Friday, 2011-05-13

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AXiS_SharKhow does multi-tenancy work in openstack?00:19
AXiS_SharKis it just users and projects?00:19
AXiS_SharKis there a high-level architecture diagram somewhere?00:19
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nelsongholt and creiht: I'm working on checking my wikipedia code into our SVN, which will make it more public than it's been.00:58
nelsonI've got some needed changes to common/ which need to get into Swift.00:58
nelsonShould I just propose it as a patch, or do you want to give it a sanity/style look-over first?00:59
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nelsonIt's a brand-new function, for writing chunks, so it won't break anything. Safe enough to include in the next version.01:00
gholtWhichever you prefer, we'll take it. :)01:00
creihtnelson: easiest way is to propose as a merge proposal, and that will give us an easy way to look it over01:00
nelsonOkay, will do.01:00
nelsonHopefully you won't spew chunks all over it. :)01:00
gholtHeheh, if you have launchpad account, signed the CLA thingie and all that, doing a merge prop is the /best/ way.01:00
nelsonyep, I already have dox in 1.301:01
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gholtAh yeah, coolio then01:01
gholtAnd don't worry, every merge prop gets ripped up. Well, most every one. :)01:01
gholtI mean that in a good way of course, not just silly critiques dangit. ;)01:02
nelsonI'll be sure to leave a HT in there just to give you something to complain about.01:03
gholt\o/ Make sure you leave a PEP8 fail somewhere too; to see if we're doing our jobs.01:03
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nelsonIt's pretty low-tech -- just an unwravelling of put_object into a class with three functions: __init__, write, and close() And I suppose I ought to have a destructor which calls close() just in case they don't.01:05
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HugoKuoStill thinking about  Nova-network  HA :<03:23
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alex_openstacki use euca-run-instances ami-47030828 -k mykey -t m1.tiny04:22
alex_openstackfor single node mode04:22
alex_openstackbut can not running04:22
alex_openstackINSTANCE        i-00000008      ami-47030828     shutdown        mykey (dubproject, cgtcloud)    0               m1.tiny 2011-05-13T04:20:50Z    nova04:22
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John____Hi, I have download virtual box image on this link:, but failed to boot, Error: alert /dev/mapper/ubuntu-root does not exist, dropping to a shell, anyone have idea?04:41
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boncoshi ... how to setup staticweb in swift ?07:17
dobberHi. I just configured swift. Can I upload a big file that is stored on different servers at the same time. like chunk1 on storage6, chunk2 on storage3 etc07:21
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dobberis XenServer 5.6 supported ?07:28
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dobberFull openvz support for nova07:36
dobberThis was reported as started work in Feb, is it ready ?07:36
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dobberwhat is approximate ETA for diablo ?07:43
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uvirtbotNew bug: #782050 in swift "Add Child Node to <subdir> in container listings with delimiters" [Undecided,New]
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dobberok, i got permission to use 5 servers and setup proof of concept :)08:01
dobbergood buy VMs ;)08:01
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dobberhow can i monitor the daily patches in the source tree ?08:14
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dobberwhat about hardware recommendations ? witch node, what cpu/ram needs ?08:36
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HugoKuobetter and better :>08:37
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HugoKuolooking for network HA solution09:10
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radekI'm trying to attach cdrom image to existing instance by editing libvirt.xml in the instance folder but after reboot I can't see any change09:44
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sorenradek: That file is only read once: At the first instantiation time.10:16
sorenradek: If you want to edit it later on, use "virsh edit <instance name>"10:17
radekok thanks so only way is to change libvirt.xml.template ?10:17
sorenNo, that'll do even less :)10:17
soren10:17 <+soren> radek: If you want to edit it later on, use "virsh edit <instance name>"10:18
radekvirsh edit and then reboot instance ?10:18
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sorenradek: Yeah.10:19
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HugoKuodoes nova support instance or volume snapshot ?10:44
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uvirtbotNew bug: #782138 in openstack-manuals "README text in rc-maven-cloud-docs dir just says, "Don't forget to put this under a license"" [Undecided,New]
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RichiH#782138 is somewhat ironic, isn't it? ;)11:40
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uvirtbotNew bug: #782152 in nova "Documentation typos" [Undecided,New]
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arb10can anyone point me in the direction of a reference architecture diagram for a production swift cluster.  The admin guide shows some good information but doesnt go into much detail regarding the network12:17
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alekibangoarb10: you need at least one proxy node... and how many other nodes as you wish, at least 5 for every service13:21
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alekibangominimum is 3, but 5 makes sense13:22
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arb10Was thinking for a 5 zone production 1 PetaByte cluster I'd need 10 storage nodes per zone (so thats 50 nodes) with each node roughly having 100 TByte storage.  Was also thinking having two pools of 3 proxy nodes, load balanced.  is this overkill13:32
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creihtarb10: that would give you around 1.3-1.5 usable PB for customer data13:35
creiht(assuming that you limit the storage to 80-85% utilization13:36
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creiht3 proxy nodes should get you to at least 3000 requests/sec sustained13:36
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creihtand if you need more requests, you can just add more proxies13:37
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arb10creiht: what about memory requirements for proxies, is 24 GB enough?13:49
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gholtarb10: I think creiht had to run, but yeah 24G is plenty.14:20
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uvirtbotNew bug: #782237 in nova "logging loop when drivers don't implement set_admin_password" [Undecided,In progress]
nhmHugo: for snapshoting there is this bug for KVM:
uvirtbotLaunchpad bug 750544 in nova "Snapshotting VM instance failing for KVM" [High,Fix committed]14:42
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arb10is there any documentation on how replication on the Auth Server.  For instance if i have 3 nodes each running a proxy and auth server and I create a new user (or update a password), how do the user details get replicated across all nodes?14:54
gholtarb10: Are you talking about swauth? If so, swauth stores its information in Swift itself as objects. So the usual object replication covers that.14:56
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arb10gholt: yes swauth, that makes sense :)15:00
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dobber(swift) so, i got 3 storage nodes, 2 of them have only one disk, 1 has 11 disks. do you have an idea for an ok-ish proof of concept setup15:03
dobberlike replica 215:03
gholtAre all the disks the same size?15:04
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dobbermaybe i'll make replica 3 with 3 disks (one on each storage node)15:05
dobberfor starters15:05
gholtYeah, that might make more sense to prototype.15:06
gholtAnd just ignore that you have extra drives.15:06
gholtThere are ways to make use of oddly balanced nodes and drives, but I doubt you really want to fiddle with that sort of thing right off the bat.15:07
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dobberyou are right15:08
dobberi'll need strange configurations - later ;)15:08
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CloudChrisHello together - is there any "Openstack in a Box" solution to quickly have a look at the whole stack on 1 machine?15:16
notmynameCloudChris: are you looking for object storage or compute or both?15:18
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CloudChrishi, I am looking for the whole package :)15:19
CloudChrisof course I can install it in a few virtual machines, but a live CD or something like that would be finde15:19
notmynamefor swift there is to run an entire swift cluster in one VM for testing/dev purposes15:21
notmynamenot sure what there is like that on the nova side15:21
openstackjenkinsProject nova build #894: SUCCESS in 2 min 44 sec:
openstackjenkinsTarmac: Update the compute manager so that it breaks out of a loop if set_admin_password is not implemented by the driver. This avoids excessively logging NotImplementedError exceptions.15:23
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openstackjenkinsProject nova build #895: SUCCESS in 2 min 41 sec:
openstackjenkinsTarmac: Lost a flag pulling from another branch. Whoops.15:31
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CloudChris^^ thankx, I#ll check that15:33
uvirtbotCloudChris: Error: "^" is not a valid command.15:33
CloudChristhanks, ill check that vishy15:33
vishyCloudChris: or if you are more into bleeding edge trunk code, you can check out:
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jaypipesfriggin HVAC guy better get here soon... I think I'm melting.15:39
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boncosHi, how to setup "staticweb" (public container) in swift ?15:46
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annegentleboncos: here's the doc I could find on it - sorry I don't know much about the operations side.15:52
boncosaahh, thx for pointing to that docs annegentle :)15:53
creihtarb10: and yeah the proxies are mostly cpu bound15:54
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katkeehello, i have created and terminated 32 instances on a 32 ip range, now i cannot create instances anymore, any ideas? the ip seems all "frozen"...15:59
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katkeeit works again... just had to wait a certain amount of time for ip to be "freed"16:04
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openstackjenkinsProject nova build #896: SUCCESS in 2 min 38 sec:
openstackjenkinsTarmac: Make set_admin_password non-blocking to API.16:08
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boncos!ping gholt16:17
notmynameboncos: he just went to lunch16:19
boncosnotmyname, ow...thanks16:19
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jaypipeskpepple: hey, just read Excellent article, man.16:30
dubsquared+1, and OmniGraffle = win16:31
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jaypipesdubsquared: :)16:32
dubsquaredjaypipes:  hi, friend!  how is life?16:33
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jaypipesdubsquared: good! trying to wrap up the new Glance versioned API stuff. In Greece all next week, so trying to get a bit ahead of schedule for D1 release.16:34
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dubsquaredjaypipes: i see, living the tough life, traveling to Greece ...16:34
dubsquaredjaypipes:  you deserve it though, hope you have a great time!16:35
jaypipesdubsquared: hehe, you know it!16:35
jaypipesdubsquared: me too :) never been.16:35
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blamarsirp_, If you get a second can you check this again?
sirp_blamar: sure thing16:48
blamarmuch appreciated16:49
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openstackjenkinsProject nova build #897: SUCCESS in 2 min 39 sec:
openstackjenkinsTarmac: XenAPI was not implemented to allow for multiple simultaneous XenAPI requests.  A single XenAPIConnection (and thus XenAPISession) is used for all queries.  XenAPISession's wait_for_task method would set a self.loop = for looping calls to _poll_task until task completion.  Subsequent (parallel) calls to wait_for_task for another query would overwrite this.  XenAPISession._poll_task was pulled into the XenAPISession16:58
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BK_manhi all!16:59
BK_mando I need to configure a network switch to be able to run several hosts (multi-node Nova) with VlanManager?17:00
BK_manI can ping and ssh to instances which are hosted by cloud controller, but can't go to instances which are residing on both compute nodes.17:01
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vishyBK_man: you have to configure the vlans on your switch17:04
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BK_manvishy: nice. Can't find it on wiki.17:04
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vishyBK_man: essentially it means allowing vlan trunking on the ports that your hosts are using for vlan100 + X17:05
vishywhere X is the number of projects you want to support17:05
vishyBK_man: perhaps a general comment should be added to the wiki, but the actual config is switch-specific17:05
BK_manvishy: thanks, now going to Cisco guys...17:05
openstackjenkinsProject nova build #898: SUCCESS in 2 min 43 sec:
openstackjenkinsTarmac: I'm assuming that openstack doesnt work with python < 2.6 here (which I read somewhere on the wiki).  This patch will check to make sure python >= 2.6 is installed, and also allow it to work with python 2.7 (and greater in the future).17:06
openstackjenkinsIn order for nova to work with python 2.7, it needs Cheetah 2.4.4, which also works fine in python 2.6 (all tests passed with Cheetah 2.4.4 and python 2.6 for me).17:06
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JSharpHey folks :) I've got a FlatDHCP setup, and the DHCP offers don't seem to be leaving the dhcp server, I'm looking at packet traces and I see the requests/discovers, but no offers, but in the syslog file I see the DHCP server offering the IP to the right MAC17:13
JSharpoddly enough, vms on the machine acting as the dhcp server can receive leases just fine17:14
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BK_manquick question: InstanceLimitExceeded: Instance quota exceeded. You can only run 0 more instances of this type. How to allow more than 10 instances?17:29
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boncoshi, when i configure staticweb in swift, what URL is i can access to public container ?17:43
vishyBK_man: nova-manage quota instances 10017:44
vishyBK_man: er sorry, nova-manage project quota <proj_id> instances 10017:44
vishyBK_man: and nova-manage project quota <proj_id> cores 40017:45
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boncosah .. forget it .. i found it17:51
vishyJSharp: do you have --flat_interface and --my_ip set in your flagfile?17:52
koolhead17hi all17:52
JSharpvishy, yes, I do17:52
JSharplet me pastie my nova.conf17:52
vishyis it possible another dhcp server is handing out ips?17:53
JSharpvishy, not on that network, no.
JSharpthere's an eth0 control plane, with a public/flat_interface=eth117:54
vishyJSharp: why not use flat interface on eth0?17:55
vishyJSharp: in any case you may need --fixed_range=
JSharpvishy, what does the fixed_range do?17:56
vishyand clear out iptables rules and try again, I'm thinking you're getting conflicts with your host ips17:56
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JSharpvishy, okay :)17:56
vishyfixed range is to set up snatting rules17:56
JSharpthat might explain why everything is just going off into space17:56
JSharpthanks :)17:56
JSharpI'll give it a try17:57
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vishyJSharp: I don't see anything else in there that looks troublesome, but you might want to do a iptables -L -n -v and an iptables -t nat -L -n -v and see if anything looks weird.17:57
vishyJSharp: I've had times where I create rules as i'm setting things up and forget to flush them in between conf changes17:58
vishygl i have to head out17:58
JSharpvishy, thanks :) I'm doing automated builds, so I start from scratch when I have to make huge changes17:59
vishyJSharp: one other thing.  In my experience if you use the same interface for flat network and public network, you have to turn promisc on on br100 in order to get public routing from vms on the other compute hosts.  Also make sure ip_forward is set on your network host.18:01
JSharpyep :)18:01
vishyJSharp: the promisc br100 only needs to be set on the network host18:01
JSharpthank you18:01
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openstackjenkinsProject nova build #899: SUCCESS in 2 min 44 sec:
openstackjenkinsTarmac: Adds proper error handling for images that can't be found and a test for deregister image.18:18
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JSharpvishy, thanks for the hint.. I'm no longer losing outside connectivity to my compute nodes (now they can reach the wider internet), but I'm still not getting any dhcp server response (I can see the message coming into the logs for dnsmasq but nothing coming out of the ip stack on to the wire)18:25
JSharpwireshark on the compute node shows the offer packets being generated.. so it's probably getting blocked in iptables somewhere18:27
JSharpbut I also see ARP reqs.18:27
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uvirtbotNew bug: #782328 in swift "Improve logging in object auditor" [Undecided,New]
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arb10is there a mechanism to change a password in swauth?19:08
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vishyJSharp: how do you know the compute nodes can get out if they aren't getting dhcp?19:37
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uvirtbotNew bug: #782364 in nova "better to send gratuitous ARPs to support HA" [Undecided,New]
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JSharpvishy, well, sniffing the eth1 interface on the network node yields dhcp requests/discovery packets, so they're getting out, and then the network node is responding to them.. my nova-network-floating-snat rule chain is empty on the network machine20:00
JSharpsorry, if that's not related.. maybe I should post an iptables-save20:00
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JSharpvishy, here's the iptables-save output:
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arb10anyone know if you can change a users password in swift once its been created?20:06
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lele_Hi all, someone can help me to figure out a network issue , i cant connect to my instances20:07
lele_Im able to launch them well, y see them running but i cant ping or ssh to i20:09
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vishyJSharp: do the offers show up on eth1/br100  on the compute host?20:21
JSharpvishy, no, they don't oddly20:21
JSharpbut they do show up on the eth1/br100 of the network host20:21
vishythat seems very strange20:21
vishyJSharp: is eth1 dhcping?20:22
JSharpeth1 has no IP assigned20:22
JSharpon either box20:22
JSharplet me do an iptables-save of the compute node that can't get dhcp stuff20:23
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vishyi have seen messages fail sometimes because ip addresses are in the wrong order on br10020:24
vishyso it sends the offer to the wrong broadcast address20:24
vishythat is the only thing i can think of20:24
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JSharpvishy, iptables bits
JSharplet me check order of ips on br10020:25
vishy-A nova-network-POSTROUTING -s -d -j ACCEPT20:25
vishythat could cause some problems20:25
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JSharpip addr output for machine having issues,
JSharpand for network node:
vishyalso seems a little odd
vishythat you are using a /2520:28
vishyinstead of a /2420:28
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JSharpvishy, indeed... I don't know why it's doing that... perhaps I should delete that network and recreate?20:28
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vishyprobably because you are doing the same error everyone else does20:29
vishynova-manage network create 1 25620:29
vishyeveryone puts in 255 for some reason20:29
vishyi think i see your problem20:30
vishyi don't see an ip on br10020:30
vishyah nm there it is20:31
JSharpvishy, thanks for your help, this has been driving me a bit spare :)20:32
vishyi would definitely switch to the full /24 instead of the /2520:32
vishybut i'm not sure what could be causing the packets to not get back to the other node20:33
vishyif you do brctl show on both machines20:33
vishyit shows br100 bridged into eth1 right?20:33
vishyoh by the way, since you have no ips on eth0, how are these getting out to the net?20:33
vishyer no ips on eth1 that is20:34
JSharpthe space is natted20:34
vishyit looks like you should be using --public_interface=eth120:34
JSharpam I not? *checks*20:35
JSharpI am20:35
vishysorry eth020:35
vishyyour "public" needs to go out eth020:35
vishyunless you have some other route out on eth1?20:35
JSharpwell, I have a /24 floating IP block I'd like to assign to instances20:36
JSharpotherwise, I want them on rfc1918 only20:36
vishyok so the network host generally has a public ip20:36
vishyand the public_interface is the interface that that ip is on20:36
JSharpah, I see20:37
vishyif you have a private management network20:37
vishygenerally you put the intravm communication on the private interface20:37
vishyat least that is how we have always done it20:37
JSharpright right20:37
JSharpso, the floating public IPs are assigned to vms, but are routed through the network box in this configuration?20:38
vishythey are natted to the private range20:39
JSharpah, I see...20:39
JSharpis the a way to avoid that, since that might become a bottleneck at some point?20:40
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lele_vishy, im having a similar issue to JSharp, could you trough me a ladder ? , im lost20:42
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JSharpthe Vlan manager might do the trick20:44
vishyJSharp: no, can't avoid it yet.  People are working on various other approaches that would allow natting straight through20:44
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vishycompute hosts20:44
JSharpI see20:45
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Tvsmoser: yt?20:46
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JSharpvishy, I checked my recipes and yes, 255 was getting put in20:53
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sam_itxhi, learning / looking in to openstack architecture and details. have bunch of questions. first one, how authentication works between different components ? i.e once authenticated, how does "storage server" for example, know that the request is authenticated ?21:16
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notmynamesam_itx: (assuming swift because you mentioned "storage server") each authenticated request to a swift cluster includes an auth token. the swift cluster checks the token validity with the appropriate auth service21:24
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sam_itxyes. I meant swift server.. so flow is api request (with token from auth service) --> swift server--> validate token with auth service --> if valid.. proceed ?21:27
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sam_itxis auth server <--> switft communication via messaging or http ?21:39
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BK_mannova-manage network create 1 4000 -> ValueError: IP('') has invalid prefix length (20)22:14
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BK_manwhat's wrong?22:14
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notmynamesam_itx: sorry for the delay. didn't see your response22:15
notmynamesam_itx: you have the flow correct22:15
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notmynamesam_itx: the auth server <-> swift protocol is dependent on your auth server. if you are using the auth system that ships with swift (swauth), then it's all REST-based22:16
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notmynamesam_itx: see for more info on writing your own auth integration with swift22:17
* BK_man .oO dumb subnet-calculator.com22:17
gholtBK_man: :)22:18
sam_itx notmyname: Thanks let me take a look at the url.22:18
BK_manI have a question on network service in nova22:18
BK_manIs that true that compute-node can offload ext traffic from instances only to one nova-network?22:19
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BK_manDo I need HA on nova-network?22:19
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Eykamazon is talking about a reliability of 99,999999999%/year for the stored data, is there similar value known for a normal swift setup ?22:57
EykI could not find any information for cloud files22:57
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uvirtbotNew bug: #782437 in glance "API should respect the mimetype in Content-Type and Accept headers" [Undecided,New]
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JSharpvishy, sorry to bug you again, but you said earlier that (<vishy> -A nova-network-POSTROUTING -s -d -j ACCEPT) could cause problems. Can you explain why?23:19
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vishysorry i misread it23:19
vishyi thought it was
vishyer /923:19
vishywhich would mean that 10.252 and 10.254 would hit that rule23:20
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BK_manvishy: is there a way to run nova-network in HA?23:30
vishyBK_man: probably not the way you are thinking23:30
vishyMK_man: you can run with failover23:31
vishyBK_man: ^^23:31
BK_manvishy: ok. can nova-compute talk to several or just one nova-network?23:31
vishynot several at the same time23:31
BK_manvishy: I don't want to loose ext connectivity in case if nova-network fails.23:31
vishyyeah that would be failover, it takes 3-5 seconds23:32
BK_manvishy: ok. BTW, how can I specify for particular compute to use different nova-network?23:32
* BK_man tried to run 200 instances using 1 API call and got 4% percent failure rate :)23:32
vishyBK_man: whith ec2 api?23:33
BK_manvishy: yep23:33
vishyhow many computes?23:33
vishyI've done 100 with no failures on 4 computes23:33
BK_manvishy: 3 UCS blades23:33
vishyany error for the failures?23:33
BK_manvishy: yep. Socket failure while talking to Rabbit23:33
vishyah same thing that comstud was running into23:34
vishythere is a patched version of eventlet that may help with that23:34
vishyshould be in the ppa soon23:34
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BK_manvishy: is that a new fix? I can remember that I patched this also23:34
vishyalso comstud is looking at some refactoring to help there23:34
vishybrand new23:35
BK_manok. do you have a patch on github/another site?23:35
vishyit is on bitbucket and also attached to our bug23:35
BK_manvishy: you know, I'm RHEL man with my own repo23:35
BK_manvishy: BTW, what is XXX meaning in nova-manage service list output?23:36
vishycan you see if this helps?
uvirtbotLaunchpad bug 771512 in nova "Timeout from API with 50 Simultaneous Builds" [High,Triaged]23:36
vishyBK_man: that means that the service hasn't reported in recently23:36
vishymost of the time it is because of time skew23:37
vishyinstall ntp on all of your hosts23:37
BK_manvishy: good point, I'll check the time23:37
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uvirtbotNew bug: #782446 in swift "st large object upload should retry segments" [Undecided,New]
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BK_manvishy: NTP sync solved XXX problem23:47
devcamcari actually wrote code today!23:48
devcamcarwe're going to be adding swift support to the dashboard23:48
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BK_manvishy: do I need to configure something to allow failover for nova-network?23:53
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* BK_man got nova-network not starting up at all...23:55
BK_manAttempting to grab file lock "iptables" for method "apply"...23:55
BK_manlast line in log...23:55
sam_itxwhere can I find some information about scalability (study/usage) of openstack ? # of compute nodes, # of VMs, etc. ? # of accounts, etc.23:57
* BK_man found stale locks in /var/lib/nova/tmp23:57
BK_mansam_itx: I think the only way to go for today is to do it by youself23:58
sam_itxThanks.. from the conversations, it seems you are doing that with UCS. :)23:59

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