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From Weiming Lu <weimin...@gmail.com>
Subject Re: Help with fuse-dfs
Date Sat, 19 Dec 2009 11:49:05 GMT
We run the "ls -al /mnt/dfs", we got the fuse-dfds debug output:
port=54310,server=10.15.62.4
fuse-dfs didn't recognize /mnt/dfs,-2
fuse-dfs ignoring option -d
fuse-dfs ignoring option allow_other
FUSE library version: 2.8.1
nullpath_ok: 0
unique: 1, opcode: INIT (26), nodeid: 0, insize: 56
INIT: 7.9
flags=0x0000000b
max_readahead=0x00020000
   INIT: 7.12
   flags=0x00000011
   max_readahead=0x00020000
   max_write=0x00020000
   unique: 1, success, outsize: 40
unique: 2, opcode: GETATTR (3), nodeid: 1, insize: 56
getattr /
fuse_dfs TRACE - getattr /
   unique: 2, success, outsize: 120
unique: 3, opcode: GETXATTR (22), nodeid: 1, insize: 65
   unique: 3, error: -38 (Function not implemented), outsize: 16
unique: 4, opcode: OPENDIR (27), nodeid: 1, insize: 48
   unique: 4, success, outsize: 32
unique: 5, opcode: READDIR (28), nodeid: 1, insize: 80
readdir[0] from 0
fuse_dfs TRACE - readdir /
   unique: 5, success, outsize: 200
unique: 6, opcode: RELEASEDIR (29), nodeid: 1, insize: 64
   unique: 6, success, outsize: 16

There is an ERROR "function not implemented".
But when we do "ls /mnt/dfs", we got the output:
unique: 7, opcode: GETATTR (3), nodeid: 1, insize: 56
getattr /
fuse_dfs TRACE - getattr /
   unique: 7, success, outsize: 120
unique: 8, opcode: OPENDIR (27), nodeid: 1, insize: 48
   unique: 8, success, outsize: 32
unique: 9, opcode: READDIR (28), nodeid: 1, insize: 80
readdir[0] from 0
fuse_dfs TRACE - readdir /
   unique: 9, success, outsize: 200
unique: 10, opcode: RELEASEDIR (29), nodeid: 1, insize: 64
   unique: 10, success, outsize: 16

Weiming



On Sat, Dec 19, 2009 at 2:52 AM, Eli Collins <eli@cloudera.com> wrote:
> Thanks for the info.  Please uncomment "//#define DOTRACE" in
> fuse_dfs.h, recompile, and ls /mnt/dfs again and post the trace. That
> will help identify the particular error that's causing the failure
> below.
>
>> getdents(3, 0x61fec8, 512)              = -1 EIO (Input/output error)
>> write(2, "ls: ", 4ls: )                     = 4
>> write(2, "reading directory /mnt/dfs", 26reading directory /mnt/dfs) = 26
>> write(2, ": Input/output error", 20: Input/output error)    = 20
>> write(2, "\n", 1
>
> Thanks,
> Eli
>

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