Hi Daniel,

Thank you for your reply. I've also tried with the client_id but it also has the same value for 2 different processes. So if the client_id and the opaque always have the same value (for 2 different processes), how can we distinguish the client?

I've tried with this field 

so_owner.so_nfs4_owner.so_clientid

Thank you.
Viet

On Mon, Apr 30, 2018 at 2:38 PM, Daniel Gryniewicz <dang@redhat.com> wrote:
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Hi.

The client program ID in a lock owner is an opaque.  That is, it's not defined in the spec, and the server can't use it for anything other than a byte string.  The concatenation of the client-ID and the opaque part of the lock owner is unique, but the opaque part of the lock owner itself is not.

That value only has meaning to the client.

Daniel

On 04/30/2018 08:18 AM, Tuan Viet Nguyen wrote:
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Hello,

While trying to get more information related to the lock owner, I'm trying to get the client program id and realize that it always takes the same value (easy to do with a test program forking another process, parent lock a file range then the child locks another range). Is it something similar to the client process id that is stored in the client record structure? or any other suggestions?

Thank you


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