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

[Alex Crow]

> 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
>
Here you go:

Locked files:
Pid          Uid        DenyMode   Access      R/W Oplock           
SharePath   Name   Time
--------------------------------------------------------------------------------------------------
1:11489      1046       DENY_WRITE 0x12019f    RDWR NONE             
/mfs/samba/drive_v   jmi/Corporate Accounting/ISL Ltd 
Accounts/2016/1609/201609 213_ ISL Balance sheet variance analysis.xls   
Fri Oct 21 17:27:22 2016

0:9375       1046       DENY_WRITE 0x12019f    RDWR NONE             
/mfs/samba/drive_v   jmi/Corporate Accounting/ISL Ltd 
Accounts/2016/1609/201609 213_ ISL Balance sheet variance analysis.xls   
Fri Oct 21 17:26:38 2016

This is what I'm seeing. I could open the same file r/w off two 
different hosts. Both seem to have a DENY_WRITE lock - which is surely 
supposed to be impossible?

This is on 4.4.5 with only two hosts operational.

Alex


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