Yes, this one is silly rename,
>>> rm: cannot remove ‘/mnt/nfs/ltp-JEYAuky2dz/.nfsaa46457a6a72f8ea000014f5’: Device or resource busy
But, the other one isn't client's silly rename,
>>>> rm: cannot remove ‘/mnt/nfs/ltp-JEYAuky2dz/rmderQsjV’: Directory not empty
Also, the second one often appears when testing ganesha nfs by ltp.
I try to get an tcpdump, I found, when ls under the nfs client directory,
the glusterfs client doesn't send readdir to glusterfs server, so that,
the nfs client gets an empty directory information, but it's empty underlying.
ls at some other directory,
the glusterfs client send readdir to glusterfs server, nfs client gets right dirctory
information as the underlying.
So, I guess maybe there are some problems in MDCHANE or glusterfs client?
]# cat /var/lib/glusterd/vols/gvtest/trusted-gvtest.tcp-fuse.vol
volume gvtest-client-0
type protocol/client
option send-gids true
option password d80765c8-95ae-46ed-912a-0c98fdd1e7cd
option username 7bc6276f-245c-477a-99d0-7ead4fcb2968
option transport.address-family inet
option transport-type tcp
option remote-subvolume /gluster-test/gvtest
option remote-host 192.168.9.111
option ping-timeout 42
end-volume
volume gvtest-client-1
type protocol/client
option send-gids true
option password d80765c8-95ae-46ed-912a-0c98fdd1e7cd
option username 7bc6276f-245c-477a-99d0-7ead4fcb2968
option transport.address-family inet
option transport-type tcp
option remote-subvolume /gluster-test/gvtest
option remote-host 192.168.9.111
option ping-timeout 42
end-volume
volume gvtest-dht
type cluster/distribute
option lock-migration off
subvolumes gvtest-client-0 gvtest-client-1
end-volume
volume gvtest
type debug/io-stats
option count-fop-hits off
option latency-measurement off
option log-level INFO
subvolumes gvtest-dht
end-volume
thanks,
Kinglong Mee
On 4/13/2017 10:17, Malahal Naineni wrote:
> 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@xxxxxxxxx> 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@xxxxxxxxxxx> 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@xxxxxxxxxxx <mailto:mijinlong@xxxxxxxxxxx>> 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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>>>> _______________________________________________
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>>>>
>>>>
>>>>
>>>> ------------------------------------------------------------------------------
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>>>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>>>>
>>>>
>>>>
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>
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