[Samba] CTDB and locking issues in 4.4.6 (Classic domain)

[Alex Crow]

On 21/10/16 12:07, Alex Crow via samba wrote:
> On 21/10/16 10:52, Ralph Böhme wrote:
>> On Fri, Oct 21, 2016 at 10:30:46AM +0100, Alex Crow via samba wrote:
>>> Interestingly I have a setup here for testing for rollout of S4 AD. 
>>> The file
>>> servers are in an AD domain and are running Sernet 4.4.5, so one 
>>> version
>>> older than production.
>> maybe it's related to bug 12005 that was fixed in 4.4.6? Can you test
>> with attached patch that reverts the change?
>>
>> Cheerio!
>> -slow
>
> Hi Ralph,
>
> Some more tests I've done indicate that locking is only working 
> between 2 of my 6 VIPs (one per host). If I open a file on either of 
> these two "working" hosts, it's locked on the other working one, but 
> not on any others. Opening a file on any of the "non-working" hosts 
> means the file is not locked anywhere else.
>
> On my test setup with only two nodes it seems to work normally with 
> both 4.4.5 and 4.4.6.
>
> All hosts have the same smb.conf.
>
> Cheers
>
> Alex

I've now managed to replicate the error on my test setup. I added a 
third host and all hell broke loose - no locking at all when opening 
Excel files apart from same-host. It seemed fine with two.

I then downgraded to 4.4.5 and the problem persisted. So it cannot be a 
regression from that patch.

Regards,

Alex

--
This message is intended only for the addressee and may contain
confidential information. Unless you are that person, you may not
disclose its contents or use it in any way and are requested to delete
the message along with any attachments and notify us immediately.
This email is not intended to, nor should it be taken to, constitute advice.
The information provided is correct to our knowledge & belief and must not
be used as a substitute for obtaining tax, regulatory, investment, legal or
any other appropriate advice.

"Transact" is operated by Integrated Financial Arrangements Ltd.
29 Clement's Lane, London EC4N 7AE. Tel: (020) 7608 4900 Fax: (020) 7608 5300.
(Registered office: as above; Registered in England and Wales under
number: 3727592). Authorised and regulated by the Financial Conduct
Authority (entered on the Financial Services Register; no. 190856).