Friday, 2011-07-29

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nilssonhello, I was curious whether or not pxe-booting guests was supported00:18
nilssonI see a basic blueprint for it, but no details00:18
nilssonhttps://blueprints.launchpad.net/nova/+spec/nova-pxe-boot00:18
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ncihi, I'm having some issues with public IP address allocation. Should there be corresponding rules in iptables for each authorized port, or are authorized ports done in another way?03:12
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ncihello?05:02
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uvirtbotNew bug: #817866 in nova "xenserver instance build timeout with xvdd" [Undecided,New] https://launchpad.net/bugs/81786605:42
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uvirtbotNew bug: #817872 in nova "Delete security group that contains instances should not be allowed" [Undecided,New] https://launchpad.net/bugs/81787206:11
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fysawhat is the imageId for narwhal at rackspace cloud?  Maverick is ID 69.07:05
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fysaUbuntu 11.04 rather07:06
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fysa76 ..07:13
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ttxNova and Glance diablo-3 are out !08:30
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uvirtbotNew bug: #817942 in python-novaclient "server rebuild fails" [Undecided,New] https://launchpad.net/bugs/81794209:41
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alekibangottx: great110:41
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royhis there any ETA on diablo?13:41
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uvirtbotNew bug: #818050 in nova "flavorid vs instance_type id mismatch" [Undecided,In progress] https://launchpad.net/bugs/81805013:52
notmynameroyh: diablo is scheduled for sept 2213:52
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royhnotmyname: thank you!13:53
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herbsterhey guys14:17
herbsterim working on an openstack deployment atm14:17
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herbstermy boss tells me that on the swift storage nodes we need the partitions set up so that there are 100 (or as close to 100) partitions per disk14:18
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herbsterso ive got this 2TB drive im testing with ubuntu 10.04 lts server14:18
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herbsternow, in fdisk the maximum number of equal partitions ive managed to get is 50-6014:18
btorchherbster: no I think he is confusing ring partitions with atcual disk partitions14:19
herbsterbut if i use sfdisk, i can get the full 100 logical drives14:19
notmynameherbster: not fs partitions14:19
herbsterLOL14:19
herbsterare you serious :/14:19
notmynameherbster: "partitions" in relation to swift refers to shards of the total ring keyspace14:20
herbsterso how is the storage on these storage nodes supposed to be set up?14:20
notmynamewhen you build the ring, you give it a "ring power" (power of 2) that determines how many partitions you get14:20
notmynamethe target is to use a ring power that gives you about 100 total partitions on each storage node in your full cluster14:20
herbsterand when you say "100 total partitions" again, you dont mean fs partitions?14:21
notmynamecorrect14:21
herbstersooo14:21
herbsterhow am i supposed to set up the storage on these boxes14:22
herbsteris 1 big raid0 ok?14:22
notmynameok. let's make up some numbers (to make math easy)14:22
herbstersure14:22
herbster(appreciate the help btw)14:22
notmynamesuppose you have 10 servers with 3 drives each (all the same size, for the sake of argument)14:22
notmynamefor a total of 30 drives14:22
herbsterservers==swift storage nodes?14:23
notmynameyes14:23
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notmynamelet's also suppose that because of budget or physical space, you know your max cluster size is only going to ever be these 10 servers with 3 drives each14:24
herbsteryep14:24
notmynameeach of the 30 data drives will be one single xfs partition14:25
notmynameand you want a total of about 300 partitions in your cluster (100 per drive)14:25
notmynameso therefore you will use a ring power of 9 (2**8 is too small)14:26
notmynamethat gives you a total of 512 partitions14:27
notmynamethe partitions will be evenly distributed across all storage volumes.14:28
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herbsterok so let me play a hypothetical back to you, to see if i have understood you correctly14:29
notmynamewhat swift does is map the object to a partition and then find what storage volumes that partition is supposed to be on14:29
notmynameok14:29
herbsteri have N storage nodes running swift, each with X number of identical drives14:29
herbsterat the operating system level14:29
notmynameok14:30
herbsterthose X number of drives are presented as a single xfs partition to swift14:30
notmynameare each presented14:30
herbsterah ok14:30
herbsterso if there are X number of drives, there should be an equivalent number of xfs partitions14:30
notmynamein general, yes14:31
herbsterand then swift handles its own partitioning type thing inside this14:31
herbsteryoull have to excuse my noobness notmyname, i dont know anything about openstack im just the deployment guy14:31
herbstermy job to get the boxes automagic with preseed/puppet type stuff at the data center, ready for more puppet to get openstack going14:32
herbsterso this is the edge of my knowledge14:32
tudamphi all14:32
tudampwith the release of Diablo,  Keystone is expected to be "officially" issued?14:33
notmynameherbster: http://swift.openstack.org/overview_ring.html14:35
herbsterthanks notmyname14:37
herbsterits midnight on a friday night here14:37
herbsteri just spent a few hours making the hp array config utility for linux deploy and set up 12*RAID0 headless, since it can't present in JBOD14:38
herbsteri just wanted to finish the preseed for the storage nodes14:38
herbsteryour help should tack it off, ill test it on one more node and then go over it with the boss on monday to make sure we are on the same page14:38
herbsteriv saved our logbuf (hope that's ok) for posterity14:39
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herbsterwell14:43
notmynameherbster: to emphasize, determining the partition power is based on your max size14:44
herbsterthanks a lot for your help notmyname and btorch14:44
herbstersure14:44
herbsterwe are running 8 hp storage array boxes with 12 *2 TB in them14:44
herbsterfor the pilot14:44
herbsteris it enough?14:45
creihtherbster: it is useful to think about the max possible size the cluster could get (physical, network, power limitations)14:45
creihtherbster: that is a great start14:45
creihtuse the above to calculate out how big the ring should be14:46
herbsteri think we have setup DNS for 40-50 more storage nodes14:46
herbsterso i guess that is the goal14:46
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herbstermy job isnt to mess with swift14:47
herbsterjust get the boxes so the openstack guys can work on them14:47
herbsterand then once theyre done, figure out how to get it into puppet :P14:47
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herbsteralright then14:48
herbstergoodnight guys14:48
herbsteralso add creiht to the list of thanks14:48
herbstermuch gracias14:48
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creihthehe14:49
andyandyhi guys, I have a multinode configuration, the metadata request 169.254.169.254 port 80 from the VM is correctly translated to the ip address of the api-server:port but the api server doesn't reply, have you a suggestion?14:50
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andyandyhi guys, I try to rephrase my question, I can see the request from trh VM to the API (port 8773)  [tcpdump: 10.0.0.2.53660 > 10.0.1.1.8773] but the api server ignore any request ... have an idea why is it happening?15:32
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dahratBLACK15:43
dahratcoolhandluke15:44
dahrati am looking for you.15:44
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dahratim tired of googling ur name15:44
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uvirtbotNew bug: #818122 in glance "tools/pip-requires has unnecessary entry for hashlib" [Undecided,New] https://launchpad.net/bugs/81812215:46
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kbringardcan anyone point me to a quick outline of getting FlatDHCP to work? I've got the flags and stuff set… but I'm not sure at what point stuff like fixed IPs get generated, if it happens automagically, if I need to do it myself, etc15:52
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zedasanybody else getting this error this morning: http://codepad.org/fHFfmR1G  can't figure out wth could be causing that other than Twisted failing to download but pip claiming it's alright17:15
zedasyes, confirmed, it's the virtualenv.17:16
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vishyzedas: missing python-xattr17:21
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pdjancreiht: Hello, hope you are doing well....I installed swift on multi-server again today this time with 3 node configuration (1 proxy and 2 storage nodes). Everything went very well. I have few questions if you can answer that would be great17:30
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zedasvishy: yeah looks like the pip-requires got clobbered at some point.17:38
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RickB17pdjan: whats going on?18:08
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RickB17pdjan: just type out what ever question you have, and if you have alot of text to follow it use something like pastebin and link to it18:09
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nilssonI have a question: what are the procedures to PXE boot a guest?18:11
nilssonI see a blueprint for it, but not much else: https://blueprints.launchpad.net/nova/+spec/nova-pxe-boot18:11
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RickB17pdjan: are you refering to the "accounts' "containers' 'objects' 'tmp' directories?18:14
pdjanok...i have 3 nodes configured, 1st is proxy and 2nd and 3rd are my storage nodes. i have 2 drives each mounted on 2 storage nodes as sdb1 and sdb218:14
vishynilsson: there is no support for it.  No one has implemented the blueprint18:16
nilssonvishy, is there just no demand for support?18:17
nilssonalso, what would be involved in enabling it?18:17
pdjanRickB17: yes i am referring to accounts objects containers tmp dirs on my drives18:19
RickB17pdjan: what is your question about them?18:19
pdjanRickB17: are they supposed to be in sync? in other words am i supposed to see same dirs on all my storage18:19
vishynilsson: no one has been interested enough in it to make it work i guess18:19
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RickB17pdjan: I have an AIO installation setup that I am referencing, and they are identical on each device18:21
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RickB17I have three devices that I am using, each acting as a seperate zone18:23
pdjanhmm...i am missing dirs on certain partitions for ex: sdb1 on node1 containers is missing and sdb1 on node 2 accounts and objects missing18:23
RickB17pdjan: how are your zones setup?18:23
nilssonvishy, will you accept patches regarding pxe-booting ?18:23
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RickB17pdjan: we can start by looking at one server as atime.  lets start with your account server.  post a link to a pastebin with the output of your account.builder ring18:26
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pdjanhave 4 zones, 2 zones for each swift process on each storage node.  here is the http://paste.openstack.org/raw/1979/18:27
vishynilsson: absolutely18:28
RickB17pfjan: you'll notice that you have it set for "3 replicas"18:28
RickB17pdjan: if you have 4 zones, this mean 1 of the zones will not be used for each action18:29
pdjanRickB17: should that be different?18:29
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RickB17pdjan: do you understand the concept of a "zone"?18:30
RickB17and it's importance?18:30
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pdjanRickB17: ahh...now i get it, i read it over few times, slowly making sense to me. i am new to swift too so still under learning process18:31
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RickB17pdjan: yeah me, just started using it within the last 6 month.18:32
RickB17pdjan: so if you had it set to 4 replicas i would imagine that each of yoru four zones would look the same18:32
pdjanRickB17: so bcoz i set 3 replicase, i am seeing 3 dirs on each partitions. cool. thx for letting me know18:32
RickB17pdjan: correct.  The number of replicas states the number of different zones the data will be put on18:33
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pdjanRickB17: Thanks, next question, i have differernt size partitions setup. for ex: both partitions on node1 are 1 GB and both partitions on node 2 are 2 GB.18:33
pdjanRickB17: will swift start throwing errors once partitions are full? or will it move on thinking its not critical. also is syslog the right place to look for this type of error18:35
RickB17pdjan: From my understanding, maybe someone else can confirm or clearify, it will not state a successful put until 2/3 of the zones are written to.18:36
RickB17pdjan: I too am currently loking to better understand the replication process.18:37
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pdjanRickB17: ok. i thought rsync was run as saparate process, is it not. or whenever you PUT stuff rsync kicks in18:38
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RickB17pdjan: I'm not sure.  I'm actually looking to undertand that in more detail as well.18:44
pdjanRickB17: ok thx. we can wait for someone else to explain this for us...18:48
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RickB17pdjan: yeah, or dig through the documents, i'm sure it's in there somewhere.18:48
RickB17pdjan: i just haven't foudn it yet :-D18:48
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pdjanRickB17: yeah, me neither. guess rackspace dont want to share it with us ; )18:49
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pdjanRickB17: i also don't know what role workers have in each config (proxy, account, object, container) and there no's etc. do you?18:51
RickB17http://docs.openstack.org/cactus/openstack-object-storage/admin/content/object-server-configuration.html#d279e61118:53
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RickB17pdjan: you are speaking of the "workers" under [DEFAULT] in the .conf?18:53
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pdjanRickB17:  yep, thats correct18:54
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RickB17pdjan: I believe that is now my processes you want it to start for that service18:54
RickB17pdjan: when you run 'swift-init'  you should see an entry that shows one for each worker18:55
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pdjanRickB17: ahh ok, bcoz i have 2 workers on each swift process,  i see 2 processess each. thx19:00
RickB17pdjan: yup.19:01
pdjanRickB17: so why would proxy need 8 processes to be running on proxy server? this is as per multinode install instructions19:01
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nilssonhas anyone tried installing openstack on centos6? because I'm running into a package version error19:03
RickB17pdjan: not sure of why thats the numbers included in the docs, i would image it's what the writers have found out to be a good number for most installations?19:03
pdjanRickB17: ok, thx19:04
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nilssonI'm trying to follow the rhel6 install instructions for centOS 6, but it fails due o a package conflict19:09
nilssonhttp://pastebin.com/p3qmQHvx19:09
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uvirtbotNew bug: #818210 in nova "virtualenv failed to install because Twisted-10.0.0Nova.tar.gz missing" [Undecided,New] https://launchpad.net/bugs/81821019:17
retr0hahhh I was jsut about to ask that :)19:18
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kbringardquick ? about FlatDHCP, if anyone has a moment20:08
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kbringardI have everything setup (I think), and working… VMs come up, I can get to them20:09
kbringardbut, they don't seem to be routing to the outside world… they hit their default gateway and die20:09
kbringardosh, I think I know20:10
pdjanquick swift question, are the files (objects) being compressed as they are being uploaded?20:11
kbringarderr, maybe not20:12
kbringardit seems as though the network controller isn't properly natting20:12
kbringardcan public_interface and flat_interface be the same?20:13
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retr0hkbringard: set the br0 as the interface name20:23
retr0hkbringard:  :p20:23
kbringardthanks20:24
kbringard:-p20:24
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xnylanyone know how to resolve pending public state for the euca-register when registering a new image ? Or know where to start looking for where the problem might be, no errors in the /var/log/nova directory...20:30
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nilssonhello, I'm not entirely sure what the purpose of keystone is, or whether or not it's required for openstack nova20:33
kbringardnot required at the moment20:33
nilssonwill it be required in the future?20:33
nilssonand what does it add?20:34
kbringardnot sure, but probably not20:34
kbringardit's an identity service20:34
kbringardor Authentication middleware20:34
nilssonso what does it add?20:35
retr0hauthentication20:35
retr0h:P20:35
kbringardyou make a call to it, it does the backend authentication and then returns a token20:35
kbringardfeel free to ignore retr0h, he's being a smartass today :-)20:35
nilssonso does it handle vnc auth for guests?20:36
kbringardit could20:36
nilssonwell, what handles it now?20:36
kbringardit's all done right in nova, with users, keys, etc20:36
kbringardkeystone will let you like, configure your corp ldap as your backend auth mechanism20:36
kbringardso you make the nova auth call to keystone, it queries the ldap20:37
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kbringardthen returns a token that's valid for X time20:37
kbringardthat you can use to do your nova business20:37
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nilssonwhy keystone, rather than just targetting one of the modules (such as ldap) ?20:38
kbringardit lets you attach various backends without having to modify the nova code20:39
kbringardso you can write a plugin for your old radius service if you wanted to20:40
Vekincluding ldap, if you're so inclined.20:40
kbringardall nova cares about is if it got back a valid token or not20:40
retr0habstraction is generally a good thing20:40
nilssonalso, iirc, openstack depends on mysql, why that particular db?20:40
kbringardit doesn't depend on it20:40
Vekactually, it depends on sqlalchemy20:40
kbringardyea, what vek said20:40
nilssonso I could run it on a postgres db ?20:41
Vekso it can use any db sqlalchemy can use.20:41
kbringardsqlalchemy supports a range of things, like postgres, sqlite, mysql20:41
Vekgenerally, it's tested with mysql and sqlite.20:41
pdjanRickB17: just so you know, I just tried to uploaded huge files to my partitions and I can see its spread across. I was thinking data goes to particular partition and rsync syncs all other partitions but apparantly thats not the case20:41
nilssonyeah, I've used pylons+sqlalchemy before, and it's pretty nice20:41
Vekkbringard: the thing that worries me about using it with postgresql is the migration code.  Hopefully it just works, but no one really likes db migrations...20:41
RickB17pdjan: yeah i just uploaded 3.6 gigs of mp3's to my sift storage and it's there on all of them almost instant20:41
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RickB17pdjan: but i would still like to understand the full process at some point.20:42
nilssonwhat's the migration code?20:42
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kbringardvek: haha, yea… I don't see a reason to use postgres personally, but to each their own20:42
Veknilsson: database migrations20:42
kbringardnilsson: when you add a new table or colum or something20:42
Vekkbringard: actually, I prefer postgres to mysql, personally.20:42
pdjanRickB17: there is some compression going in too which is cool.20:43
Veknilsson: which happens frequently at this point in the openstack development.20:43
nilsson:<20:43
kbringardVek: yea, I have nothing against postgres, I meant for me personally I see no reason to use it, since I know mysql much better :-)20:43
kbringardplus slony makes me want to cry20:43
Vekmy guess is that 99% of the migration code will work just fine with postgresql.20:43
kbringardalthough with PG9 that's not so much an issue20:43
Vekheh.20:44
nilssonwhere is this migration code?20:44
pdjanRickB17: also noticed that one partition got full and swift gave an error in syslog20:45
Veknilsson: to use it, it's transparent; "nova-manage db sync" does the appropriate magic.20:45
Vekto see it, search the source tree for the migrate_repo directory.20:45
nilssonok20:45
RickB17pdjan: yeah all logging should be in the syslog unless your configured it differently, i believe20:45
Vek(FYI, it's sqlalchemy-migration)20:45
nilssonnice20:45
Vek(or -migrate or whatever it's named; don't happen to remember off the top of my head)20:46
nilssonI have another question20:46
nilssonwhen trying to install on centos6, I get a few errors:20:46
nilssonhttp://pastebin.com/p3qmQHvx20:46
retr0hwow centos 6 is out!?20:47
nilssonit has to do with the euca2tools version20:47
retr0hwewt!20:47
retr0h:)20:47
nilssonretr0h, yeah, it was a week or two aga20:47
nilsson*ago20:47
retr0hi got tired of waiting20:47
retr0hheh20:47
pdjanRickB17: yeah me too (re: understand full process)20:47
nilssonI've been following the RHEL6 install guide, hoping it would work20:47
nilssonis it because eucatools is coming from EPEL ?20:49
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kbringardI have no idea, I only use ubuntu with OpenStack at the moment20:51
nilssonyeah, why is ubuntu the preferred environment?20:52
kbringardbecause it's what all the devs use and because they tend to have pretty cutting edge versions of packages, so you can take advantage of the newest features20:53
retr0hprobably b/c it moves a bit faster than centos and developers seem to use it more in their dev env.. i smy guess20:53
kbringardhaha20:53
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kbringardget out of my head retr0h20:53
retr0hstop replying to my emails then ! :P20:53
kbringardheh, done20:53
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nilssonyeah, FYI, I was running into the problem because I have both EPEL and openstack repos enabled21:09
nilssonand the EPEL euca2ools package is newer than the one in openstack, for some reason21:10
kbringardI know there were some issues with boto2 that vishy was working on, that may be why21:10
nilssonboto2 ?21:12
retr0hit's a python library21:12
kbringardboto is the ec2 interface library for python21:12
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nilssonok21:13
vishyeuca2ools uses boto21:13
kbringardyea, what he said ^^21:13
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kbringardwe strive for full ec2 compatibility, but sometimes there is a delay21:13
nilssonso it does seem like the dashboard requirest keystone21:13
kbringardthe newest one does, yea21:13
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kbringardI think rev 42 uses the old internal auth stuff21:14
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vishynilsson: we are in the process of standardizing everything on keystone.  Should be in place by d4 and finished by the diablo release21:17
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nilssonvishy, which is released in september, correct?21:18
kbringardvishy: as long as you're feeling chatty… what's the status of quantum? I thought I read somewhere that the first public release of it would be available around d3?21:19
WormManis there any documentation yet on the new multi-nic and new HA network stuff?21:19
vishykbringard: haven't been keeping up with it, I think they are making progress21:19
kbringardah, OK, no worries21:19
vishyWormMan: the only real doc so far is the blog post i wrote about it.  I think anne is subsuming (or maybe already has subsumed) it for the docs21:20
nilssonvishy, do you know of anyone who's gotten openstack working on centos 6?21:21
vishyi think it has been done21:22
WormManvishy: have that URL, I don't remember seeing it(if it's still available)21:22
vishyi think the grid dynamics guys use that version21:22
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vishyWormMan: http://unchainyourbrain.com/openstack/13-networking-in-nova21:22
WormManthanks21:22
nilssonvishy, are there any docs on it?21:22
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vishynilsson: No, best bet is to contact grid dynamics.  They have packages for RHEL6 which might work?21:29
vishynilsson: http://yum.griddynamics.net/yum/master/openstack/21:29
nilsson?21:29
nilssonshould the rhel6 docs also work for centos6 ?21:30
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vishycan't hurt to try!21:30
WormManvishy: one thing I was thinking about on that sort of setup, is there any reason(except really confusing people) to not have every compute node use the same IP for DHCP and setup iptables(ish) rules so that dhcp and that IP never leaks out onto the physical network?21:33
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retr0hWormMan:  I'd just wait for http://blogs.citrix.com/2011/06/22/quantum/ :)21:35
WormManretr0h: yea, waiting isn't exactly on the roadmap here :)21:35
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retr0hWormMan:  heheh yah same here…21:36
vishyWormMan: hehe, it could work. Sounds a little scary.21:36
retr0hkbringard:  and I are ordering hardware for 8-10 racks in 3 diff POPs heh21:36
retr0hthats a lot of used IPs under the distributed HA network controller ;)21:37
WormManyea, that's my thought, trade IP address use for 'more magic' :)21:37
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kbringardI love implementing random magic, or as I call it: job security21:37
kbringard;-)21:37
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WormManin this place I think just using Ubuntu will be enough magic to keep them confused for years :)21:39
vishyI'm not confident enough with my network-foo to feel comfortable handing out the same ip to multiple vms21:39
vishys/vms/hosts21:39
WormManI'm not sure if it will be needed, but if places end up with many networks(isolation, etc) and lots of physical hosts, it could be interesting21:40
kbringardvishy: if my understanding is correct, implementing quantum with something like opevswitch and openflow hardware routers and stuff should kind of be a replacement for the whole network controller thing, yea?21:40
vishyyeah21:41
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kbringardI <3 me the network controller, but I have to admit the being a little giddy at the thought of offloading most of it to hardware21:42
retr0hyah thats what i likea bout openVswitch solutoin21:42
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creihtawww pdjan left :/23:09
creihtRickB17: there isn't currently any auto compression in uploads23:09
creihtwe had a team outing today, so sorry for nobody being able to answer questions :)23:09
creihtUploads to swift attempt to stream all 3 copies in parallel to the object nodes23:10
creihtit requires 2 (if you have 3 replicas) to finish completly in order to return success23:10
creihtThe short story for object replication is23:10
creiht1. object replicator crawls the partitions in each drive and for each partition on the drive23:11
creiht2. looks up the other locations of the partition in the cluster23:11
creiht3. requests hash lists for those partitions and if there are any differences, spins up an rsync process to push the data that it has to the other node23:12
creihtthis happens continuously and simultaneously accross the entire cluster23:12
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RickB17creiht: thanks for the follow up.23:29
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RickB17in all docs I see the value default_swift_cluster in proxy-server.conf stating ip addresses.  Can this use a host name instead? and what other options are their becides local#?23:30
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uvirtbotNew bug: #818292 in glance "Unable to register image with FS backend" [Undecided,New] https://launchpad.net/bugs/81829223:32
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