[Gluster-devel] how to distinguish whether the current xlator is used in the client or the server?

[Vijay Bellur]

On 12/16/2013 04:20 PM, Pranith Kumar Karampuri wrote:
> hi Mingfan Lu,
>      xlators are not supposed to know which part of the stack they belong to. If you think the functionality needs to be different when it is in
>  server vs client side. Would writing two different xlators one for client side and the other for server side make sense?

You can also consider having optional behavior and enable the 
appropriate option in the client/server volume files for the xlator to 
behave differently. For e.g. the compression translator is loaded in 
both client and server stacks, but it performs 
compression/de-compression for the appropriate fops by looking at option 
'mode'.

-Vijay


>
> Pranith.
> ----- Original Message -----
>> From: "Mingfan Lu" <mingfan.lu at gmail.com>
>> To: gluster-devel at nongnu.org
>> Sent: Monday, December 16, 2013 2:55:24 PM
>> Subject: [Gluster-devel] how to distinguish whether the current xlator is used in the client or the server?
>>
>> When I write a xlator for glusterfs, the xlator could be used for client and
>> server. but when being used in server and client, the behavior of the xlator
>> could be some-what differrent. How could I know whether the xlator is used
>> in glusterfs or glusterfsd when I developing the xlator? then I could tune
>> the code path for client and server.
>>
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>
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