[Gluster-devel] Re: [Gluster-users] Announcement: Alpha Release of Native NFS for GlusterFS

[Tejas N. Bhise]

Hi Justice,

We tested this ALPHA release with 4 physical machines for the servers ( NFS and GlusterFS server) and 7 to 11 machines as NFS clients. Some nfs client fan out testing was done with a larger number number of smaller machines.

The Vmware testing was testing for using GlusterFS NFS backend for vmdk. After that we ran some standard filesystem tests - connectathod, iozone, fio, bonnie++ etc inside the vmware partition. However the testing inside the partition was not as intensive as the one we did with the physical servers. An intensive testing inside the vmware partitions is planned between ALPHA and BETA release.

We would be happy to work with you to find out where you system locked up. Did you try to debug what happened ?
It would help if you can describe "lock up the entire machine" in detail. Did other vms running on the machine stop ?
Were you able to kill the test command ? if yes, then did things stabilize after that ?  

Please share your config and the commands etc you ran to start the NFS translator.

Regards,
Tejas.


----- Original Message -----
From: "Justice London" <jlondon at lawinfo.com>
To: "Tejas N. Bhise" <tejas at gluster.com>
Cc: gluster-users at gluster.org, gluster-devel at nongnu.org, nfs-alpha at gluster.com
Sent: Saturday, March 20, 2010 2:39:27 AM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi
Subject: Re: [Gluster-users] Announcement: Alpha Release of Native NFS for GlusterFS

I'm sorry.. but I don't know how you guys tested this, but using a
bare-bones configuration with the NFS translator and a mirror
configuration between two systems (no performance translators, etc.) I
can lock up the entire system after writing 160-180megs of data.

Basically:
dd if=/dev/full of=testfile bs=1M count=1000 is enough to lock the
entire machine.

This is on a CentOS 5.4 system with a xen backend (for testing).

I don't know what you guys tested with, but I can't get this stable...
at all.

Justice London
jlondon at lawinfo.com
On Thu, 2010-03-18 at 10:36 -0600, Tejas N. Bhise wrote:
> Dear Community Users,
> 
> Gluster is happy to announce the ALPHA release of the native NFS Server.
> The native NFS server is implemented as an NFS Translator and hence
> integrates very well, the NFS protocol on one side and GlusterFS protocol
> on the other side.
> 
> This is an important step in our strategy to extend the benefits of
> Gluster to other operating system which can benefit from a better NFS
> based data service, while enjoying all the backend smarts that Gluster
> provides.
> 
> The new NFS Server also strongly supports our efforts towards
> becoming a virtualization storage of choice.
> 
> The release notes of the NFS ALPHA Release are available at -
> 
> http://ftp.gluster.com/pub/gluster/glusterfs/qa-releases/nfs-alpha/GlusterFS_NFS_Alpha_Release_Notes.pdf
> 
> The Release notes describe where RPMs and source code can be obtained
> and where bugs found in this ALPHA release can be filed. Some examples 
> on usage are also provided.
> 
> Please be aware that this is an ALPHA release and in no way should be
> used in production. Gluster is not responsible for any loss of data
> or service resulting from the use of this ALPHA NFS Release.
> 
> Feel free to send feedback, comments and questions to: nfs-alpha at gluster.com
> 
> Regards,
> Tejas Bhise.
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