Re: [Gluster-devel] glusterfs file locking

[James]

this type of snapshotting is coming soon in 3.5 with lvm support afaict.
http://www.gluster.org/community/documentation/index.php/Features/File_Snapshot

On Mon, Dec 2, 2013 at 11:32 PM, kane <address@hidden> wrote:
> Hi Raghavendra,
>
>         What I want to do is to take volume snapshots with btrfs, so I need 
> the volume locked.
> When snapshot is taking, all handles(IO,  gluster cli) except snap hung on.
>
> As I know, the xlator lock does not lock the whole volume bricks, but only a 
> range of a file in bricks.
>
> Any good advice?
>
> Thanks,
> Kane
>
> 在 2013年12月3日，下午12:06，Raghavendra Gowdappa <address@hidden> 写道：
>
>> Hi Kane,
>>
>> You don't have to add the xlator explicitly through cli. The xlator is 
>> configured by default on bricks when you create a volume.
>>
>> regards,
>> Raghavendra.
>>
>> ----- Original Message -----
>>> From: "kane" <address@hidden>
>>> To: address@hidden
>>> Cc: address@hidden
>>> Sent: Tuesday, December 3, 2013 8:41:30 AM
>>> Subject: [Gluster-devel] glusterfs file locking
>>>
>>> Hi, Rohit:
>>>
>>>      I have googled the issue you mailed last year as below:
>>> ======
>>> Does Gluster provide POSIX compatible file locking transparently with
>>> multiple clients simultaneously trying to lock files on a Gluster share
>>> with the native Gluster client?
>>>
>>> A lot of the code in our application framework relies on file locking for
>>> synchronization. I was running across some errors, and wanted to rule out
>>> file locking issues – hence this question.
>>>
>>> The gluster documentation mentions a features/posix-locks translator that
>>> should be used for distributed file level locking. This translator can be
>>> added using the config files as shown in the example at
>>>
>>> http://gluster.org/community/documentation/index.php/Translators/features/locks.
>>>
>>> However, this method of using config files doesn't seem to be available in
>>> newer versions of Gluster, and I couldn't find an equivalent way of using
>>> this translator using the command line.  Can someone confirm if I need to
>>> use this translator, and how I could enable it with Gluster 3.3?
>>> ======
>>>
>>> so as I meet this file locking usage in 3.3 too, I want to ask you what did
>>> you
>>> deal with the lock issue at last, did the xlator lock useful?
>>>
>>> Thanks,
>>> Kane
>>>
>>> _______________________________________________
>>> Gluster-devel mailing list
>>> address@hidden
>>> https://lists.nongnu.org/mailman/listinfo/gluster-devel
>>>
>
>
>
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