Eric, That's great news, glad to hear that it is working!
Fudge sounds nice :-). But maybe just spread the word that Loadbalancer.org are nice people? http://loadbalancer.org/blog/so-just-how-should-you-compare-load-balancers I remember now that we did some work with Horms to fix GRO for a customer of ours who needed it (but RHEL 6.3 probably doesn't have it) Dug out of my email: In all 2.6.39 was a rather busy release for LVS with a total of 92 patches. Some highlights are: Features * Network namespace support * New synchronisation protocol * Optimised statistics reading Bug Fixes * Allow transmit of GRO aggregated skbs * Allow fragmented packets to be handled by SIP persistence engine * Correct zeroing of statistics On 19 September 2015 at 08:28, Eric Robinson <eric.robin...@psmnv.com> wrote: > Malcom -- My wife makes wonderful fudge at Christmas time. Where should I > send yours? > > Because... > > ethtool -K p2p1 gro off > ethtool -K p2p2 gro off > ethtool -K p2p3 gro off > ethtool -K p2p4 gro off > > ...totally fixed it! The change was instantaneous. I didn't even have to > down/up the interfaces. > > I'm sitting here stunned. The application isn't freezing any more. I hardly > know what to do with myself. > > Thanks! > > --Eric > > -----Original Message----- > From: lvs-users-boun...@linuxvirtualserver.org > [mailto:lvs-users-boun...@linuxvirtualserver.org] On Behalf Of Malcolm > Turnbull > Sent: Saturday, September 19, 2015 12:05 AM > To: LinuxVirtualServer.org users mailing list. > <lvs-users@linuxvirtualserver.org> > Subject: Re: [lvs-users] Upgraded my Load Balancers, Performance Went to Sh*t > > Eric, > > Ah , OK I thought that might be too simple :-). > > Some general advice from our end is: > We have had problems with both LRO & GRO in the past (we disable them both), > and we also run irqbalance (to save on CPU overhead from network traffic). > Also we tend to use Intel NICs with the latest drivers. > We do use Centos 6.3 (roughly) but with a more recent Kernel so I'm afraid I > can't be much help. > > > > > > On 18 September 2015 at 23:54, Eric Robinson <eric.robin...@psmnv.com> wrote: >> That's the odd part. We don't have any WRR health checks at all. Everything >> is WLC. And the ldirectord.cf file did not change, not did the version of >> ldirectord itself. I have checked through the file, and there are no virtual >> servers that are not backed by realservers, and there are no realservers >> showing in a down state. I would post the file but it is quite long. We have >> approximately 1700 virtual services configured. >> >> --Eric >> >> >> -----Original Message----- >> From: lvs-users-boun...@linuxvirtualserver.org >> [mailto:lvs-users-boun...@linuxvirtualserver.org] On Behalf Of Malcolm >> Turnbull >> Sent: Friday, September 18, 2015 2:20 PM >> To: LinuxVirtualServer.org users mailing list. >> <lvs-users@linuxvirtualserver.org> >> Subject: Re: [lvs-users] Upgraded my Load Balancers, Performance Went >> to Sh*t >> >> Eric, >> >> What kind of health checks are you using, it sounds like no backend servers >> available in the cluster? >> >> On 18 September 2015 at 17:11, Eric Robinson <eric.robin...@psmnv.com> wrote: >>> ...oh, and one other thing. After the upgrade, I am now seeing these syslog >>> messages once approximately per second... >>> >>> Sep 18 09:06:26 lb01a kernel: IPVS: WRR: no destination available: no >>> destinations present Sep 18 09:06:28 lb01a kernel: IPVS: WRR: no >>> destination available: no destinations present Sep 18 09:06:29 lb01a >>> kernel: IPVS: WRR: no destination available: no destinations present >>> Sep 18 09:06:31 lb01a kernel: IPVS: WRR: no destination available: no >>> destinations present Sep 18 09:06:32 lb01a kernel: IPVS: WRR: no >>> destination available: no destinations present Sep 18 09:06:34 lb01a >>> kernel: IPVS: WRR: no destination available: no destinations present >>> Sep 18 09:06:35 lb01a kernel: IPVS: WRR: no destination available: no >>> destinations present Sep 18 09:06:37 lb01a kernel: IPVS: WRR: no >>> destination available: no destinations present Sep 18 09:06:38 lb01a >>> kernel: IPVS: WRR: no destination available: no destinations present >>> Sep 18 09:06:40 lb01a kernel: IPVS: WRR: no destination available: no >>> destinations present Sep 18 09:06:41 lb01a kernel: IPVS: WRR: no >>> destination available: no destinations present Sep 18 09:06:43 lb01a >>> kernel: IPVS: WRR: no destination available: no destinations present >>> Sep 18 09:06:44 lb01a kernel: IPVS: WRR: no destination available: no >>> destinations present >>> >>> _______________________________________________ >>> Please read the documentation before posting - it's available at: >>> http://www.linuxvirtualserver.org/ >>> >>> LinuxVirtualServer.org mailing list - >>> lvs-users@LinuxVirtualServer.org Send requests to >>> lvs-users-requ...@linuxvirtualserver.org >>> or go to http://lists.graemef.net/mailman/listinfo/lvs-users >> >> >> >> -- >> Regards, >> >> Malcolm Turnbull. >> >> Loadbalancer.org Ltd. >> Phone: +44 (0)330 1604540 >> http://www.loadbalancer.org/ >> >> _______________________________________________ >> Please read the documentation before posting - it's available at: >> http://www.linuxvirtualserver.org/ >> >> LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org >> Send requests to lvs-users-requ...@linuxvirtualserver.org >> or go to http://lists.graemef.net/mailman/listinfo/lvs-users >> >> _______________________________________________ >> Please read the documentation before posting - it's available at: >> http://www.linuxvirtualserver.org/ >> >> LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org >> Send requests to lvs-users-requ...@linuxvirtualserver.org >> or go to http://lists.graemef.net/mailman/listinfo/lvs-users > > > > -- > Regards, > > Malcolm Turnbull. > > Loadbalancer.org Ltd. > Phone: +44 (0)330 1604540 > http://www.loadbalancer.org/ > > _______________________________________________ > Please read the documentation before posting - it's available at: > http://www.linuxvirtualserver.org/ > > LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org Send > requests to lvs-users-requ...@linuxvirtualserver.org > or go to http://lists.graemef.net/mailman/listinfo/lvs-users > > _______________________________________________ > Please read the documentation before posting - it's available at: > http://www.linuxvirtualserver.org/ > > LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org > Send requests to lvs-users-requ...@linuxvirtualserver.org > or go to http://lists.graemef.net/mailman/listinfo/lvs-users -- Regards, Malcolm Turnbull. Loadbalancer.org Ltd. Phone: +44 (0)330 1604540 http://www.loadbalancer.org/ _______________________________________________ Please read the documentation before posting - it's available at: http://www.linuxvirtualserver.org/ LinuxVirtualServer.org mailing list - lvs-users@LinuxVirtualServer.org Send requests to lvs-users-requ...@linuxvirtualserver.org or go to http://lists.graemef.net/mailman/listinfo/lvs-users
