Saturday, 2012-06-02

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uvirtbotNew bug: #1007661 in keystone "keystoneclient should only attempt to decode JSON in msg body if the response was a success" [Low,Triaged] https://launchpad.net/bugs/100766100:01
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prectechCharlieHello00:29
prectechCharlieanyone know where I can get a centos 4.7 image to run on openstack?00:30
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koolhead17bilal, hey there01:10
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bilalkoolhead17: Hi01:30
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Madkissduh. fun with nova-network again08:35
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Madkissis there anything I can do to find out what nova-network wants my br100 interface to look like so that I can make that the interface configuration?09:01
MadkissI'm fighting against windmills09:01
Madkissit tries to delete all ip addresses09:02
Madkissand for whatever reason fails09:02
Madkiss2012-06-02 10:45:09 TRACE nova Stderr: 'Error: either "local" is duplicate, or "secondary" is a garbage.\n'09:02
sgranwhat sort of setup are you trying to do?09:02
MadkissI just want nova-network to not touch my br100.09:02
MadkissI don't want it to delete or add any addresses there.09:02
MadkissI want nova to use it. and that's it.09:02
sgranis this flat, dhcp, vlan?09:03
Madkissflatdhcp.09:03
MadkissI had it working until an hour ago, when  decided to use multi_host=T.09:03
Madkissapparently, nova-network expects br100 to look differently with multi_host=T09:03
Madkissand now it's screwing with my IP addresses again.09:03
Madkissit apparently tries to remove all addresses from it, and uses the "secondary" parameter even for the last IP address the interface has09:04
Madkisswhich is a bug I think09:04
Madkisswhich is why nova-network crashes, which is why the machine becomes unreachable.09:04
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sgranmutlihost=T expects to own the interface, as it will be adding ip addresses to it for each vm it brings up09:04
Madkissso I can not use an already existing bridge with multihost=T?09:05
sgranlet's back up a step.  What is your network topology and what are you hoping to do with multihost?09:06
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MadkissI have one controller and one node.09:06
sgranie, do your compute nodes have 2 nics?  are your vms on the same subnet as your compute nodes, or hidden behind them with nat?09:06
Madkissthe node is unable to connect to connet to the internet09:07
Madkissbecause the according DNAT and SNAT rules are not set on that machine.09:07
Madkissso I guessed I need to run nova-network to achieve that09:07
Madkissand that's whjere multihost came in.09:07
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sgranwhat's the network topology ?09:08
Madkisswhat do you mean?09:08
sgran10:06:52 < sgran> ie, do your compute nodes have 2 nics?  are your vms on the same subnet as your compute nodes, or hidden behind them with nat?09:08
Madkissthey do have two nics, but only one is available to nova.09:08
sgranso, the compute nodes have eth0 on one network and the vm bridge on another?09:09
Madkissno. the compute nodes have eth0 and br100 on top of it and that is what I want nova to use.09:10
sgranso you are putting the vms on the same (physical) network as the compute node and the controller?09:11
Madkissthe physical network is the same. the ip network is not.09:11
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Madkissmy hosts are in 10.43.0.0/24, I want my VMs to be in 192.168.22.32/255.255.255.22409:12
sgranout of interest, why?  This really loses a lot, and I don't see what it gains09:12
sgranie, since there is no physical separation, bypassing security groups is trivial09:12
sgranyou add complexity to the compute nodes, and you lose automatic management of the backend network09:13
MadkissOkay, so what do you suggest I do?09:13
sgranI'd either put the vms on the same physical and logical subnet and tell dnsmasq to have them use the normal gateway, or I'd put them physically behind the compute node(s), using a resilient nova-network pair for a gateway/firewall09:14
sgranie, either of options 2 or 4 here : http://docs.openstack.org/trunk/openstack-compute/admin/content/existing-ha-networking-options.html09:16
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sgrandepending on whether the isolation that having the vms in a private network gives you matters in your case09:16
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Madkissahum.09:21
Madkissgah, now I'm in this awful situation again where nova-compute will just not do anything09:22
Madkisssgran: well, that's wonderful, but, erm, again, nova-network is just taking br100 down again, even without multihost09:27
Madkissit would be REALLY helpful if nova-network just wrote down into its logfile what it expects the interface to actually *look like*09:29
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Madkissinstead of just starting to take it down ip by ip, and even doing it in a buggy manner, so that one ends up with an unreachable system09:30
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Madkissyippieh09:49
Madkissand there we go again09:49
Madkisssgran: how do I make nova NOT TOUCH br100?09:49
Madkissthe IP it expects to be there is in09:49
Madkissthis is just total nonsense09:50
Madkissor is it because br100 has another IP in the same network?09:52
sgranMadkiss: what led you to believe that this would work?  I suspect that asking nova to manage something dynamically and wanting to manage it statically at the same time is just a misconfiguration09:52
Madkisssgran: actually, what led me to believe that this would work was the fact that it did until round about two hours go.09:53
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MadkissI had br100 set up with an IP address, nova-network would start up, see that the IP is there and not touch the damn interface.09:53
sgranso, I'm not an openstack dev, I'm not personally invested in the project, and it's Saturday morning09:54
Madkissand as far as I understand it, this is documented behaviour. If I want nova-network to use an already existing bridge, I can set it up in that way09:54
sgranthere's probably no reason for you to be hostile with me09:54
sgranI understand that you're frustrated, but I find it unhelpful09:54
MadkissI'm not hostile with you, sorry. I'm just desperate, because it's not working. and not helpful.09:54
Madkissand not documented.09:54
Madkisswhich is an euphemisim.09:54
sgranI am trying to say that I think this method of configuration is not likely to work, no matter if a doc somewhere says it will or not09:55
sgranbasic networking says mixing various subnets on the same physical layer is a bad idea09:55
ijwMadkiss: I take it you haven't actually changed your software version or anything?09:55
Madkissijw: that is correct.09:56
Madkisssgran: I am down to 10.43.0.0/24 on the host now. for the host, and for VMs, just as you suggested.09:56
ijwsgran: I think that's a bit overly general.  There are many times when you don't want to do it but it's not a completely stupid thing to do.09:56
MadkissWhat's happening is that nova-network starts up, deletes all IP addresses from br100 (or at least tries to do so, it fails) and the machine is unreachable.09:56
ijwAlso, nova-network is a bit sucky and we should also be using Quantum. ;)09:56
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Madkisscan I use quantum in an environment without a vlan capable switch, with two machines only?09:57
ijwYes, you use openvSwitch in the kernel.  That said, I'm setting it up myself at the moment and I'm not there yet so I don't know how hard you'll find it to get working.09:58
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ijwBut, basically: your quantum server node runs quantum-server and whichever quantum plugin you choose (e.g. OVS) and both your nodes run the quantum OVS agent which responds to changes in network requirements and reconfigures the OVS setup.09:59
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ijwThe server is the API and propagates network changes.  The agents receive the changes and configure the OVS in the local kernel accordingly.  Over the physical network it uses VLANs or tunnelling depending on setup.10:00
ijwAs I say, I've not got it running, so there may be huge caveats here.  But that is the theory.10:01
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Madkisscool, now it doesn't work with the old configuration anymore, either10:03
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ijwMadkiss: wait a day or two till the phase of the moon changes.10:04
Madkiss2012-06-02 12:04:17 TRACE nova Stderr: 'Error: either "local" is duplicate, or "secondary" is a garbage.\n'10:04
Madkissthat's just ridicioulous.10:04
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Madkissijw, sgran: I think I got it10:35
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Madkissjup.10:38
Madkissijw, sgran: Just in case somebody ever stumbles across a similar issue: If you want to configure your bridge manually, you have to make the nova IP the *first* one on the define. secondary's don't work.10:38
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MadkissOkay, and now the metadata thing doesn't work again, and trying to log into the VM leads to "Connection reset by peer" messages10:57
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MadkissWhen booting my VMs, during lxmount, I see "http://169.254.169.254 failed: http error [404]"11:10
Madkissanybody seen this?11:10
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Madkisscool, and now it appears I hit https://bugs.launchpad.net/nova/+bug/98235611:28
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Madkissokay, worked around that11:46
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koolhead17Madkiss, busy day :)11:57
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Madkisskoolhead17: oh well.12:00
koolhead17hola zul12:01
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Madkissha.12:50
Madkissgot it.12:50
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deepakcsHello, can someone tell me how I can have swift talk to my own storage array ( either SAN or NAS).. how is this achieved in swift/openstack ?13:06
deepakcsin other words, Is there a way/method to connect to external storage arrays in openstack/swift13:07
Trixboxerdeepakcs: does your storage gets showed as block device to swift server ?13:12
deepakcsTrixboxer, i am not yet started using openstack, but evaluating it.. so if my storage is SAN, it has LUNs ( seen as block device on host) and if i had NAS ( its files and nfs exports as seen by host)13:12
Trixboxeryou need LUNs13:13
TrixboxerAFAIK13:13
AndyMillardeepakcs: if you're connecting to a storage array in that way then are you sure your application is suited to a cloud like environment?13:13
deepakcsTrixboxer, ok... so how do I tell swift to create storage (aka LUNs here) in my external storae box ( eg: ibm ds8k) ?13:14
deepakcsAndyMillar, did not get your Q.. how is using storage array related to cloud or not ?13:14
Trixboxerdeepakcs: basically the swift servers handle it13:15
Trixboxeryou make a server as a swift server by installing swift on it13:15
deepakcsAndyMillar, Trixboxer my larger aim is to exploit storage offload capabilities provided by the external storage arrays.. wondering if swift today has a mechanism to allow me to doso ?13:15
Trixboxeryou need to put some 3+ LUNS on it for replication and other stuff13:15
Trixboxerand then configure swift the way you want13:16
Trixboxer"aim is to exploit storage offload capabilities provided by the external storage arrays"  <== can you brief ?13:16
AndyMillarI suppose th answer your actual question you'll want to do what Trixboxer says, as what you want to do should work13:16
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AndyMillarbut the premise of cloud computing is transient nodes with transient data, so SAN backing everything seems backwards13:18
deepakcsTrixboxer, so what you are saying  only answers part of Q... i can say provision a thin provisioned LUN(s) and assign to the swift server, but the storage array can have more capabilities like copy-offload, remote mirroring, etc.. how to exploit those ?13:18
deepakcsAndyMillar, transient nodes and transient data <== can you explain what this means ?13:19
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AndyMillarrkukura: you wouldn't use the remote mirroring stuff, swift handles that for you13:19
AndyMillardeepakcs: physical and virtual nodes are unreliable, storage is unreliable13:20
Trixboxerdeepakcs: swift is a mechanism which replicates and ensures redundancy availability and API access to data13:20
Trixboxerimaging it like S313:20
deepakcsAndyMillar, but swift would do it in software.. array does it in hw.. i feel thats more efficient and imp.ly the host/swift server is not doing the work.. its offloaded.13:20
AndyMillardeepakcs: see my initial comment when I asked if cloud technology was right for your application13:20
Trixboxernow what you do below to your LUNs and Disks or what processor you use whats your RAM ECC is thats all on you13:20
deepakcsAndyMillar, ok i understand.. you are syaing with commodity storage/hosts storage can be unreliable, hence the reliability is added/provided via swift using software.13:21
AndyMillarthe point of "the cloud" is to take advantage of cheap commodity hardware13:21
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AndyMillarif you're throwing enterprise kit at it, you're doing it wrong13:21
deepakcsAndyMillar, ok .. i am getting your point.. but then it also means that if someone has a good storage array with offload features, it can be exploited to its fullest.. and he/she should look for cheap commodity storage even when he/she has expensive storage ?13:22
AndyMillarok, the actual question should be...13:22
AndyMillarwhat are you actually trying to do?13:22
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AndyMillar(people miss-use "The Cloud", and it angers me)13:23
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Trixboxerswift offers great reliability redundancy performance and API on cheap hw so you dont need enterprise13:23
Trixboxerbut if you use it then its justa cherry on the pie :)13:23
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deepakcsTrixboxer, AndyMillar i understand .. in response to "what r u actually tring to do?" - my answer would be.. I was figuring out if someone had storage array already, how does swift fit in there ? can it use that storage and exploit its capabilities.13:25
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AndyMillarnot really, we're pretty much binning our "enterprise" storage for our cloud13:26
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deepakcsAndyMillar, binning ?13:26
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AndyMillarwell, we're not using any of it13:26
AndyMillar(actually, I've got no persistent storage at all, thinking about it)13:27
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deepakcsAndyMillar, Trixboxer thanks, i guess i got my asnwer.. do not mix enterprise class storage with swift/cloud in general :)13:27
AndyMillardeepakcs: you can mix it if you like, it's just pointless :-)13:27
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deepakcsAndyMillar, Ya, because all the necessary features related to data integrity and reliability is provided by swift.13:29
AndyMillarindewed13:29
AndyMillarindeed*13:29
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pydoes anyone have good tutorial for swift + keystone implementation15:39
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janisg_what is not satisfying you in official docs?15:45
janisg_they are clear enough for simple testbed setups15:46
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janisg_and i think they are the only public documents on the topic atm :>15:46
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Madkisspy: http://www.hastexo.com/resources/docs/installing-openstack-essex-20121-ubuntu-1204-precise-pangolin16:10
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pydoes anyone else have problem using cyberduck and swift + ssl ?17:09
pyi keep getting login failed17:09
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notmynamepy: what auth system are you using?17:20
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pydevAuth17:24
pymaybe this is problem17:24
pyi should use swAuth or keystone i believe right?17:24
Madkisskeystone would be the preferred method, actually.17:24
notmynamepy: I think cyberduck only supports auth 1.0. keystone doesn't support auth 1.0 anymore (IIRC)17:24
notmynamepy: devauth? what version of swift are you using?17:25
py1.5.117:25
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pySAIO install17:25
notmynamedo you mena tempauth?17:25
pyyes sorry17:26
notmynameah ok :-)17:26
pytempAuth17:26
py:17:26
py:)17:26
pyi belive i need swauth17:26
pyright ?17:26
notmynamedevauth was something we removed from swift over a year ago17:26
notmynameno, tempauth should be fine17:26
pyhm17:26
notmynameare you using ssl?17:26
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pyyes17:26
notmynamecyberduck requires it, but note that ssl directly on the proxy is a bad idea in prod17:26
pyaha17:27
pynotmyname: why is it bad?17:27
notmynameit's "supported" in swift for testing and POC only17:27
pyaha17:27
notmynamepy: python+eventlet+ssl has some bad side effects (eg https://github.com/notmyname/ssl_eventlet_slowloris)17:28
pyi see17:28
notmynameyou should use ssl for swift (because of the auth tokens in the headers), but terminate it with something like stud or on your load balancer17:29
notmynamepy: what error are you getting back from cyberduck17:30
pynotmyname: it is login failed error17:30
pynotmyname: but it works over curl so user and pass is correct i believe :)17:31
notmynamepy: any logs on your swift proxy?17:31
pysec17:32
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pynotmyname: http://pastebin.com/HdxRGc2A17:34
notmynamepy: 400 response, probable because of the /v1 rather than /v1.0. let me test17:35
notmynameya. that's it17:35
pysec17:35
pynotmyname: i did this17:38
pydefaults write ch.sudo.cyberduck cf.authentication.context /auth/v1.017:38
pyand now i get17:38
pyJun  2 19:36:55 cloud proxy-server - 10.10.10.1 02/Jun/2012/17/36/55 GET /auth/v1.0 HTTP/1.0 200 - Cyberduck/4.2.1%20%28Mac%20OS%20X/10.7.4%29%20%28i386%2917:38
pybut17:38
pynow i get new error :) Network Error: Unexpected problem, probably in parsing Server XML17:39
notmynameinteresting. you don't by any change have a rackspace cloud files account, do you?17:41
notmynameI'm not sure what cyberduck is expecting there17:41
pyno unfrotunatly i do not have it :S17:41
zykes-notmyname: is multi-region sync coming soon ? :p17:42
notmynamezykes-: define "soon" ;-)17:42
zykes-1 year ? :o17:43
notmynamezykes-: ok. I hope so. I should know better in a month or so. I know of a few companies that have expressed interest in using it. not sure yet how interested they are in developing it17:44
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notmynamepy: I just added some docs to https://github.com/notmyname/ssl_eventlet_slowloris to explain the issue17:47
pygreat17:48
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zykes-notmyname: are you using puppet to deploy swift ?17:51
notmynamezykes-: not at rackspace17:52
* zykes- wonders what you use there then ;p17:54
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notmynamezykes-: we have custom kicks and use VCS to keep track of the configs. then use dsh to issue commands to groups of machines17:56
notmynamezykes-: our advantage is that we don't start with a generic machine17:57
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zykes-what you start with then ? : p18:07
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