0x00000003
max_readahead=0x00020000
INIT: 7.8
flags=0x00000001
max_readahead=0x00020000
max_write=0x00020000
unique: 1, error: 0 (Success), outsize: 40
・
・
・
■Term B
$ df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
9047928 6148328 2436000 72% /
/dev/xvda1 101086 13230 82637 14% /boot
tmpfs 1048576 0 1048576 0% /dev/shm
/dev/drbd0 4925336 141244 4533892 4% /drbd
$ ls -ltr /mnt/hdfs
ls: reading directory /mnt/hdfs: Input/output error
total 0
I executed "ls -ltr /mnt/hdfs" several times until a different result came out.
$ ls -ltr /mnt/hdfs
total 0
?--------- ? ? ? ? ? l
■Results
When I executed "df" in Term B,
It became the following result in Term A:
unique: 2, opcode: STATFS (17), nodeid: 1, insize: 40
fuse_dfs TRACE - statfs /
unique: 2, error: 0 (Success), outsize: 96
When I executed "ls -ltr /mnt/hdfs" in Term B,
It became the following result in Term A:
unique: 3, opcode: GETATTR (3), nodeid: 1, insize: 40
fuse_dfs TRACE - getattr /
unique: 3, error: 0 (Success), outsize: 112
unique: 4, opcode: GETXATTR (22), nodeid: 1, insize: 72
unique: 4, error: -38 (Function not implemented), outsize: 16
unique: 5, opcode: GETATTR (3), nodeid: 1, insize: 40
fuse_dfs TRACE - getattr /
unique: 5, error: 0 (Success), outsize: 112
unique: 6, opcode: OPENDIR (27), nodeid: 1, insize: 48
unique: 6, error: 0 (Success), outsize: 32
unique: 7, opcode: GETATTR (3), nodeid: 1, insize: 40
fuse_dfs TRACE - getattr /
unique: 7, error: 0 (Success), outsize: 112
unique: 8, opcode: READDIR (28), nodeid: 1, insize: 64
fuse_dfs TRACE - readdir /
unique: 8, error: 0 (Success), outsize: 104
unique: 9, opcode: RELEASEDIR (29), nodeid: 1, insize: 64
unique: 9, error: 0 (Success), outsize: 16
When I executed "ls -ltr /mnt/hdfs" several times in Term B,
It became the following different result in Term A:
unique: 44, opcode: GETATTR (3), nodeid: 1, insize: 40
fuse_dfs TRACE - getattr /
unique: 44, error: 0 (Success), outsize: 112
unique: 45, opcode: GETATTR (3), nodeid: 1, insize: 40
fuse_dfs TRACE - getattr /
unique: 45, error: 0 (Success), outsize: 112
unique: 46, opcode: OPENDIR (27), nodeid: 1, insize: 48
unique: 46, error: 0 (Success), outsize: 32
unique: 47, opcode: GETATTR (3), nodeid: 1, insize: 40
fuse_dfs TRACE - getattr /
unique: 47, error: 0 (Success), outsize: 112
unique: 48, opcode: READDIR (28), nodeid: 1, insize: 64
fuse_dfs TRACE - readdir /
unique: 48, error: 0 (Success), outsize: 112
unique: 49, opcode: LOOKUP (1), nodeid: 1, insize: 42
LOOKUP /l
fuse_dfs TRACE - getattr /l
unique: 49, error: -2 (No such file or directory), outsize: 16
unique: 50, opcode: READDIR (28), nodeid: 1, insize: 64
unique: 50, error: 0 (Success), outsize: 16
unique: 51, opcode: RELEASEDIR (29), nodeid: 1, insize: 64
unique: 51, error: 0 (Success), outsize: 16
Are there anything else I can do?
Best Regards,
Tadashi.
> -----Original Message-----
> From: Eli Collins [mailto:e...@cloudera.com]
> Sent: Wednesday, January 13, 2010 5:20 AM
> To: hdfs-user@hadoop.apache.org
> Subject: Re: fuse-dfs
>
> Hey Tadashi,
>
> Think the next step is to uncomment "// #define DOTRACE" in
> fuse_dfs.h, re-compile and see what output that yields. I'd also be
> curious if you see the issue using 20.1.
>
> Thanks,
> Eli
>
> 2010/1/11 <tate...@nttdata.co.jp>:
> > Hi Eli,
> >
> > Thank you for your reply,
> >
> >> Is this the same exact hostname (drbd-test-vm03:8020) you use for
> >> fs.default.name in hadoop-site.xml/core-site.xml? They need to match
> >> up.
> >
> > I use the same exact hostname(drbd-test-vm03).
> >
> > Core-site.xml
> > <property>
> > <name>fs.default.name</name>
> > <value>hdfs://drbd-test-vm03/</value>
> > </property>
> >
> > Are there anything else I should check?
> >
> > Best regards,
> > Tadashi
> >> -----Original Message-----
> >> From: Eli Collins [mailto:e...@cloudera.com]
> >> Sent: Sunday, January 10, 2010 6:03 PM
> >> To: hdfs-user@hadoop.apache.org
> >> Subject: Re: fuse-dfs
> >>
> >> > I executed the following command with term A:
> >> > ./fuse_dfs_wrapper.sh dfs://drbd-test-vm03:8020 /mnt/hdfs -d
> >>
> >> Is this the same exact hostname (drbd-test-vm03:8020) you use for
> >> fs.default.name in hadoop-site.xml/core-site.xml? They need to match
> >> up.
> >>
> >> Thanks,
> >> Eli
> >
