Hello Jiri,
Are there any news regarding the teaming problem we at SOX had ? Did you manage to find time to investigate it on RH7 or ask somebody in RH for opinion ?
I am under some pressure to solve this problem quickly (even if it means going back to classical bonding) :-(
Can you give me the advice what to do: - Change the port aggregation from teaming to bonding. - Try to upgrade/reinstall kernel team module (how ?!? - I know Linux - but I don't know it that well to just-change-kernel-modules on the fly :-) ) - Give you some other useful data that can help you find some other solution.
I would highly appreciate any (and I really mean ANY) help, advice or suggestion you can give us regarding this problem.
Best regards G.Slavic
-----Original Message----- From: Jiri Pirko [mailto:jiri@resnulli.us] Sent: Monday, 08 June 2015 12:22 To: Goran Slavić Subject: Re: Problems with teaming ...
Mon, Jun 08, 2015 at 12:10:03PM CEST, gslavic@sox.rs wrote:
Not today (I am over my head is some other work) but I will contact you tomorrow/the day after tomorrow.
What is your concern ? / What does this program do ? Problem is that any installation or testing on this server must be approved from "higher up" because this is very important server to us :-)
If you think that the problem is with the switch that this server is connected to or some other upstream equipment - I can tell you that this is probably not the issue. If you see the graphs from my original post the switch has been balancing traffic to the server almost perfectly (5-10% plus/minus) and that same switch has 2 other LACP aggregated port groups where classical bonding works in communication with other servers.
I'm 99,9% sure that the problem is inside kernel team module. For me, on upstream kernel the issue does not happen. Looks like this is limited to rhel7/centos7.
I would test it on rhel7, unfortunatelly I'm no longer Red Hat employee so I don't have access to rhel7 machine.
Will try ask someone from RH.
Fri, Jun 26, 2015 at 09:23:34AM CEST, gslavic@gmail.com wrote:
Hello Jiri,
Are there any news regarding the teaming problem we at SOX had ? Did you manage to find time to investigate it on RH7 or ask somebody in RH for opinion ?
I am under some pressure to solve this problem quickly (even if it means going back to classical bonding) :-(
Can you give me the advice what to do:
- Change the port aggregation from teaming to bonding.
- Try to upgrade/reinstall kernel team module (how ?!? - I know
Linux - but I don't know it that well to just-change-kernel-modules on the fly :-) )
- Give you some other useful data that can help you find some other
solution.
I would highly appreciate any (and I really mean ANY) help, advice or suggestion you can give us regarding this problem.
Would you be able to compile and test latest net-next kernel?
https://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git
That will tell us more about if the issue still exists in upstream of if it is just in rhel/centos.
Thanks
Best regards G.Slavic
-----Original Message----- From: Jiri Pirko [mailto:jiri@resnulli.us] Sent: Monday, 08 June 2015 12:22 To: Goran Slavić Subject: Re: Problems with teaming ...
Mon, Jun 08, 2015 at 12:10:03PM CEST, gslavic@sox.rs wrote:
Not today (I am over my head is some other work) but I will contact you tomorrow/the day after tomorrow.
What is your concern ? / What does this program do ? Problem is that any installation or testing on this server must be approved from "higher up" because this is very important server to us :-)
If you think that the problem is with the switch that this server is connected to or some other upstream equipment - I can tell you that this is probably not the issue. If you see the graphs from my original post the switch has been balancing traffic to the server almost perfectly (5-10% plus/minus) and that same switch has 2 other LACP aggregated port groups where classical bonding works in communication with other servers.
I'm 99,9% sure that the problem is inside kernel team module. For me, on upstream kernel the issue does not happen. Looks like this is limited to rhel7/centos7.
I would test it on rhel7, unfortunatelly I'm no longer Red Hat employee so I don't have access to rhel7 machine.
Will try ask someone from RH.
libteam@lists.fedorahosted.org
-
Goran Slavić -
Jiri Pirko