[CentOS-virt] Seeing dropped packets / tcp retrans on latest 4.4.1-10el6
Hi All, Was troubleshooting some odd VM network issues and discovered that we're seeing dropped packets + retransmissions across multiple domU OS's and dom0 hardware platforms. xendev01 ~ # tshark -R "tcp.analysis.retransmission " -i vif7.0 Running as user "root" and group "root". This could be dangerous. Capturing on vif7.0 3.054257 xxx.xxx.xxx.196 -> xxx.xxx.xxx.145 SSH 110 [TCP Fast Retransmission] Encrypted response packet len=44 3.061949 xxx.xxx.xxx.196 -> xxx.xxx.xxx.145 SSH 1434 [TCP Fast Retransmission] Encrypted response packet len=1368 3.383880 xxx.xxx.xxx.196 -> xxx.xxx.xxx.145 SSH 1434 [TCP Fast Retransmission] Encrypted response packet len=1368 3.630911 xxx.xxx.xxx.196 -> xxx.xxx.xxx.145 SSH 1434 [TCP Fast Retransmission] Encrypted response packet len=1368 3.635964 xxx.xxx.xxx.196 -> xxx.xxx.xxx.145 SSH 1434 [TCP Fast Retransmission] Encrypted response packet len=1368 I've confirmed this is happening with linux, windows and pfsense (bsd) domU's. I've turned off every feature I can with ethtool on both the underlying bridge on the host, the vif's, and the eth's inside the domU's. I also see it on traffic inbetween vms on the same host. The domU sees packet errors on incoming traffic and outgoing looks fine, dumping on the dom0 indicates incoming packets are fine, but the reply from the domU is broken. This does not happen running the exact same VMs on some older xen 4.1.3 hosts. Reproduction is easy (for me at least), any burst of traffic will do it. I've just been running "ps auxf" over ssh to a vm to trigger. Since I'm seeing it on the host when I sniff the vif, this feels like a bug? - Nathan ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Where does virt-manager store config in CentOS 7.1?
Perfect!!! ... Thanks Nux!. On 04/14/2015 11:23 AM, Nux! wrote: Hi, Check dconf (dconf-editor) / org.virt-manager.virt-manager HTH Lucian -- Sent from the Delta quadrant using Borg technology! Nux! www.nux.ro - Original Message - From: "C. L. Martinez" To: "Discussion about the virtualization on CentOS" Sent: Tuesday, 14 April, 2015 10:51:30 Subject: Re: [CentOS-virt] Where does virt-manager store config in CentOS 7.1? On Tue, Apr 14, 2015 at 9:39 AM, Sven Kieske wrote: On 14/04/15 11:16, C. L. Martinez wrote: Hi all, Anyone knows where virt-manager stores user config files in CentOS 7.1?? I am not seeing anything in user's home directory Hi, well on my standard machine virt-manager just starts with root privileges, so the config is where I expect it to be: /etc/libvirt/qemu/$NAME.xml HTH -- Mit freundlichen Grüßen / Regards Sven Kieske Thanks Sven, but I am not referring to guests xml config files. I need to know where user's config resides. Example: connections to KVM hosts, preferences, etc... ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] Kubernetes 0.15.0 in virt7-testing repo
Hi, kubernetes-0.15.0-0.1.gitd02139d.el7 build is in virt7-testing repo [1] now. Please test and feedback. [1] http://cbs.centos.org/repos/virt7-testing/x86_64/os/ -- Navid IRC: nshaikh ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] CentOS 7 AMI Building
Hello, I'm new to this list, but I noticed a post from March 30th inquiring about the build scripts for the official CentOS7 AMIs. I'm also interested in this; I'm tasked with (unfortunately) spinning up some VMs in our corporate VMWare environment that are "as close as possible" to the official CentOS7 AMIs. I could attempt to reverse-engineer them and figure out all of the packages and settings, but it would be much easier if we could get access to the build scripts. I've searched as much as I know how to, and while I've found some related tooling for Docker and other services (i.e. on the CentOS GitHub account), I can't seem to find anything related to the AMIs. I know I looked into this a while ago for CentOS6, and was told that the 7 stuff would be made public. Does anyone have a pointer to it, or could someone at least post the kickstart and/or other relevant information? Thanks, Jason Antman ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Where does virt-manager store config in CentOS 7.1?
Hi, Check dconf (dconf-editor) / org.virt-manager.virt-manager HTH Lucian -- Sent from the Delta quadrant using Borg technology! Nux! www.nux.ro - Original Message - > From: "C. L. Martinez" > To: "Discussion about the virtualization on CentOS" > Sent: Tuesday, 14 April, 2015 10:51:30 > Subject: Re: [CentOS-virt] Where does virt-manager store config in CentOS > 7.1? > On Tue, Apr 14, 2015 at 9:39 AM, Sven Kieske wrote: >> >> >> On 14/04/15 11:16, C. L. Martinez wrote: >>> Hi all, >>> >>> Anyone knows where virt-manager stores user config files in CentOS >>> 7.1?? I am not seeing anything in user's home directory >> >> Hi, >> >> well on my standard machine virt-manager just starts with root >> privileges, so the config is where I expect it to be: >> /etc/libvirt/qemu/$NAME.xml >> >> HTH >> >> -- >> Mit freundlichen Grüßen / Regards >> >> Sven Kieske >> > > Thanks Sven, but I am not referring to guests xml config files. I need > to know where user's config resides. Example: connections to KVM > hosts, preferences, etc... > ___ > CentOS-virt mailing list > CentOS-virt@centos.org > http://lists.centos.org/mailman/listinfo/centos-virt ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Where does virt-manager store config in CentOS 7.1?
On Tue, Apr 14, 2015 at 9:39 AM, Sven Kieske wrote: > > > On 14/04/15 11:16, C. L. Martinez wrote: >> Hi all, >> >> Anyone knows where virt-manager stores user config files in CentOS >> 7.1?? I am not seeing anything in user's home directory > > Hi, > > well on my standard machine virt-manager just starts with root > privileges, so the config is where I expect it to be: > /etc/libvirt/qemu/$NAME.xml > > HTH > > -- > Mit freundlichen Grüßen / Regards > > Sven Kieske > Thanks Sven, but I am not referring to guests xml config files. I need to know where user's config resides. Example: connections to KVM hosts, preferences, etc... ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Where does virt-manager store config in CentOS 7.1?
On 14/04/15 11:16, C. L. Martinez wrote: > Hi all, > > Anyone knows where virt-manager stores user config files in CentOS > 7.1?? I am not seeing anything in user's home directory Hi, well on my standard machine virt-manager just starts with root privileges, so the config is where I expect it to be: /etc/libvirt/qemu/$NAME.xml HTH -- Mit freundlichen Grüßen / Regards Sven Kieske Systemadministrator Mittwald CM Service GmbH & Co. KG Königsberger Straße 6 32339 Espelkamp T: +49-5772-293-100 F: +49-5772-293-333 https://www.mittwald.de Geschäftsführer: Robert Meyer St.Nr.: 331/5721/1033, USt-IdNr.: DE814773217, HRA 6640, AG Bad Oeynhausen Komplementärin: Robert Meyer Verwaltungs GmbH, HRB 13260, AG Bad Oeynhausen ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] Where does virt-manager store config in CentOS 7.1?
Hi all, Anyone knows where virt-manager stores user config files in CentOS 7.1?? I am not seeing anything in user's home directory Thanks. ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
