[Gluster-users] about HA infrastructure for hypervisors

[David Coulson]

No

I saw a patch to have it behave like this, but I can't find it right now.

On 6/28/12 6:54 AM, Tim Bell wrote:
> Assuming that we use a 3 copy approach across the hypervisors, does Gluster
> favour the local copy on the hypervisor if the data is on
> distributed/replicated ?
>
> It would be good to avoid the network hop when the data is on the local
> disk.
>
> Tim
>
>> -----Original Message-----
>> From: gluster-users-bounces at gluster.org [mailto:gluster-users-
>> bounces at gluster.org] On Behalf Of Fernando Frediani (Qube)
>> Sent: 28 June 2012 11:43
>> To: 'Nicolas Sebrecht'; 'Thomas Jackson'
>> Cc: 'gluster-users'
>> Subject: Re: [Gluster-users] about HA infrastructure for hypervisors
>>
>> You should indeed to use the same server running as a storage brick as a
>> KVM host to maximize hardware and power usage. Only thing I am not sure
>> is if you can limit the amount of host memory Gluster can eat so most of
> it
>> gets reserved for the Virtual Machines.
>>
>> Fernando
>>
>> -----Original Message-----
>> From: gluster-users-bounces at gluster.org [mailto:gluster-users-
>> bounces at gluster.org] On Behalf Of Nicolas Sebrecht
>> Sent: 28 June 2012 10:31
>> To: Thomas Jackson
>> Cc: 'gluster-users'
>> Subject: [Gluster-users] Re: about HA infrastructure for hypervisors
>>
>> The 28/06/12, Thomas Jackson wrote:
>>
>>> Why don't you have KVM running on the Gluster bricks as well?
>> Good point. While abtracting we decided to seperate KVM & Gluster but I
>> can't remember why.
>> We'll think about that again.
>>
>>> We have a 4 node cluster (each with 4x 300GB 15k SAS drives in
>>> RAID10), 10 gigabit SFP+ Ethernet (with redundant switching). Each
>>> node participates in a distribute+replicate Gluster namespace and runs
>>> KVM. We found this to be the most efficient (and fastest) way to run the
>> cluster.
>>> This works well for us, although (due to Gluster using fuse) it isn't
>>> as fast as we would like. Currently waiting for the KVM driver that
>>> has been discussed a few times recently, that should make a huge
>>> difference to the performance for us.
>> Ok! Thanks.
>>
>> --
>> Nicolas Sebrecht
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