Re: [Gluster-users] Arbiter node in slow network

2023-01-04 Thread Strahil Nikolov
 As Alan mentioned latency is more important.

Also consider using an SSD for all arbiter bricks and set maxpct (man 8 
mkfs.xfs) to a high level (I prefer to use '90').

Best Regards,
Strahil Nikolov

 В събота, 31 декември 2022 г., 10:43:50 ч. Гринуич+2, Alan Orth 
 написа:  
 
 Hi Filipe,
I think it would probably be fine. The Red Hat Storage docs list the important 
thing being 5ms latency, not link speed:
https://access.redhat.com/documentation/en-us/red_hat_gluster_storage/3.5/html/administration_guide/creating_arbitrated_replicated_volumes
 I haven't used an arbiter configuration yet (still stuck on distribute + 
replicate, not sure how to migrate). Let us know it goes.
Regards,

On Fri, Dec 2, 2022 at 6:59 PM Filipe Alvarez  wrote:

Hi glusters,
I'm close to deploy my first GlusterFS replica 3 arbiter 1 volume.
Below I will describe my hardware / plans:

Node1: two bricks, 2 x raid0 arrays 40gbe network
Node2: two bricks, 2 x raid0 arrays 40gbe network
Node3: Arbiter 1gbe network

Between Node1 and Node2, I have a 40gbe network.

But the arbiter has 1 gbe network.

The question is, can arbiter run in a slow network ? It will affect the general 
performance of volume?
Thank you





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Re: [Gluster-users] [EXT] Re: [Glusterusers] Arbiter node in slow network

2023-01-04 Thread WK

sorry for the late reply.

We use exactly that setup

10G - 10G - 1G (arbiter on a little desktop box)

All drives are SSDs

Because the arbiter only sees the metadata , 1GB is more than enough

On a VM host cluster the charts the peak activity for the arbiter rarely 
exceeds a couple Mb/s during normal ops and even when healing after host 
maintenance its less than 100Mb/s


-wk

On 12/31/2022 12:43 AM, Alan Orth wrote:

Hi Filipe,

I think it would probably be fine. The Red Hat Storage docs list the 
important thing being /5ms latency/, not link speed:


https://access.redhat.com/documentation/en-us/red_hat_gluster_storage/3.5/html/administration_guide/creating_arbitrated_replicated_volumes

I haven't used an arbiter configuration yet (still stuck on distribute 
+ replicate, not sure how to migrate). Let us know it goes.


Regards,

On Fri, Dec 2, 2022 at 6:59 PM Filipe Alvarez 
 wrote:


Hi glusters,

I'm close to deploy my first GlusterFS replica 3 arbiter 1 volume.

Below I will describe my hardware / plans:

Node1: two bricks, 2 x raid0 arrays 40gbe network
Node2: two bricks, 2 x raid0 arrays 40gbe network
Node3: Arbiter 1gbe network

Between Node1 and Node2, I have a 40gbe network.

But the arbiter has 1 gbe network.

The question is, can arbiter run in a slow network ? It will
affect the general performance of volume?

Thank you






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https://picturingjordan.com
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https://mjanja.ch





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