[Openstack-operators] KVM Forum 2015 Call for Participation
= KVM Forum 2015: Call For Participation August 19-21, 2015 - Sheraton Seattle - Seattle, WA (All submissions must be received before midnight May 1, 2015) = KVM is an industry leading open source hypervisor that provides an ideal platform for datacenter virtualization, virtual desktop infrastructure, and cloud computing. Once again, it's time to bring together the community of developers and users that define the KVM ecosystem for our annual technical conference. We will discuss the current state of affairs and plan for the future of KVM, its surrounding infrastructure, and management tools. Mark your calendar and join us in advancing KVM. http://events.linuxfoundation.org/events/kvm-forum/ This year, the KVM Forum is moving back to North America. We will be colocated with the Linux Foundation's LinuxCon North America, CloudOpen North America, ContainerCon and Linux Plumbers Conference events. Attendees of KVM Forum will also be able to attend a shared hackathon event with Xen Project Developer Summit on August 18, 2015. We invite you to lead part of the discussion by submitting a speaking proposal for KVM Forum 2015. http://events.linuxfoundation.org/cfp Suggested topics: KVM/Kernel * Scaling and optimizations * Nested virtualization * Linux kernel performance improvements * Resource management (CPU, I/O, memory) * Hardening and security * VFIO: SR-IOV, GPU, platform device assignment * Architecture ports QEMU * Management interfaces: QOM and QMP * New devices, new boards, new architectures * Scaling and optimizations * Desktop virtualization and SPICE * Virtual GPU * virtio and vhost, including non-Linux or non-virtualized uses * Hardening and security * New storage features * Live migration and fault tolerance * High availability and continuous backup * Real-time guest support * Emulation and TCG * Firmware: ACPI, UEFI, coreboot, u-Boot, etc. * Testing Management and infrastructure * Managing KVM: Libvirt, OpenStack, oVirt, etc. * Storage: glusterfs, Ceph, etc. * Software defined networking: Open vSwitch, OpenDaylight, etc. * Network Function Virtualization * Security * Provisioning * Performance tuning === SUBMITTING YOUR PROPOSAL === Abstracts due: May 1, 2015 Please submit a short abstract (~150 words) describing your presentation proposal. Slots vary in length up to 45 minutes. Also include in your proposal the proposal type -- one of: - technical talk - end-user talk Submit your proposal here: http://events.linuxfoundation.org/cfp Please only use the categories presentation and panel discussion You will receive a notification whether or not your presentation proposal was accepted by May 29, 2015. Speakers will receive a complimentary pass for the event. In the instance that your submission has multiple presenters, only the primary speaker for a proposal will receive a complementary event pass. For panel discussions, all panelists will receive a complimentary event pass. TECHNICAL TALKS A good technical talk should not just report on what has happened over the last year; it should present a concrete problem and how it impacts the user and/or developer community. Whenever applicable, focus on work that needs to be done, difficulties that haven't yet been solved, and on decisions that other developers should be aware of. Summarizing recent developments is okay but it should not be more than a small portion of the overall talk. END-USER TALKS One of the big challenges as developers is to know what, where and how people actually use our software. We will reserve a few slots for end users talking about their deployment challenges and achievements. If you are using KVM in production you are encouraged submit a speaking proposal. Simply mark it as an end-user talk. As an end user, this is a unique opportunity to get your input to developers. HANDS-ON / BOF SESSIONS We will reserve some time for people to get together and discuss strategic decisions as well as other topics that are best solved within smaller groups. These sessions will be announced during the event. If you are interested in organizing such a session, please add it to the list at http://www.linux-kvm.org/page/KVM_Forum_2015_BOF Let people you think might be interested know about it, and encourage them to add their names to the wiki page as well. Please try to add your ideas to the list before KVM Forum starts. PANEL DISCUSSIONS If you are proposing a panel discussion, please make sure that you list all of your potential panelists in your abstract. We will request full biographies if a panel is accepted. === HOTEL / TRAVEL === KVM Forum 2015 will be taking place at the Sheraton Seattle Hotel. We are pleased to offer attendees a discounted room rate of US$199/night (plus applicable taxes) which includes wifi in your
Re: [Openstack-operators] MTU on router interface (neutron GRE) without jumbo
Thanks! But those examples are for same MTU for client and server. If we have Client: 1500 router in the middle 1500 OVS/GRE: 1458 server: 1458 For tcp this is ok. But can it hurt somehow other protocols? UDP, RST, etc? On 03/14/2015 08:52 PM, Joseph Bajin wrote: The size of MTU only really matters for the server and client. The between connections need to be larger than the packets that are being sent. Scenario 1: Server - 1400 MTU Client - 1400 MTU Switches - 9216 MTU OVS - 1500 MTU Result: Successful - Traffic passes without any issue Scenario 2: Server - 1520 MTU Client - 1520 MTU Switches - 1516 MTU OVS - 1500 MTU Result: Failure - Traffic will have issues passing through. So just make sure everything in-between is higher than your server and client. --Joe On Fri, Mar 13, 2015 at 9:28 AM, George Shuklin george.shuk...@gmail.com mailto:george.shuk...@gmail.com wrote: Hello. We've hit badly changes in behaviour of OVS when we switched from 3.08 to 3.13 kernel. When runs on 3.11 or above, OVS starts to use kernel GRE services. And they copy DNF (do not fragment) flag from encapsulated packet to GRE packet. And this mess up all things, because ICMP messages about dropped GRE never reach neither source nor destination of underlying TCP. We've fixed problems with MTU by using option for DHCP for dnsmasq. This lower MTU inside instances. But there are routers (router namespaces) and they are still using 1500 bytes MTU. I feel like this can cause problems with some types of traffic, when client (outside of openstack) sending DNF packets to instance (via floating) and that packet is silently dropped. 1) Is those concerns have any real life implication? TCP should take in account MTU on server and works smoothly, but other protocols? 2) Is there any way to lower MTU inside router namespace? Thanks. P.S. Jumbo frames is not an option due reasons outside of our reach. ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org mailto:OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
Re: [Openstack-operators] [Neutron][Nova] No Valid Host when booting new VM with Public IP
Hi Adam For external network you should use floating ips to access externally to your instances if I understood correctly. Regards Em 16/03/2015 20:56, Adam Lawson alaw...@aqorn.com escreveu: Got a strange error and I'm really hoping to get some help with it since it has be scratching my head. When I create a VM within Horizon and select the PRIVATE network, it boots up great. When I attempt to create a VM within Horizon and include the PUBLIC network (either by itself or with the private network), it fails with a No valid host found error. I looked at the nova-api and the nova-scheduler logs on the controller and the most I've found are errors/warnings binding VIF's but I'm not 100% certain it's the root cause although I believe it's related. I didn't find any WARNINGS or ERRORS in the compute or network node. Setup: - 1 physical host running 4 KVM domains/guests - 1x Controller - 1x Networ - 1x Volume - 1x Compute *Controller Node:* nova.conf (http://pastebin.com/q3e9cntH) - neutron.conf (http://pastebin.com/ukEVzBbN) - ml2_conf.ini (http://pastebin.com/w10jBGZC) - nova-api.log (http://pastebin.com/My99Mg2z) - nova-scheduler (http://pastebin.com/Nb75Z6yH) - neutron-server.log (http://pastebin.com/EQVQPVDF) *Network Node:* - l3_agent.ini (http://pastebin.com/DBaD1F5x) - neutron.conf (http://pastebin.com/Bb3qkNi7) - ml2_conf.ini (http://pastebin.com/xEC1Bs9L) *Compute Node:* - nova.conf (http://pastebin.com/K6SiE9Pw) - nova-compute.conf (http://pastebin.com/9Mz30b4v) - neutron.conf (http://pastebin.com/Le4wYRr4) - ml2_conf.ini (http://pastebin.com/nnyhC8mV) *Back-end:* Physical switch Any thoughts on what could be causing this? *Adam Lawson* AQORN, Inc. 427 North Tatnall Street Ste. 58461 Wilmington, Delaware 19801-2230 Toll-free: (844) 4-AQORN-NOW ext. 101 International: +1 302-387-4660 Direct: +1 916-246-2072 ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
Re: [Openstack-operators] [Neutron][Nova] No Valid Host when booting new VM with Public IP
check out if you allowed nova to use external networks. Somewhere around api-paste.ini, with 'external' in the name of permission. If nova compute rejects binding, it will rejects to start instance, and pass that error to nova-scheduler, and it will return 'NVHF'. On 03/16/2015 10:52 PM, Adam Lawson wrote: Got a strange error and I'm really hoping to get some help with it since it has be scratching my head. When I create a VM within Horizon and select the PRIVATE network, it boots up great. When I attempt to create a VM within Horizon and include the PUBLIC network (either by itself or with the private network), it fails with a No valid host found error. I looked at the nova-api and the nova-scheduler logs on the controller and the most I've found are errors/warnings binding VIF's but I'm not 100% certain it's the root cause although I believe it's related. I didn't find any WARNINGS or ERRORS in the compute or network node. Setup: * 1 physical host running 4 KVM domains/guests o 1x Controller o 1x Networ o 1x Volume o 1x Compute *Controller Node:* nova.conf (http://pastebin.com/q3e9cntH) * neutron.conf (http://pastebin.com/ukEVzBbN) * ml2_conf.ini (http://pastebin.com/w10jBGZC) * nova-api.log (http://pastebin.com/My99Mg2z) * nova-scheduler (http://pastebin.com/Nb75Z6yH) * neutron-server.log (http://pastebin.com/EQVQPVDF) *Network Node:* * l3_agent.ini (http://pastebin.com/DBaD1F5x) * neutron.conf (http://pastebin.com/Bb3qkNi7) * ml2_conf.ini (http://pastebin.com/xEC1Bs9L) *Compute Node:* * nova.conf (http://pastebin.com/K6SiE9Pw) * nova-compute.conf (http://pastebin.com/9Mz30b4v) * neutron.conf (http://pastebin.com/Le4wYRr4) * ml2_conf.ini (http://pastebin.com/nnyhC8mV) *Back-end:* Physical switch Any thoughts on what could be causing this? */ Adam Lawson/* AQORN, Inc. 427 North Tatnall Street Ste. 58461 Wilmington, Delaware 19801-2230 Toll-free: (844) 4-AQORN-NOW ext. 101 International: +1 302-387-4660 Direct: +1 916-246-2072 ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
Re: [Openstack-operators] [Neutron][Nova] No Valid Host when booting new VM with Public IP
On Wed, Mar 18, 2015 at 6:29 PM, Adam Lawson alaw...@aqorn.com wrote: What I'm trying to do is force OpenStack to do something it normally doesn't do for the sake of learning and experimentation. I.e. bind a public network to a VM so it can be accessed outside the cloud when floating IP's are normally required. I know there are namespace issues at play which may prevent this from working, just trying to scope the boundaries of what I can and cannot do really. By default it's not possible to attach a VM vif to an external network, even if this is shared. However, playing around with the policy.json file I could do it. Still, I'm unable to only allow creating vifs on *one* of multiple external networks I have. Here is how I did: http://www.s3it.uzh.ch/blog/openstack-neutron-vlan/ What Kris told you about the error you get is right: even if you get a No valid host error, the *real* error is to be found in the compute node, and it's related to the inability of the compute node to attach the VM interface to the external network. .a. -- antonio.s.mess...@gmail.com antonio.mess...@uzh.ch +41 (0)44 635 42 22 S3IT: Service and Support for Science IT http://www.s3it.uzh.ch/ University of Zurich Winterthurerstrasse 190 CH-8057 Zurich Switzerland ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
Re: [Openstack-operators] [Neutron][Nova] No Valid Host when booting new VM with Public IP
We have that configuration and it works fine. Even better than L3 NAT on neutron routers. Tenant's VM works perfect with external networks and white IPs, but you should make external network available on each compute node (ml2_conf.ini). On 03/18/2015 07:29 PM, Adam Lawson wrote: What I'm trying to do is force OpenStack to do something it normally doesn't do for the sake of learning and experimentation. I.e. bind a public network to a VM so it can be accessed outside the cloud when floating IP's are normally required. I know there are namespace issues at play which may prevent this from working, just trying to scope the boundaries of what I can and cannot do really. */ Adam Lawson/* AQORN, Inc. 427 North Tatnall Street Ste. 58461 Wilmington, Delaware 19801-2230 Toll-free: (844) 4-AQORN-NOW ext. 101 International: +1 302-387-4660 Direct: +1 916-246-2072 On Wed, Mar 18, 2015 at 7:08 AM, Pedro Sousa pgso...@gmail.com mailto:pgso...@gmail.com wrote: Hi Adam For external network you should use floating ips to access externally to your instances if I understood correctly. Regards Em 16/03/2015 20:56, Adam Lawson alaw...@aqorn.com mailto:alaw...@aqorn.com escreveu: Got a strange error and I'm really hoping to get some help with it since it has be scratching my head. When I create a VM within Horizon and select the PRIVATE network, it boots up great. When I attempt to create a VM within Horizon and include the PUBLIC network (either by itself or with the private network), it fails with a No valid host found error. I looked at the nova-api and the nova-scheduler logs on the controller and the most I've found are errors/warnings binding VIF's but I'm not 100% certain it's the root cause although I believe it's related. I didn't find any WARNINGS or ERRORS in the compute or network node. Setup: * 1 physical host running 4 KVM domains/guests o 1x Controller o 1x Networ o 1x Volume o 1x Compute *Controller Node:* nova.conf (http://pastebin.com/q3e9cntH) * neutron.conf (http://pastebin.com/ukEVzBbN) * ml2_conf.ini (http://pastebin.com/w10jBGZC) * nova-api.log (http://pastebin.com/My99Mg2z) * nova-scheduler (http://pastebin.com/Nb75Z6yH) * neutron-server.log (http://pastebin.com/EQVQPVDF) *Network Node:* * l3_agent.ini (http://pastebin.com/DBaD1F5x) * neutron.conf (http://pastebin.com/Bb3qkNi7) * ml2_conf.ini (http://pastebin.com/xEC1Bs9L) *Compute Node:* * nova.conf (http://pastebin.com/K6SiE9Pw) * nova-compute.conf (http://pastebin.com/9Mz30b4v) * neutron.conf (http://pastebin.com/Le4wYRr4) * ml2_conf.ini (http://pastebin.com/nnyhC8mV) *Back-end:* Physical switch Any thoughts on what could be causing this? */ Adam Lawson/* AQORN, Inc. 427 North Tatnall Street Ste. 58461 Wilmington, Delaware 19801-2230 Toll-free: (844) 4-AQORN-NOW ext. 101 International: +1 302-387-4660 tel:%2B1%20302-387-4660 Direct: +1 916-246-2072 tel:%2B1%20916-246-2072 ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org mailto:OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
Re: [Openstack-operators] Hypervisor decision
most openstack environments at kvm, so if you want to stick with the herd, that's the way to go. On Wed, Mar 18, 2015 at 5:53 PM, Abel Lopez alopg...@gmail.com wrote: Interesting topic, since you're already running Hyper-v and ESX, I'm inferring that your workload is heavy on windows VMs. If you're doing majority windows, and minority linux, stick with hyper-v. The benchmarks I've read show that windows VMs run fastest on hyper-v VS all others. If you expect an even split, it might make sense to create Host Aggregates of various hypervisiors like hyper-v and KVM, and utilize extra-specs in the flavors and guest images to aid in scheduling, for example Windows images launch on the hyper-v pool On Mar 18, 2015, at 2:41 PM, Vytenis Silgalis vsilga...@outlook.com wrote: Hello, I'm looking to champion openstack at my company, we currently run both a small hyper-v cluster and 3 VMware clusters. However we are not married to any specific hypervisor. What I'm looking for is recommendations for which hypervisor we should look at for our openstack environments and the pros/con's people have run into with the various hypervisors supported by openstack. Thanks, Vytenis ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
Re: [Openstack-operators] Restart Services when Rabbit Croaks
Thanks Kris for the tip! On Tue, Mar 17, 2015 at 4:27 PM, David Medberry openst...@medberry.net wrote: Thanks Kris! ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
Re: [Openstack-operators] [Neutron][Nova] No Valid Host when booting new VM with Public IP
What I'm trying to do is force OpenStack to do something it normally doesn't do for the sake of learning and experimentation. I.e. bind a public network to a VM so it can be accessed outside the cloud when floating IP's are normally required. I know there are namespace issues at play which may prevent this from working, just trying to scope the boundaries of what I can and cannot do really. *Adam Lawson* AQORN, Inc. 427 North Tatnall Street Ste. 58461 Wilmington, Delaware 19801-2230 Toll-free: (844) 4-AQORN-NOW ext. 101 International: +1 302-387-4660 Direct: +1 916-246-2072 On Wed, Mar 18, 2015 at 7:08 AM, Pedro Sousa pgso...@gmail.com wrote: Hi Adam For external network you should use floating ips to access externally to your instances if I understood correctly. Regards Em 16/03/2015 20:56, Adam Lawson alaw...@aqorn.com escreveu: Got a strange error and I'm really hoping to get some help with it since it has be scratching my head. When I create a VM within Horizon and select the PRIVATE network, it boots up great. When I attempt to create a VM within Horizon and include the PUBLIC network (either by itself or with the private network), it fails with a No valid host found error. I looked at the nova-api and the nova-scheduler logs on the controller and the most I've found are errors/warnings binding VIF's but I'm not 100% certain it's the root cause although I believe it's related. I didn't find any WARNINGS or ERRORS in the compute or network node. Setup: - 1 physical host running 4 KVM domains/guests - 1x Controller - 1x Networ - 1x Volume - 1x Compute *Controller Node:* nova.conf (http://pastebin.com/q3e9cntH) - neutron.conf (http://pastebin.com/ukEVzBbN) - ml2_conf.ini (http://pastebin.com/w10jBGZC) - nova-api.log (http://pastebin.com/My99Mg2z) - nova-scheduler (http://pastebin.com/Nb75Z6yH) - neutron-server.log (http://pastebin.com/EQVQPVDF) *Network Node:* - l3_agent.ini (http://pastebin.com/DBaD1F5x) - neutron.conf (http://pastebin.com/Bb3qkNi7) - ml2_conf.ini (http://pastebin.com/xEC1Bs9L) *Compute Node:* - nova.conf (http://pastebin.com/K6SiE9Pw) - nova-compute.conf (http://pastebin.com/9Mz30b4v) - neutron.conf (http://pastebin.com/Le4wYRr4) - ml2_conf.ini (http://pastebin.com/nnyhC8mV) *Back-end:* Physical switch Any thoughts on what could be causing this? *Adam Lawson* AQORN, Inc. 427 North Tatnall Street Ste. 58461 Wilmington, Delaware 19801-2230 Toll-free: (844) 4-AQORN-NOW ext. 101 International: +1 302-387-4660 Direct: +1 916-246-2072 ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
[Openstack-operators] Hypervisor decision
Hello, I'm looking to champion openstack at my company, we currently run both a small hyper-v cluster and 3 VMware clusters. However we are not married to any specific hypervisor. What I'm looking for is recommendations for which hypervisor we should look at for our openstack environments and the pros/con's people have run into with the various hypervisors supported by openstack. Thanks, Vytenis ___ OpenStack-operators mailing list OpenStack-operators@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
