Ubuntu 12.04.1 + xfs + syncfs is still not our friend

Ubuntu 12.04.1 + xfs + syncfs is still not our friend

[Oliver Francke]

Hi *,

anybody out there who's in Ubuntu 12.04.1/ in connection with libc + xfs 
+ syncfs?

We bit the bullet and reinstalled two new nodes from debian to precise 
in favour of possible performance increase?!

*sigh*, still getting:

2012-11-06 17:05:51.863921 7f5cc52e3780  0 filestore(/data/osd6-3) mount 
syncfs(2) syscall not support by glibc
2012-11-06 17:05:51.863925 7f5cc52e3780  0 filestore(/data/osd6-3) mount 
no syncfs(2), must use sync(2).

as a show-stopper.

That's with 3.2.* and 3.6.6 kernel. Should be new enough. And 
ceph-0.48.2 ( eu.ceph.com mirror was installing 0.48.1.. though *ops* ;) )

But both should be capable of this system-call?!

We've been so very near... but now clueless, please sched some light in 8-)

( I hope this is not a very obvious human RTFM error ;) )

And so I'm writing, should one enable directio + aio, as we're having 
the journals on a SSD-partition?

Kind regards,

Oliver.

-- 

Oliver Francke

filoo GmbH
Moltkestraße 25a
33330 Gütersloh
HRB4355 AG Gütersloh

Geschäftsführer: S.Grewing | J.Rehpöhler | C.Kunz

Folgen Sie uns auf Twitter: http://twitter.com/filoogmbh

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Re: Ubuntu 12.04.1 + xfs + syncfs is still not our friend

[Oliver Francke]

In answer to myself,

On 11/06/2012 05:14 PM, Oliver Francke wrote:
> Hi *,
>
> anybody out there who's in Ubuntu 12.04.1/ in connection with libc + 
> xfs + syncfs?

ii  libc6                            2.15-0ubuntu10.3

but:
apt-cache show...
.
.
Provides: glibc-2.13-1
.
.

playing with numbers, I think. But make clear, why syncfs-call is not in :-\

... search continues...

>
> We bit the bullet and reinstalled two new nodes from debian to precise 
> in favour of possible performance increase?!
>
> *sigh*, still getting:
>
> 2012-11-06 17:05:51.863921 7f5cc52e3780  0 filestore(/data/osd6-3) 
> mount syncfs(2) syscall not support by glibc
> 2012-11-06 17:05:51.863925 7f5cc52e3780  0 filestore(/data/osd6-3) 
> mount no syncfs(2), must use sync(2).
>
> as a show-stopper.
>
> That's with 3.2.* and 3.6.6 kernel. Should be new enough. And 
> ceph-0.48.2 ( eu.ceph.com mirror was installing 0.48.1.. though *ops* 
> ;) )
>
> But both should be capable of this system-call?!
>
> We've been so very near... but now clueless, please sched some light 
> in 8-)
>
> ( I hope this is not a very obvious human RTFM error ;) )
>
> And so I'm writing, should one enable directio + aio, as we're having 
> the journals on a SSD-partition?
>
> Kind regards,
>
> Oliver.
>


-- 

Oliver Francke

filoo GmbH
Moltkestraße 25a
33330 Gütersloh
HRB4355 AG Gütersloh

Geschäftsführer: S.Grewing | J.Rehpöhler | C.Kunz

Folgen Sie uns auf Twitter: http://twitter.com/filoogmbh

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Re: Ubuntu 12.04.1 + xfs + syncfs is still not our friend

[Alexandre DERUMIER]

syncfs is only available since glibc 2.14 (and kernel 2.6.39)

----- Mail original ----- 

De: "Oliver Francke" <Oliver.Francke@filoo.de> 
À: ceph-devel@vger.kernel.org 
Envoyé: Mardi 6 Novembre 2012 17:31:29 
Objet: Re: Ubuntu 12.04.1 + xfs + syncfs is still not our friend 

In answer to myself, 

On 11/06/2012 05:14 PM, Oliver Francke wrote: 
> Hi *, 
> 
> anybody out there who's in Ubuntu 12.04.1/ in connection with libc + 
> xfs + syncfs? 

ii libc6 2.15-0ubuntu10.3 

but: 
apt-cache show... 
. 
. 
Provides: glibc-2.13-1 
. 
. 

playing with numbers, I think. But make clear, why syncfs-call is not in :-\ 

... search continues... 

> 
> We bit the bullet and reinstalled two new nodes from debian to precise 
> in favour of possible performance increase?! 
> 
> *sigh*, still getting: 
> 
> 2012-11-06 17:05:51.863921 7f5cc52e3780 0 filestore(/data/osd6-3) 
> mount syncfs(2) syscall not support by glibc 
> 2012-11-06 17:05:51.863925 7f5cc52e3780 0 filestore(/data/osd6-3) 
> mount no syncfs(2), must use sync(2). 
> 
> as a show-stopper. 
> 
> That's with 3.2.* and 3.6.6 kernel. Should be new enough. And 
> ceph-0.48.2 ( eu.ceph.com mirror was installing 0.48.1.. though *ops* 
> ;) ) 
> 
> But both should be capable of this system-call?! 
> 
> We've been so very near... but now clueless, please sched some light 
> in 8-) 
> 
> ( I hope this is not a very obvious human RTFM error ;) ) 
> 
> And so I'm writing, should one enable directio + aio, as we're having 
> the journals on a SSD-partition? 
> 
> Kind regards, 
> 
> Oliver. 
> 


-- 

Oliver Francke 

filoo GmbH 
Moltkestraße 25a 
33330 Gütersloh 
HRB4355 AG Gütersloh 

Geschäftsführer: S.Grewing | J.Rehpöhler | C.Kunz 

Folgen Sie uns auf Twitter: http://twitter.com/filoogmbh 

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Re: Ubuntu 12.04.1 + xfs + syncfs is still not our friend

[Dan Mick]

Resolution: installing the packages built for precise, rather than 
squeeze, got versions that use syncfs.

On 11/06/2012 08:31 AM, Oliver Francke wrote:
> In answer to myself,
>
> On 11/06/2012 05:14 PM, Oliver Francke wrote:
>> Hi *,
>>
>> anybody out there who's in Ubuntu 12.04.1/ in connection with libc +
>> xfs + syncfs?
>
> ii  libc6                            2.15-0ubuntu10.3
>
> but:
> apt-cache show...
> .
> .
> Provides: glibc-2.13-1
> .
> .
>
> playing with numbers, I think. But make clear, why syncfs-call is not in
> :-\
>
> ... search continues...
>
>>
>> We bit the bullet and reinstalled two new nodes from debian to precise
>> in favour of possible performance increase?!
>>
>> *sigh*, still getting:
>>
>> 2012-11-06 17:05:51.863921 7f5cc52e3780  0 filestore(/data/osd6-3)
>> mount syncfs(2) syscall not support by glibc
>> 2012-11-06 17:05:51.863925 7f5cc52e3780  0 filestore(/data/osd6-3)
>> mount no syncfs(2), must use sync(2).
>>
>> as a show-stopper.
>>
>> That's with 3.2.* and 3.6.6 kernel. Should be new enough. And
>> ceph-0.48.2 ( eu.ceph.com mirror was installing 0.48.1.. though *ops*
>> ;) )
>>
>> But both should be capable of this system-call?!
>>
>> We've been so very near... but now clueless, please sched some light
>> in 8-)
>>
>> ( I hope this is not a very obvious human RTFM error ;) )
>>
>> And so I'm writing, should one enable directio + aio, as we're having
>> the journals on a SSD-partition?
>>
>> Kind regards,
>>
>> Oliver.
>>
>
>

Re: Ubuntu 12.04.1 + xfs + syncfs is still not our friend

[Gandalf Corvotempesta]

2012/11/7 Dan Mick <dan.mick@inktank.com>:
> Resolution: installing the packages built for precise, rather than squeeze,
> got versions that use syncfs.

Which packages, ceph or libc?
Do you see any performance improvements?

Re: Ubuntu 12.04.1 + xfs + syncfs is still not our friend

[Josh Durgin]

On 11/07/2012 12:14 AM, Gandalf Corvotempesta wrote:
> 2012/11/7 Dan Mick <dan.mick@inktank.com>:
>> Resolution: installing the packages built for precise, rather than squeeze,
>> got versions that use syncfs.
>
> Which packages, ceph or libc?

The ceph packages.

Re: Ubuntu 12.04.1 + xfs + syncfs is still not our friend

[Gandalf Corvotempesta]

2012/11/6 Oliver Francke <Oliver.Francke@filoo.de>:
> 2012-11-06 17:05:51.863921 7f5cc52e3780  0 filestore(/data/osd6-3) mount
> syncfs(2) syscall not support by glibc
> 2012-11-06 17:05:51.863925 7f5cc52e3780  0 filestore(/data/osd6-3) mount no
> syncfs(2), must use sync(2).

Could you please try to run "ldd --version" and test if "man syncfs"
is working ?

Re: Ubuntu 12.04.1 + xfs + syncfs is still not our friend

[Jens Rehpöhler]

On 06.11.2012 18:33, Gandalf Corvotempesta wrote:
> 2012/11/6 Oliver Francke <Oliver.Francke@filoo.de>:
>> 2012-11-06 17:05:51.863921 7f5cc52e3780  0 filestore(/data/osd6-3) mount
>> syncfs(2) syscall not support by glibc
>> 2012-11-06 17:05:51.863925 7f5cc52e3780  0 filestore(/data/osd6-3) mount no
>> syncfs(2), must use sync(2).
> Could you please try to run "ldd --version" and test if "man syncfs"
> is working ?
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Here is the output:

ldd --version
ldd (Ubuntu EGLIBC 2.15-0ubuntu10.3) 2.15

After installing manpages-dev i get the man page for syncfs (with  "man
syncfs")

Distribution is a normal Ubuntu 12.04.1

-- 
mit freundlichen Grüssen

Jens Rehpöhler

----------------------------------------------------------------------
Filoo GmbH
Moltkestr. 25a
33330 Gütersloh
HRB4355 AG Gütersloh

Geschäftsführer: S.Grewing | J.Rehpöhler | Dr. C.Kunz
Telefon: +49 5241 8673012 | Mobil: +49 151 54645798
Fax: +49 5241 8673020

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Re: Ubuntu 12.04.1 + xfs + syncfs is still not our friend

[Oliver Francke]

Hi Jens,

sorry for the double work… answered off-list already ;)

Oliver.

Am 06.11.2012 um 19:46 schrieb Jens Rehpöhler <jens.rehpoehler@filoo.de>:

> On 06.11.2012 18:33, Gandalf Corvotempesta wrote:
>> 2012/11/6 Oliver Francke <Oliver.Francke@filoo.de>:
>>> 2012-11-06 17:05:51.863921 7f5cc52e3780  0 filestore(/data/osd6-3) mount
>>> syncfs(2) syscall not support by glibc
>>> 2012-11-06 17:05:51.863925 7f5cc52e3780  0 filestore(/data/osd6-3) mount no
>>> syncfs(2), must use sync(2).
>> Could you please try to run "ldd --version" and test if "man syncfs"
>> is working ?
>> --
>> To unsubscribe from this list: send the line "unsubscribe ceph-devel" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Here is the output:
> 
> ldd --version
> ldd (Ubuntu EGLIBC 2.15-0ubuntu10.3) 2.15
> 
> After installing manpages-dev i get the man page for syncfs (with  "man
> syncfs")
> 
> Distribution is a normal Ubuntu 12.04.1
> 
> -- 
> mit freundlichen Grüssen
> 
> Jens Rehpöhler
> 
> ----------------------------------------------------------------------
> Filoo GmbH
> Moltkestr. 25a
> 33330 Gütersloh
> HRB4355 AG Gütersloh
> 
> Geschäftsführer: S.Grewing | J.Rehpöhler | Dr. C.Kunz
> Telefon: +49 5241 8673012 | Mobil: +49 151 54645798
> Fax: +49 5241 8673020
> 

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