[Bugs] [Bug 1365468] New: [Perf/Stress] : "Stale File Handle" during smallfile listing on Ganesha v4 mounts.

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1365468

            Bug ID: 1365468
           Summary: [Perf/Stress] : "Stale File Handle" during smallfile
                    listing on Ganesha v4 mounts.
           Product: GlusterFS
           Version: 3.8.1
         Component: ganesha-nfs
          Severity: high
          Assignee: bugs at gluster.org
          Reporter: asoman at redhat.com
                CC: bugs at gluster.org



Description of problem:
----------------------

Recursive ls from Ganesha v4 mount point results in "Stale File Handle".

Version-Release number of selected component (if applicable):
-------------------------------------------------------------


glusterfs-server-3.8.1-0.4.git56fcf39.el7rhgs.x86_64
nfs-ganesha-gluster-2.4-0.dev.26.el7rhgs.x86_64
pacemaker-libs-1.1.13-10.el7.x86_64
pcs-0.9.143-15.el7.x86_64


How reproducible:
-----------------

2/2

Steps to Reproduce:
-------------------

1. Run smallfile creates : python /small-files/smallfile/smallfile_cli.py
--operation create --threads 8  --file-size 64 --files 10000 --top
/gluster-mount --host-set "`echo $CLIENT | tr ' ' ','`"

2. Run smallfile ls : python /small-files/smallfile/smallfile_cli.py
--operation ls-l--threads 8  --file-size 64 --files 10000 --top /gluster-mount
--host-set "`echo $CLIENT | tr ' ' ','`"

3. Try ls -R manually as well from mount point.

Actual results:
--------------

"stale File Handle" on a couple of files/dirs :

<snip>

drwxr-xr-x 2 root root  4096 Aug  9 05:45 d_005
drwxr-xr-x 2 root root  4096 Aug  9 05:45 d_006
drwxr-xr-x 2 root root  4096 Aug  9 05:45 d_007
drwxr-xr-x 2 root root  4096 Aug  9 05:45 d_008
drwxr-xr-x 2 root root  4096 Aug  9 05:45 d_009
ls: cannot open directory
./file_srcdir/gqac006.sbu.lab.eng.bos.redhat.com/thrd_00/d_004/d_000: Stale
file handle
ls: cannot open directory
./file_srcdir/gqac006.sbu.lab.eng.bos.redhat.com/thrd_00/d_004/d_001: Stale
file handle
ls: cannot open directory
./file_srcdir/gqac006.sbu.lab.eng.bos.redhat.com/thrd_00/d_004/d_002: Stale
file handle
ls: cannot open directory
./file_srcdir/gqac006.sbu.lab.eng.bos.redhat.com/thrd_00/d_004/d_003: Stale
file handle
ls: cannot open directory
./file_srcdir/gqac006.sbu.lab.eng.bos.redhat.com/thrd_00/d_004/d_004: Stale
file handle

</snip>

Expected results:
------------------

No stale file handle.Listing should be successful.

Additional info:
---------------

Volume Name: testvol
Type: Distributed-Replicate
Volume ID: 3ee2c046-939b-4915-908b-859bfcad0840
Status: Started
Number of Bricks: 2 x 2 = 4
Transport-type: tcp
Bricks:
Brick1: gqas001.sbu.lab.eng.bos.redhat.com:/bricks/testvol_brick0
Brick2: gqas014.sbu.lab.eng.bos.redhat.com:/bricks/testvol_brick1
Brick3: gqas015.sbu.lab.eng.bos.redhat.com:/bricks/testvol_brick2
Brick4: gqas016.sbu.lab.eng.bos.redhat.com:/bricks/testvol_brick3
Options Reconfigured:
client.event-threads: 4
server.event-threads: 4
cluster.lookup-optimize: on
ganesha.enable: on
features.cache-invalidation: on
nfs.disable: on
performance.readdir-ahead: on
performance.stat-prefetch: off
server.allow-insecure: on
nfs-ganesha: enable
cluster.enable-shared-storage: enable

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