By the way, try to capture the traffic on the systems and compare if only
specific packages are not delivered to the destination.
Overall JF won't give you a 2-digit improvement, so in your case I would switch
to 1500 MTU.
Best Regards,Strahil Nikolov
I already updated the firmware of
We are currently shooting in the dark...If possible update the Firmware of the
NICs and FW of the switch .
Have you tried if other systems (on the same switch) have issues with the Jumbo
Frames ?
Best Regards,Strahil Nikolov
Yes, i did test the ping with a jumbo frame mtu and it worked
Usually that kind of problems could be on many places.
When you set the MTU to 9000, did you test with ping and the "Do not fragment"
Flag ?
If there is a device on the path that is not configured (or doesn't support
MTU9000) , it will fragment all packets and that could lead to excessive
Il 2022-09-16 18:41 dpglus...@posteo.de ha scritto:
I have made extensive load tests in the last few days and figured out
it's definitely a network related issue. I changed from jumbo frames
(mtu 9000) to default mtu of 1500. With a mtu of 1500 the problem
doesn't occur. I'm able to bump the
I have made extensive load tests in the last few days and figured out
it's definitely a network related issue. I changed from jumbo frames
(mtu 9000) to default mtu of 1500. With a mtu of 1500 the problem
doesn't occur. I'm able to bump the io-wait of our gluster storage
servers to the max
Yes, the firmware update of the network adapters is planned for the next
week.
The tcpdump is currently running and i will share the result with you.
The update to ovirt 4.4 (and to 4.5) is quite a big deal because of the
switch to CentOS stream where a full reinstall is required and there is
Did you tired to TCPdump the connections to see who and how closes the
connection? Normal fin-ack, or timeout? Maybe some network device between?
(This later has small probably since you told that you can trigger the
error by high load.)
于 2022年8月18日周四 12:38写道：
> I just niced all glusterfsd
I just niced all glusterfsd processes on all nodes to a value of -10.
The problem just occured, so it seems nicing the processes didn't help.
Am 18.08.2022 09:54 schrieb Péter Károly JUHÁSZ:
What if you renice the gluster processes to some negative value?
于 2022年8月18日周四 09:45写道：
Hi folks,
What if you renice the gluster processes to some negative value?
于 2022年8月18日周四 09:45写道：
> Hi folks,
>
> i am running multiple GlusterFS servers in multiple datacenters. Every
> datacenter is basically the same setup: 3x storage nodes, 3x kvm
> hypervisors (oVirt) and 2x HPE switches which are
