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

[Alex Crow]

On 23/10/16 10:00, Ralph Böhme wrote:
> Alex,
>
> On Sat, Oct 22, 2016 at 07:30:01PM +0100, Alex Crow wrote:
>> I applied the patch to a new build of Sernet 4.4.6 SRPM. I could still
>> open the file from both hosts, and in fact this time I could actually
>> open it on the same host without any problems:
> I don't see where you're opening the file twice from one smbclient
> below. Am I missing something?

Not the same client session, but two sessions connecting to the same host.

>
> And then there's no need to use an xls file, simply create an empty
> file in the root of the share with `touch file` and use that.

Yes, it's just I had been testing with that file the whole time so I had
it in my clipboard...

>
>> host 1:
>>
>> smbclient -U ajc //172.31.0.120/ifa_v
>>
>> ...
>>
>> smb: \jmi\Corporate Accounting\ISL Ltd Accounts\2016\1609\> open "201609
>> 213_ ISL Balance sheet variance analysis.xls"
>> open file \jmi\Corporate Accounting\ISL Ltd Accounts\2016\1609\201609
>> 213_ ISL Balance sheet variance analysis.xls: for read/write fnum 56287
>>
>> host 2:
>>
>> smbclient -U ajc //172.31.0.120/ifa_v
>>
>> ...
>>
>> smb: \jmi\Corporate Accounting\ISL Ltd Accounts\2016\1609\> open "201609
>> 213_ ISL Balance sheet variance analysis.xls"
>> open file \jmi\Corporate Accounting\ISL Ltd Accounts\2016\1609\201609
>> 213_ ISL Balance sheet variance analysis.xls: for read/write fnum 17669
>>
>> But this:
>>
>> # smbstatus -L
>> Locked files:
>> Pid          Uid        DenyMode   Access      R/W       
>> Oplock           SharePath   Name   Time
>> --------------------------------------------------------------------------------------------------
>> 1:19650      1046       DENY_NONE  0x83        RDWR      
>> NONE             /mfs/samba/drive_v   jmi/Corporate Accounting/ISL Ltd
>> Accounts/2016/1609/201609 213_ ISL Balance sheet variance analysis.xls  
>> Sat Oct 22 19:26:06 2016
>> 0:13503      1046       DENY_NONE  0x83        RDWR      
>> NONE             /mfs/samba/drive_v   jmi/Corporate Accounting/ISL Ltd
>> Accounts/2016/1609/201609 213_ ISL Balance sheet variance analysis.xls  
>> Sat Oct 22 18:58:06 2016
> Is this from an open with the patched smbclient or from Excel?

smbclient.

>
>> Is odd as the patch was applied fine during the RPM build process.
>>
>> Is there something I need to do when building from sRPMs to make
>> this stick?
> You could double check in ~/rpmbuild/BUILD/ if the patch was really
> applied. If it was, an smbclient open should result in DENY_ALL
> denymode in smbstatus -L, eg:
>
> $ ./bin/smbclient -Uslow%x -msmb3 //10.10.11.100/test
> Domain=[SLOWSERVER] OS=[] Server=[]
> smb: \> open test
> open file \test: for read/write fnum 1
>
> $ sudo ./bin/smbstatus -L
> Locked files:
> Pid          Uid        DenyMode   Access      R/W        Oplock           SharePath   Name   Time
> --------------------------------------------------------------------------------------------------
> 12757        1000       DENY_ALL   0x3         RDWR       NONE             /shares/test   test   Sun Oct 23 10:39:25 2016
>
> Cheerio!
> -slow

Does look like it didn't get applied. Odd, as it was in the specfile and
the SOURCES dir and the build finished. I'll check,

Cheers

Alex

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