[Gluster-users] 2.1 xen direct io

Nathan Stratton nathan at robotics.net
Mon Oct 12 15:16:01 UTC 2009

On Mon, 12 Oct 2009, samppah at neutraali.net wrote:

>>> 2.1 RC1 is scheduled on 19th Oct. You will need 2.6.26+ kernel for the
>>> performance enhancements. There are no custom kernel fuse modules from
>>> 2.6.26 onwards. 2.6.18 will still need --disable-direct-io mode. Let
>>> me get back to you with the tap:aio answer.
>> So what kernel are you guys running on? Are you testing on a xen dom0
>> kernel?
> I was able to use Xen images in file mode without using
> --disable-direct-io-mode when running Fedora 12 alpha with
> kernel and Git version of GlusterFS.
> Unfortunately, I had to disable all performance translators on client side
> because using them crashed the client even when running ls.

Great, where did you get your kernel? Are you using?

git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git linux-2.6-xen

Any chance you are also using Infiniband??? :-)

> I also tried with tap:aio and it got bit further than before. Instead of
> hanging domU it gave me timeout error when trying to connect to the
> device.

Gluster guys, any plans to have tap:aio work?


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