Just save yourself the trouble. You won't have any real benefit from MTU
9000. It has some smallish, but it is not worth the effort, problems, and
loss of reliability for most environments.
Try it yourself and do some benchmarks, especially with your regular
workload on the cluster (not the maximum
Ping with 9000 MTU won't get response as I said and it should be 8972. Glad
it is working but you should know what happened to avoid this issue later.
On Sun, May 24, 2020, 3:04 AM Amudhan P wrote:
> No, ping with MTU size 9000 didn't work.
>
> On Sun, May 24, 2020 at 12:26 PM Khodayar Doustar
I didn't do any changes but started working now with jumbo frames.
On Sun, May 24, 2020 at 1:04 PM Khodayar Doustar
wrote:
> So this is your problem, it has nothing to do with Ceph. Just fix the
> network or rollback all changes.
>
> On Sun, May 24, 2020 at 9:05 AM Amudhan P wrote:
>
>> No, pin
So this is your problem, it has nothing to do with Ceph. Just fix the
network or rollback all changes.
On Sun, May 24, 2020 at 9:05 AM Amudhan P wrote:
> No, ping with MTU size 9000 didn't work.
>
> On Sun, May 24, 2020 at 12:26 PM Khodayar Doustar
> wrote:
>
> > Does your ping work or not?
> >
it's a Dell S4048T-ON Switch using 10G Ethernet.
On Sat, May 23, 2020 at 11:05 PM apely agamakou wrote:
> Hi,
>
> Please check you MTU limit at the switch level, cand check other
> ressources with icmp ping.
> Try to add 14Byte for ethernet header at your switch level mean an MTU of
> 9014 ? are
No, ping with MTU size 9000 didn't work.
On Sun, May 24, 2020 at 12:26 PM Khodayar Doustar
wrote:
> Does your ping work or not?
>
>
> On Sun, May 24, 2020 at 6:53 AM Amudhan P wrote:
>
>> Yes, I have set setting on the switch side also.
>>
>> On Sat 23 May, 2020, 6:47 PM Khodayar Doustar,
>> w
Does your ping work or not?
On Sun, May 24, 2020 at 6:53 AM Amudhan P wrote:
> Yes, I have set setting on the switch side also.
>
> On Sat 23 May, 2020, 6:47 PM Khodayar Doustar,
> wrote:
>
>> Problem should be with network. When you change MTU it should be changed
>> all over the network, any
Yes, I have set setting on the switch side also.
On Sat 23 May, 2020, 6:47 PM Khodayar Doustar, wrote:
> Problem should be with network. When you change MTU it should be changed
> all over the network, any single hup on your network should speak and
> accept 9000 MTU packets. you can check it on
Hi,
It should be ping -M do -s 8972 IP ADDRESS.
You can't ping with 9000 size. If you can't ping with 8972 size, then
somewhere in the path MTU config is wrong.
Regards,
Suresh
On Sat, May 23, 2020, 1:35 PM apely agamakou wrote:
> Hi,
>
> Please check you MTU limit at the switch level, cand
Hi,
Please check you MTU limit at the switch level, cand check other ressources
with icmp ping.
Try to add 14Byte for ethernet header at your switch level mean an MTU of
9014 ? are you using juniper ???
Exemple : ping -D -s 9 other_ip
Le sam. 23 mai 2020 à 15:18, Khodayar Doustar a
écrit
Problem should be with network. When you change MTU it should be changed
all over the network, any single hup on your network should speak and
accept 9000 MTU packets. you can check it on your hosts with "ifconfig"
command and there is also equivalent commands for other network/security
devices.
I
Can the servers/nodes ping eachother using large packet sizes? I guess not.
Sinan Polat
> Op 23 mei 2020 om 14:21 heeft Amudhan P het volgende
> geschreven:
>
> In OSD logs "heartbeat_check: no reply from OSD"
>
>> On Sat, May 23, 2020 at 5:44 PM Amudhan P wrote:
>>
>> Hi,
>>
>> I have set
In OSD logs "heartbeat_check: no reply from OSD"
On Sat, May 23, 2020 at 5:44 PM Amudhan P wrote:
> Hi,
>
> I have set Network switch with MTU size 9000 and also in my netplan
> configuration.
>
> What else needs to be checked?
>
>
> On Sat, May 23, 2020 at 3:39 PM Wido den Hollander wrote:
>
>
Hi,
I have set Network switch with MTU size 9000 and also in my netplan
configuration.
What else needs to be checked?
On Sat, May 23, 2020 at 3:39 PM Wido den Hollander wrote:
>
>
> On 5/23/20 12:02 PM, Amudhan P wrote:
> > Hi,
> >
> > I am using ceph Nautilus in Ubuntu 18.04 working fine wit
On 5/23/20 12:02 PM, Amudhan P wrote:
> Hi,
>
> I am using ceph Nautilus in Ubuntu 18.04 working fine wit MTU size 1500
> (default) recently i tried to update MTU size to 9000.
> After setting Jumbo frame running ceph -s is timing out.
Ceph can run just fine with an MTU of 9000. But there is p
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