samba - Jul 2016 - Winbind process stuck at 100% after changing use_mmap to no

On 05/07/16 20:49, Alex Crow wrote:
> FYI, by "it did, completely" I meant it failed completely.
>
> Even if the only file we have to have on the cluster FS (which now 
> seems to be down solely to the ctdb lock file), I'm still worried what 
> these failures mean:
>
> 1) does the -rw (without -m) test suggest any problems with the 
> MooseFS FS I'm serving files to users from?
> 2) does the mmap test failure mean I should not even have my CTDB lock 
> file on MooseFS?
> 3) Do the inconsistent reports from a ping_pong -rw test show there is 
> a major problem with MooseFS as the underlying FS for Samba exports 
> and something needs to be done with the underlying FS?
>
> I'm a paying licensee of MooseFS Pro, so I hope you can understand my 
> wishes to get this problem sorted. If contracting some of the Sernet 
> chaps is required, we've done it before and might be prepared to do so 
> in this case.
>
>
ROFL ROFL

Do you know who Volker is ???

Please listen to him, do what he advises and don't bother contacting 
Sernet, because you already have.

Rowland

On 05/07/16 21:00, Rowland penny wrote:
> On 05/07/16 20:49, Alex Crow wrote:
>> FYI, by "it did, completely" I meant it failed completely.
>>
>> Even if the only file we have to have on the cluster FS (which now 
>> seems to be down solely to the ctdb lock file), I'm still worried 
>> what these failures mean:
>>
>> 1) does the -rw (without -m) test suggest any problems with the 
>> MooseFS FS I'm serving files to users from?
>> 2) does the mmap test failure mean I should not even have my CTDB 
>> lock file on MooseFS?
>> 3) Do the inconsistent reports from a ping_pong -rw test show there 
>> is a major problem with MooseFS as the underlying FS for Samba 
>> exports and something needs to be done with the underlying FS?
>>
>> I'm a paying licensee of MooseFS Pro, so I hope you can understand
my
>> wishes to get this problem sorted. If contracting some of the Sernet 
>> chaps is required, we've done it before and might be prepared to do
>> so in this case.
>>
>>
>
> ROFL ROFL
>
> Do you know who Volker is ???
>
> Please listen to him, do what he advises and don't bother contacting 
> Sernet, because you already have.
>
> Rowland
>
I know who Volker is and I've met Jeremy Allison may years ago at the 
now defunct London Linux expo..

What am I supposed to be listening to? I'm just suggesting some way I 
can contribute to MooseFS by getting it to work consistently with 
Samba/CTDB. Volker suggests just dropping the FS which is not a very 
good option for our organisation right now. The wiki is unclear and 
contradictory, and I don't have the facts to update it without risking 
it being equally broken afterwards, and misleading others, so that's why 
I'm trying to provide clear information, performing tests, reporting 
back, and asking for advice to find out how it really *does* work.

I feel a little offended by the tone of this message, as I've been on 
this list for over 15 years and feel I've helped out a lot of people 
with other queries I've already experienced.

I am prepared to pay Volker via Sernet as this is of great importance to 
us and will help develop another open source product. Is that so hard to 
understand?

Best regards

Alex

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On 05/07/16 21:16, Alex Crow wrote:
>
>
> On 05/07/16 21:00, Rowland penny wrote:
>> On 05/07/16 20:49, Alex Crow wrote:
>>> FYI, by "it did, completely" I meant it failed
completely.
>>>
>>> Even if the only file we have to have on the cluster FS (which now 
>>> seems to be down solely to the ctdb lock file), I'm still
worried
>>> what these failures mean:
>>>
>>> 1) does the -rw (without -m) test suggest any problems with the 
>>> MooseFS FS I'm serving files to users from?
>>> 2) does the mmap test failure mean I should not even have my CTDB 
>>> lock file on MooseFS?
>>> 3) Do the inconsistent reports from a ping_pong -rw test show there
>>> is a major problem with MooseFS as the underlying FS for Samba 
>>> exports and something needs to be done with the underlying FS?
>>>
>>> I'm a paying licensee of MooseFS Pro, so I hope you can
understand
>>> my wishes to get this problem sorted. If contracting some of the 
>>> Sernet chaps is required, we've done it before and might be
prepared
>>> to do so in this case.
>>>
>>>
>>
>> ROFL ROFL
>>
>> Do you know who Volker is ???
>>
>> Please listen to him, do what he advises and don't bother
contacting
>> Sernet, because you already have.
>>
>> Rowland
>>
>
> I know who Volker is and I've met Jeremy Allison may years ago at the 
> now defunct London Linux expo..
>
> What am I supposed to be listening to? I'm just suggesting some way I 
> can contribute to MooseFS by getting it to work consistently with 
> Samba/CTDB. Volker suggests just dropping the FS which is not a very 
> good option for our organisation right now. The wiki is unclear and 
> contradictory, and I don't have the facts to update it without risking 
> it being equally broken afterwards, and misleading others, so that's 
> why I'm trying to provide clear information, performing tests, 
> reporting back, and asking for advice to find out how it really *does* 
> work.
>
> I feel a little offended by the tone of this message, as I've been on 
> this list for over 15 years and feel I've helped out a lot of people 
> with other queries I've already experienced.
Sorry if I offended you, but Volker was telling you what you needed to 
do. You were coming over as if you didn't want to do what you were being 
advised to do.
>
> I am prepared to pay Volker via Sernet as this is of great importance 
> to us and will help develop another open source product. Is that so 
> hard to understand?
>
When you put it that way, no, but the way to put it previously, yes.

how should I put this?
MooseFS sounds like it isn't useful with CTDB, you have paid for 
MooseFS, it doesn't work, so you are now blaming Samba. You need to do 
what Volker says and get MooseFS to work with mmap.

Rowland