[Gluster-devel] [NFS-ganesha] unlink file remains in ./glusterfs/unlinks after delete file

[Soumya Koduri]

FYI - "http://review.gluster.org/#/c/14840 " contains the fix for 3.7 
branch.

Thanks,
Soumya

On 07/01/2016 11:38 AM, Soumya Koduri wrote:
> Hi,
>
> On 06/30/2016 11:56 AM, 梁正和 wrote:
>> Hi,
>>
>> I'm trying to export gluster-volume by nfs-ganesha.
>>
>> After create --> Some I/O --> delete file from nfs mount point.
>> The file has been moved to ./glusterfs/unlinkls.
>
> There was an fd leak when a file is created using gfapi handleops (which
> NFS-Ganesha uses) and FWIU, if there is an open fd, glusterfs-server
> moves the file being removed to ".glusterfs/unlink" folder unless its
> inode entry gets purged when the inode table which it maintains gets
> full or the brick process is restarted.
>
> The fix for "glfd" leak is already merged in master -
> "http://review.gluster.org/#/c/14532/"
>
> Will backport this patch to 3.7 branch. If 3.7.13 merge window gets
> closed, the fix shall be available in 3.7.14. Till then to get past this
> issue, request to restart brick process.
>
> Thanks,
> Soumya
>
>>
>> Excepted result: no files in the unlink folder.
>>
>> Environment: single gluster server with
>>
>>     nfs-ganesha version: 2.2.0-6
>>     glusterfs version: 3.7.12
>>
>> # Gluster volume info
>>
>>     Volume Name: for_nfs
>>     Type: Distribute
>>     Volume ID: 5db07be3-0f09-413e-a857-33982c1a41e7
>>     Status: Started
>>     Number of Bricks: 1
>>     Transport-type: tcp
>>     Bricks:
>>     Brick1: server1:/export/d1/fs
>>     Options Reconfigured:
>>     performance.readdir-ahead: on
>>
>>
>> # ganesha_mgr show_exports
>>
>>     Exports:
>>       Id, path,    nfsv3, mnt, nlm4, rquota,nfsv40, nfsv41, nfsv42,
>> 9p, last
>>      2,  /for_nfs,  0,  0,  0,  0,  1,  0,  0,  0, Thu Jun 30 22:08:36
>>     2016, 346097480 nsecs
>>      0,  /,  0,  0,  0,  0,  0,  0,  0,  0, Thu Jun 30 22:00:21 2016,
>>     516560773 nsecs
>>
>>
>>
>> Steps to Reproduce:
>> 1. Create a gluster volume and share threoug nfs-ganesha
>> 2. On the nfs mount point, do some file operation (ex echo foor >> bar)
>> 3. Delete bar from the nfs mount point
>>
>> Result: file bar has been move to unlink folder
>>
>>     # pwd
>>
>>         /export/d1/fs/.glusterfs/unlink
>>
>>     # ls
>>
>>         cef0380d-8300-44ee-8e78-9e773938c935
>>
>>
>>     # cat cef0380d-8300-44ee-8e78-9e773938c935
>>
>>         foo
>>
>> Thanks,
>>
>> --
>> 梁正和 Jheng-He Liang
>> otirafuu at gmail.com <mailto:navys23 at gmail.com>
>>
>>
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>> Gluster-devel at gluster.org
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>>
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