Re: HA NFS

["Marc Eshel" <eshel@us.ibm.com>]

Thanks for the pointer Steve, I am not sure how much of the changes 
considered RedHat and how much is Linux kernel changes so if another 
mailing list is more appropriate please let me know. I now see on RHEL7.0 
that /var/lib/nfs/nfsdcltrack/main.sqlite is updated as I open a file from 
an NFS client, but going to RHEL7.2 that file is created but not updated 
with a new client open. Did something change in this area between 7.0 and 
7.2 ?
Marc.



From:   Steve Dickson <SteveD@redhat.com>
To:     Marc Eshel/Almaden/IBM@IBMUS
Cc:     linux-nfs@vger.kernel.org, Tomer Perry <TOMP@il.ibm.com>
Date:   07/05/2016 08:08 AM
Subject:        Re: HA NFS





On 07/04/2016 07:53 PM, Marc Eshel wrote:
> Hi Steve,
> I did not pay attention for a while and now I see that since RHEL7.0 
there 
> a major changes in NFSv4 recovery for a signal machine and for cluster 
> file system. Is there any write up on the changes like the use of 
> /var/lib/nfs/nfsdcltrack/main.sqlite, I see it being used in 7.0 but not 

> in 7.2. Any information would be appreciated.

That file is still being used... but there were some changes.

In RHEL 7.2 this was added for bz 1234598
commit c41a3d0a17baa61a07d48d8536e99908d765de9b
Author: Jeff Layton <jlayton@primarydata.com>
Date:   Fri Sep 19 11:07:31 2014 -0400

    nfsdcltrack: fetch NFSDCLTRACK_GRACE_START out of environment


In RHEL 7.3 there will be this for bz 1285097
commit d479ad3adb0671c48d6fbf3e36bd52a31159c413
Author: Jeff Layton <jlayton@primarydata.com>
Date:   Fri Sep 19 11:03:45 2014 -0400

    nfsdcltrack: update schema to v2

I hope this helps... 

steved.