Bug 1282319

+++ This bug was initially created as a clone of Bug #1031016 +++

Description of problem:
In case of DHT volume, brick logs has '(null)' as a path for operations like OPENDIR, MKDIR, MKNOD, SETXATTR

e.g
log snippet from brick

[2013-11-14 01:52:01.592994] I [server-rpc-fops.c:705:server_opendir_cbk] 0-dht-server: 61510: OPENDIR (null) (16bb3787-361d-4977-8c66-
a62b8d2f70a3) ==> (No such file or directory)
[2013-11-14 03:14:56.011608] I [server-rpc-fops.c:528:server_mkdir_cbk] 0-dht-server: 32254: MKDIR (null) (00000000-0000-0000-0000-0000
00000001/{1.1000000}) ==> (File exists)
[2013-11-14 03:18:18.304290] I [server-rpc-fops.c:438:server_access_cbk] 0-dht-server: 47194: ACCESS (null) (2d0887f8-358d-4758-949f-db
bd06d67265) ==> (No such file or directory)
[2013-11-14 03:18:18.317609] I [server-rpc-fops.c:705:server_opendir_cbk] 0-dht-server: 47197: OPENDIR (null) (2d0887f8-358d-4758-949f-
dbbd06d67265) ==> (No such file or directory)
...
[2013-11-14 06:32:14.172144] I [server-rpc-fops.c:898:_gf_server_log_setxattr_failure] 0-dht-server: 164153: SETXATTR (null) (85258d5e-
fde6-4452-a4cf-71ef0568129a) ==> trusted.glusterfs.dht
[2013-11-14 06:32:14.174551] I [server-rpc-fops.c:528:server_mkdir_cbk] 0-dht-server: 285540: MKDIR (null) (00000000-0000-0000-0000-000
000000001/118) ==> (File exists)
[2013-11-14 06:32:14.202874] I [server-rpc-fops.c:575:server_mknod_cbk] 0-dht-server: 285551: MKNOD (null) (bf070eaf-2822-40b7-ab44-24d
91926db45/f7) ==> (File exists)

In most of the cases reason  is '(File exists)' or ' (No such file or directory)'


Version-Release number of selected component (if applicable):
============================================================= 
3.4.0.44rhs-1.el6rhs.x86_64



How reproducible:
always


Steps to Reproduce:
1.create DHT volume and mout it using FUSE and NFS
2. create, delete files/Directories from both mount point simultaneously.
3. Keep checking logs.

Actual results:
for many operation directory/file path is  '(null)' in brick  log 

Expected results:
It should show path of that Dir/file

Additional info:

--- Additional comment from Rachana Patel on 2013-11-15 08:34:31 EST ---

sosreport @ http://rhsqe-repo.lab.eng.blr.redhat.com/sosreports/1030309

volume info:-
[root@7-VM3 glusterfs]# gluster v info dht
 
Volume Name: dht
Type: Distribute
Volume ID: 29b35eed-9b1a-443b-914a-e77d9452eb47
Status: Started
Number of Bricks: 4
Transport-type: tcp
Bricks:
Brick1: 10.70.36.132:/rhs/brick4/d1
Brick2: 10.70.36.132:/rhs/brick4/d2
Brick3: 10.70.36.132:/rhs/brick4/d3
Brick4: 10.70.36.132:/rhs/brick4/d4



mount info:-

[root@rhs-client22 dht-nfs]# mount | grep dht
10.70.36.132:/dht on /mnt/dht type fuse.glusterfs (rw,default_permissions,allow_other,max_read=131072)
10.70.36.132:/dht on /mnt/dht-nfs type nfs (rw,addr=10.70.36.132)


--- Additional comment from Amar Tumballi on 2013-12-02 05:09:24 EST ---

(null) in here is the 'path' of the file. Yes it could have not been printed at all as a proper fix.

Above there are two type of operations:

inode ops (Access, opendir etc), where there is a log of 'gfid' which can help people to debug. (Also, these calls may be also path less, gfid only fops)..

in entry ops: (mkdir and mknod), the gfid of parent, and basename is logged to help debugging.