[PVE-User] [pve-devel] corosync unicast : does somebody use it in production with 10-16 nodes ?

[Dimitris Beletsiotis]

Hi Alexander,

Nice, thanks for sharing, it will definitely help in some cases.

Regards,
Dimitris Beletsiotis

On Wed, Jul 12, 2017, 10:15 Alexandre DERUMIER <aderumier at odiso.com> wrote:

> Hi,
>
> just for the record,
>
> I have migrate all my clusters with unicast, also big clusters with 16-20
> nodes, and It's working fine.
>
>
> "pvedaemon: ipcc_send_rec failed: Transport endpoint is not connected "
> seem to be gone.
>
> don't see any error on the cluster.
>
> traffic is around 3-4mbit/s on each node.
>
>
>
> ----- Mail original -----
> De: "aderumier" <aderumier at odiso.com>
> À: "pve-devel" <pve-devel at pve.proxmox.com>
> Cc: "proxmoxve" <pve-user at pve.proxmox.com>
> Envoyé: Vendredi 7 Juillet 2017 11:51:42
> Objet: Re: [pve-devel] corosync unicast : does somebody use it in
> production with 10-16 nodes ?
>
> note that I'm just seeing , time to time (around once by hour),
>
> pvedaemon: ipcc_send_rec failed: Transport endpoint is not connected
>
> But I don't have any corosync error / retransmit.
>
>
> ----- Mail original -----
> De: "aderumier" <aderumier at odiso.com>
> À: "pve-devel" <pve-devel at pve.proxmox.com>, "proxmoxve" <
> pve-user at pve.proxmox.com>
> Envoyé: Vendredi 7 Juillet 2017 10:46:33
> Objet: [pve-devel] corosync unicast : does somebody use it in production
> with 10-16 nodes ?
>
> Hi,
>
> I'm looking to remove multicast from my network (Don't have too much time
> to explain, but we have multicast storm problem,because of igmp snooping
> bug)
>
> Does somebody running it with "big" clusters ? (10-16 nodes)
>
>
> I'm currently testing it with 9 nodes (1200vm+containers), I'm seeing
> around 3mbit/s of traffic on each node,
>
> and I don't have any cluster break for now. (Switch have recents asics
> with around 0,015ms latency).
>
>
> Any return of experience is welcome :)
>
> Thanks !
>
> Alexandre
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