[Ocfs2-users] No space left on device error, older kernels?

[Sunil Mushran]

OCFS2 is EL6 will have this feature.

OCFS2 in SLES11 SP1 should have this feature already. If not, it
should be in their next update.

If Ubuntu wants it in Lucid, then they can backport the feature.
The patches are clearly marked in all trees including mainline.
And the ocfs2-devel mailing list is open to all.

The stable tree accepts small bug fixes only. It is a wise policy as
backporting a large patchset is inherently risky.

Sunil

On 10/27/2010 11:16 AM, Patrick J. LoPresti wrote:
> Since EL6 is based on 2.6.32, and SLES 11 SP1 is based on 2.6.32, and
> Ubuntu Lucid LTS is based on 2.6.32...
>
> ...maybe there is a case for getting this sort of extremely useful
> feature into the 2.6.32 trunk?  (The "no space left on device" problem
> is arguably a bug anyway...)
>
> Just a thought from the peanut gallery.
>
>   - Pat
>
>
> On Wed, Oct 27, 2010 at 10:20 AM, Sunil Mushran
> <sunil.mushran at oracle.com>  wrote:
>> That kernel is 2.6.18 based. Too old. It's a lot of work. Specially in
>> testing. We'd rather utilise our resources on releasing this on EL6.
>>
>> OCFS2 on EL6 will have all features that 1.6 has.
>>
>> On 10/27/2010 10:12 AM, Mick Waters wrote:
>>> Hi Sunil,
>>>
>>> Will you be porting this to the latest RHEL 5 kernel?  We don't all have UEL.
>>>
>>> Regards,
>>>
>>> Mick.
>>>
>>> -----Original Message-----
>>> From: ocfs2-users-bounces at oss.oracle.com [mailto:ocfs2-users-bounces at oss.oracle.com] On Behalf Of Sunil Mushran
>>> Sent: 27 October 2010 17:49
>>> To: Ronald Moesbergen
>>> Cc: ocfs2-users at oss.oracle.com
>>> Subject: Re: [Ocfs2-users] No space left on device error, older kernels?
>>>
>>> We don't backport features to older mainline kernels. We do it only for production kernels but that too within reason.
>>>
>>> This feature is available in OCFS2 1.6 with UEK (2.6.32 based kernel) on OL5.
>>>
>>> http://www.oracle.com/us/technologies/linux/ubreakable-enterprise-kernel-linux-173350.html
>>>
>>> http://oss.oracle.com/projects/ocfs2/
>>>
>>> On 10/27/2010 08:07 AM, Ronald Moesbergen wrote:
>>>> Hello,
>>>>
>>>> Regarding the "no space" issue below: the fix is the discontig-bg
>>>> feature added in 2.6.35. Will this be backported to earlier kernels
>>>> (as a stable update, for example) or does everyone seeing this issue
>>>> have to upgrade to 2.6.35 or later? I'm asking because I'm seeing this
>>>> issue too, but am unable to upgrade to anything newer than 2.6.34.7
>>>> because of xen kernel incompatibilities.
>>>>
>>>> Regards,
>>>> Ronald.
>>>>
>>>>> On 09/21/2010 04:52 PM, Alexander Barton wrote:
>>>>>> Hi Tao!
>>>>>>
>>>>>> Am 09.09.2010 um 02:29 schrieb Tao Ma:
>>>>>>
>>>>>>> btw, I may commit the ocfs2-tools patches recently, and you can try it with 2.6.35.
>>>>>> Ok, now we are seeing the problem again and want to try a new kernel
>>>>>> and the new OCFS2 tools - there aren't that much files left we could
>>>>>> delete instead ...
>>>>>>
>>>>>> So kernel 2.6.35.4 would be ok?
>>>>> It should work.
>>>>>> And OCFS2 tools from the GIT master branch? Or a special tag? There is no archive or release, right?
>>>> I>     have already committed the patches to ocfs2-tools.
>>>>> So you can get from
>>>>> git clone git://oss.oracle.com/git/ocfs2-tools.git
>>>>> I guess there is no release for it yet.
>>>>>> So are there any special steps we have to follow? Do some magic fsck.ocfs2 runs? Splashing chicken blood on moonlight? ...? Or is simply installing the new kernel and the new>tools enough and "everything" should be working fine again afterwards?
>>>>> No need for fsck.ocfs2.
>>>>> Just do tunefs.ocfs2 --fs-features=discontig-bg /dev/sdx(which means
>>>>> you have to umount the volume from all the nodes first) and mount it
>>>>> again and it should work. any problem, please let us know. Thanks.
>>>>>
>>>>> Make sure you see 'discontig-bg' in the output of following cmd.
>>>>> echo 'stats'|debugfs.ocfs2 /dev/sdx|grep Incompat
>>>>>
>>>>>> Thanks for your support!
>>>>> no problem.
>>>>>
>>>>> Regards,
>>>>> Tao
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