MTU issues due to the VPN connection?
Paul
--
Paul Emmerich
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On Wed, Aug 14, 2019 at 1:48 PM Lorenz Kiefner
wrote:
>
> Dear ceph-users,
>
> I
Hi,
this was the first thing I was thinking about (and yes, there had been
some issues, but they are resolved - double checked!).
MTU is consistent throughout the whole net and pings in all sizes are
handled well. And MTU problems wouldn't probably make a difference
between backfills and normal o
On 8/14/19 5:46 PM, Lorenz Kiefner wrote:
> Hi,
>
> this was the first thing I was thinking about (and yes, there had been
> some issues, but they are resolved - double checked!).
>
> MTU is consistent throughout the whole net and pings in all sizes are
> handled well. And MTU problems wouldn'
Ok, then Ceph probably doesn't fit for me.
I wanted to provide a backup platform for me, my family and my friends.
Speed is not relevant, but long-term reliability. So I'm depending on
home internet connections and VPN.
At the moment I'm mostly using wireguard, but I could switch to openvpn
to re
Oh no, it's not that bad. It's
$ ping -s 65000 dest.inati.on
on a VPN connection that has a MTU of 1300 via IPv6. So I suspect that I
only get an answer, when all 51 fragments get fully returned. It's clear
that big packets with lots of fragments are more affected by packet loss
than 64 byte ping
Personally I would not be trying to create a Ceph cluster across Consumer
Internet links, usually their upload speed is so slow and Ceph is so chatty
that it would make for a horrible experience. If you are looking for a
backup solution, then I would look at some sort of n-way rsync solution, or
bt
Hello again,
all links are at least 10/50 mbit upstream/downstream, mostly 40/100
mbit, with some VMs at hosting companies running at 1/1 gbit. All my 39
OSDs on 17 hosts in 11 locations (5 of them are connected at the moment
by consumer internet links) are nearly in a full mesh network consisting
Only other thing I can think of is that a firewall is dropping idle
connections, although Ceph should be sending heartbeats more often then the
common 5 minutes for most firewalls. In the logs is it showing the monitor
marking the OSDs out or the OSD peers? That would give you an idea where to
look
