[Gluster-devel] [Nfs-ganesha-devel] Device or resource busy when runltp cleanup test-files

[Malahal Naineni]

Sorry, I missed your note below. This is definitely due to an NFS
client's silly rename. All ".nfs<random>" are due to silly rename
implementation in NFS client. You might want to read about it.

>> rm: cannot remove ‘/mnt/nfs/ltp-JEYAuky2dz/.nfsaa46457a6a72f8ea000014f5’: Device or resource busy

On Thu, Apr 13, 2017 at 7:37 AM, Malahal Naineni <malahal at gmail.com> wrote:
> What are the file names under the directory? What does "ls -la" show
> both at the client and at the server in that directory?
>
> On Thu, Apr 13, 2017 at 5:13 AM, Kinglong Mee <mijinlong at open-fs.com> wrote:
>> There are some files under "rmderQsjV" (that's not a silly rename dir) really
>> at underlying filesystem, but the nfs client shows empty.
>>
>> Are there some problems in MDCACHE or cache timeouts?
>>
>> On 4/12/2017 22:48, Malahal Naineni wrote:
>>> Could be due to NFS client silly rename.
>>>
>>> On Apr 12, 2017 8:06 PM, "Kinglong Mee" <mijinlong at open-fs.com <mailto:mijinlong at open-fs.com>> wrote:
>>>
>>>     When I testing ganesha nfs bases on glusterfs, the runltp always warning as,
>>>
>>>     rm: cannot remove ‘/mnt/nfs/ltp-JEYAuky2dz/.nfsaa46457a6a72f8ea000014f5’: Device or resource busy
>>>     rm: cannot remove ‘/mnt/nfs/ltp-JEYAuky2dz/rmderQsjV’: Directory not empty
>>>
>>>     and, "rmderQsjV" also contains files at the back-end, and nfs client shows empty.
>>>
>>>     My test environments are,
>>>     Centos 7 (kernel-3.10.0-514.10.2.el7.x86_64),
>>>     Glusterfs (glusterfs-3.8.10-1.el7.x86_64),
>>>     NFS-Ganesha (nfs-ganesha-2.3.3-1.el7.x86_64).
>>>
>>>     #cat /etc/ganesha/ganesha.conf
>>>     EXPORT
>>>     {
>>>      SecType = "sys";
>>>      Pseudo = "/gvtest";
>>>      Squash = "No_Root_Squash";
>>>      Access_Type = "RW";
>>>      Path = "/gvtest";
>>>      Export_Id = 1;
>>>     FSAL {
>>>         Name = "GLUSTER";
>>>         Hostname = "localhost";
>>>         Volume = "gvtest";
>>>         Volpath = "/";
>>>      }
>>>     }
>>>
>>>     # gluster volume info
>>>
>>>     Volume Name: gvtest
>>>     Type: Distribute
>>>     Volume ID: 65d20de1-16cd-4ae8-a860-254b3d6c56d0
>>>     Status: Started
>>>     Snapshot Count: 0
>>>     Number of Bricks: 2
>>>     Transport-type: tcp
>>>     Bricks:
>>>     Brick1: 192.168.9.111:/gluster-test/gvtest
>>>     Brick2: 192.168.9.112:/gluster-test/gvtest
>>>     Options Reconfigured:
>>>     nfs.disable: on
>>>     performance.readdir-ahead: off
>>>     transport.address-family: inet
>>>     performance.write-behind: off
>>>     performance.read-ahead: off
>>>     performance.io-cache: off
>>>     performance.quick-read: off
>>>     performance.open-behind: off
>>>     performance.stat-prefetch: off
>>>
>>>
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