Lustre discuss - Jul 2009 - Lustre compared to Gluster (Mag Gam)

>
> We have been hearing a lot of news recently about "Gluster". Does
> anyone know how it compares to Lustre? Can it do the same things as
> Lustre? It seems it has built in SNS. Anyone know?

We have tried Gluster on several occasions and it was always buggy at scale.
Initially we had about 60TB of medium sized files in a test environment with
about 20 clients, and Gluster flipped out when a node would reboot. Since
there is no Metadata server, it appeared to hang on reindexing everything on
each node on start up. Also lots of weird hangs and things like taking 5
minutes to return an ls. No where near as stable as Lustre, which more or
less just works, with a smaller number of weird issues.

The Gluster company also gave us a lot of mixed signals. They called us once
to offer us free support in helping up set up a reevaluation of GlusterFS.
We spoke to the CEO''s and agreed. After spending several hours setting
it up
ourselves, they then avoided our support questions saying priority goes to
paying customers. Ultimately they attempted to help us, but with little
success.

They present a nice roadmap and the concept of minimizing complexity is
promising for things like backup systems. Unfortunately they are nowhere
near ready. Hopefully they can stabilize their product in the future because
it would be a good addition to the open-source community.

Jordan
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I was first interested in the simplicity and redundancy but it seems
the product needs to be more mature like Lustre.  Can''t wait until
Lustre''s SNS ;-)



On Fri, Jul 17, 2009 at 12:41 PM, Jordan Mendler<jmendler at ucla.edu>
wrote:
>> We have been hearing a lot of news recently about "Gluster".
Does
>> anyone know how it compares to Lustre? Can it do the same things as
>> Lustre? It seems it has built in SNS. Anyone know?
>
> We have tried Gluster on several occasions and it was always buggy at
scale.
> Initially we had about 60TB of medium sized files in a test environment
with
> about 20 clients, and Gluster flipped out when a node would reboot. Since
> there is no Metadata server, it appeared to hang on reindexing everything
on
> each node on start up. Also lots of weird hangs and things like taking 5
> minutes to return an ls. No where near as stable as Lustre, which more or
> less just works, with a smaller number of weird issues.
>
> The Gluster company also gave us a lot of mixed signals. They called us
once
> to offer us free support in helping up set up a reevaluation of GlusterFS.
> We spoke to the CEO''s and agreed. After spending several hours
setting it up
> ourselves, they then avoided our support questions saying priority goes to
> paying customers. Ultimately they attempted to help us, but with little
> success.
>
> They present a nice roadmap and the concept of minimizing complexity is
> promising for things like backup systems. Unfortunately they are nowhere
> near ready. Hopefully they can stabilize their product in the future
because
> it would be a good addition to the open-source community.
>
> Jordan
>
> _______________________________________________
> Lustre-discuss mailing list
> Lustre-discuss at lists.lustre.org
> http://lists.lustre.org/mailman/listinfo/lustre-discuss
>
>

I certainly second the notion of lustre SNS just not sure its going to
happen any time soon. For us it would allow lustre to serve as a
production file store instead of just a fast scratch space.

Jordan

On 7/18/09, Mag Gam <magawake at gmail.com> wrote:
> I was first interested in the simplicity and redundancy but it seems
> the product needs to be more mature like Lustre.  Can''t wait until
> Lustre''s SNS ;-)
>
>
>
> On Fri, Jul 17, 2009 at 12:41 PM, Jordan Mendler<jmendler at
ucla.edu> wrote:
>>> We have been hearing a lot of news recently about
"Gluster". Does
>>> anyone know how it compares to Lustre? Can it do the same things as
>>> Lustre? It seems it has built in SNS. Anyone know?
>>
>> We have tried Gluster on several occasions and it was always buggy at
>> scale.
>> Initially we had about 60TB of medium sized files in a test environment
>> with
>> about 20 clients, and Gluster flipped out when a node would reboot.
Since
>> there is no Metadata server, it appeared to hang on reindexing
everything
>> on
>> each node on start up. Also lots of weird hangs and things like taking
5
>> minutes to return an ls. No where near as stable as Lustre, which more
or
>> less just works, with a smaller number of weird issues.
>>
>> The Gluster company also gave us a lot of mixed signals. They called us
>> once
>> to offer us free support in helping up set up a reevaluation of
GlusterFS.
>> We spoke to the CEO''s and agreed. After spending several hours
setting it
>> up
>> ourselves, they then avoided our support questions saying priority goes
to
>> paying customers. Ultimately they attempted to help us, but with little
>> success.
>>
>> They present a nice roadmap and the concept of minimizing complexity is
>> promising for things like backup systems. Unfortunately they are
nowhere
>> near ready. Hopefully they can stabilize their product in the future
>> because
>> it would be a good addition to the open-source community.
>>
>> Jordan
>>
>> _______________________________________________
>> Lustre-discuss mailing list
>> Lustre-discuss at lists.lustre.org
>> http://lists.lustre.org/mailman/listinfo/lustre-discuss
>>
>>
>
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