[Bugs] [Bug 1228729] New: nfs-ganesha: rmdir logs "remote operation failed: Stale file handle" even though the operation is successful

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1228729

            Bug ID: 1228729
           Summary: nfs-ganesha: rmdir logs "remote operation failed:
                    Stale file handle" even though the operation is
                    successful
           Product: GlusterFS
           Version: 3.7.0
         Component: protocol
          Severity: medium
          Priority: high
          Assignee: ndevos at redhat.com
          Reporter: ndevos at redhat.com
                CC: bugs at gluster.org, gluster-bugs at redhat.com
            Blocks: 1224215



+++ This bug was initially created as a clone of Bug #1224215 +++

Description of problem:
Even though the operation like rmdir is successfully deleting the directory in
consideration the gfapi.log gets updated by logs such as 
"remote operation failed: Stale file handle"

This is a spurious log, doesn't seem to be giving any meaning to any one.

Version-Release number of selected component (if applicable):
glusterfs-3.7.0-2.el6rhs.x86_64
nfs-ganesha-2.2.0-0.el6.x86_64

How reproducible:
always

Steps to Reproduce:
1. create a volume of type 6x2, start it
2. bring up nfs-ganesha, after completing the pre-requisites
3. mount the volume with vers=4 or vers=3
4. create a dir and rmdir the same dir

Actual results:
step4 is successful
but gfapi.log reports
[2015-05-22 10:37:52.314210] W [client-rpc-fops.c:506:client3_3_stat_cbk]
0-vol2-client-1: remote operation failed: Stale file handle
[2015-05-22 10:37:52.314461] W [client-rpc-fops.c:506:client3_3_stat_cbk]
0-vol2-client-3: remote operation failed: Stale file handle
[2015-05-22 10:37:52.314606] W [client-rpc-fops.c:506:client3_3_stat_cbk]
0-vol2-client-11: remote operation failed: Stale file handle
[2015-05-22 10:37:52.314761] W [client-rpc-fops.c:506:client3_3_stat_cbk]
0-vol2-client-7: remote operation failed: Stale file handle
[2015-05-22 10:37:52.314860] W [client-rpc-fops.c:506:client3_3_stat_cbk]
0-vol2-client-9: remote operation failed: Stale file handle
[2015-05-22 10:37:52.314978] W [client-rpc-fops.c:506:client3_3_stat_cbk]
0-vol2-client-5: remote operation failed: Stale file handle


^C


Expected results:
logs should be meaning ful, it should match the operation that it is doing,
present logs give a wrong impression of the system

Additional info:


--- Additional comment from Niels de Vos on 2015-06-05 14:27:31 CEST ---

Need to investigate if logging at Warning is suitable, maybe this should be
marked as Debug instead.

Ganesha does remove first, and then stats the file-handle to update the
attributes (like hard-link count). The stale file handle is expected in this
case.


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1224215
[Bug 1224215] nfs-ganesha: rmdir logs "remote operation failed: Stale file
handle" even though the operation is successful
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