From mboxrd@z Thu Jan 1 00:00:00 1970 From: Riccardo Veraldi Subject: Re: live migration problems. Date: Sat, 31 Mar 2012 14:35:17 +0200 Message-ID: <4F76FA05.6010607@cnaf.infn.it> References: <29021590.158.1333144756986.JavaMail.acathrow@0.0.0.0> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Andrew Cathrow Return-path: Received: from smtpauth2.cnaf.infn.it ([131.154.3.56]:56204 "EHLO smtpauth2.cnaf.infn.it" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751613Ab2CaMfW (ORCPT ); Sat, 31 Mar 2012 08:35:22 -0400 In-Reply-To: <29021590.158.1333144756986.JavaMail.acathrow@0.0.0.0> Sender: kvm-owner@vger.kernel.org List-ID: Thank you very much, this solved my problem, not even 1 ping is lost! I did not find this hint in the documentation though. Really thanks again Riccardo On 3/30/12 11:58 PM, Andrew Cathrow wrote: > > ----- Original Message ----- >> From: "Riccardo Veraldi" >> To: kvm@vger.kernel.org >> Sent: Friday, March 30, 2012 5:45:47 PM >> Subject: live migration problems. >> >> Hello, >> I have problems with live migration. >> I have several VMs in a CentOS 6.2 cluster environment. >> >> When I migrate one virtual machine from nodeA to nodeB the migration >> goes smoothly but >> in the same time the VM is migrated an external ping cannot reach the >> VM. >> I ping the VM before migration and after the migration is done ping >> stops to work. >> This happens for some VM and does not happen for other VM. >> Apparently the VM are configured the same way so I can't understand >> why >> this is happening. >> If I migrate the VM back to the original physical node the ping start >> working again like if the switch did not >> realize the VM mac address changed switch port. >> To make things work always I Should make a ping from the VM console >> to >> whatever host and >> in this case the arp table is updated on the switch. >> The strange thing as I said is that some VM seems to always work >> after >> migration while other >> seems never to work untl they are migrated back to original cluster >> node. >> Any hints or suggestions ? > Make sure you have DELAY=0 set in the ifcfg file for the bridge on both hosts. > > >> thank you very much >> >> Rick >> >> -- >> To unsubscribe from this list: send the line "unsubscribe kvm" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html