Perl 6 - the future is here, just unevenly distributed

IRC log for #fuel, 2014-10-22

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13:13 sc-rm Anyone got the problem with spawning new instances are a bit slow?
13:14 kaliya sc-rm: parallel spawning?
13:14 sc-rm kaliya: yep, let me try a single instance
13:16 kaliya there might be n reasons for slowness in spawning multiple instances at a time
13:17 sc-rm kaliya: I’m spawning a qcow2 image, which have a fs footprint of 2.9G but the qcow2 image is only 900M
13:18 sc-rm kaliya: I guess it’s because it needs to extract the fs
13:20 sc-rm kaliya: roughly 4 minutes for a single instance, which is like the same time for multipled instances
13:20 kaliya sc-rm: what's your glance_api_version in cinder.conf?
13:20 sc-rm kaliya: on the compute node?
13:20 kaliya yep
13:21 kaliya sc-rm: nope, sorry, on controller(s)
13:22 sc-rm kaliya: no problem, couldn’t find anything in the compute node either
13:22 sc-rm kaliya: glance_api_version = '2'
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13:23 kaliya sc-rm: are you on ceph?
13:23 sc-rm kaliya: yep
13:24 kaliya in HA? do you see some timeout?
13:25 sc-rm kaliya: in ha, no time out so far.
13:25 sc-rm kaliya: If I spawn the same kind of instance from a raw format, it spawns in 13 seconds. So I’ll stick with the raw format
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13:26 kaliya is it slow only in spawning multiple instances or even other operations (on storage)?
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13:29 sc-rm kaliya: Only in spawning qcow2 images, in doing snapshots and uploading new images it goes pretty fast
13:32 kaliya sc-rm: well, qcow should be converted in raw and that's why maybe
13:33 sc-rm kaliya: That makes sence
13:36 Dr_Drache sc-rm, qcow2 isn't Supported on ceph.
13:36 sc-rm Dr_Drache: That is why it’s slow, but it works, but really slow compared to raw
13:37 Dr_Drache sc-rm, that is because it's converting it twice to 3 times.
13:37 Dr_Drache also, I've been informed we should be changing image-type to RDB in nova, kaliya any truth to that?
13:37 sc-rm Dr_Drache: That explains the bad performance :-)
13:37 kaliya you have to deselect the option 'work with qcow2' in settings pane
13:38 kaliya Dr_Drache: who did inform you?
13:38 Dr_Drache kaliya, merdoc changed it I think, and it was confirmed here somewhere. I no longer have the logs.
13:39 sc-rm kaliya: This one http://snag.gy/dNfLu.jpg ?
13:39 kaliya yes sc-rm, if using ceph, it's strongly reccomended to disable
13:40 sc-rm kaliya: Okay, that would be really nice to know in that text area
13:40 sc-rm kaliya: But I need snapshotting, that is why I enabled it
13:41 Dr_Drache sc-rm, snapshotting works
13:41 Dr_Drache without qcow2, as long as you enable all ceph options
13:41 kaliya snapshots is working, the checkbox label is a bit nasty, we're modifying it
13:41 sc-rm Dr_Drache: But the text http://snag.gy/dNfLu.jpg says othewise
13:41 kaliya sc-rm: ^
13:41 sc-rm kaliya: :-)
13:42 Dr_Drache sc-rm, text is wrong, ceph does it's own COW snapshotting.
13:44 sc-rm kaliya: But do I need to reset my env to change that or what implications does it have, if I just keep using raw formats
13:48 sc-rm kaliya: Now the proof of it, just spawned 10 instances in raw format, and it was done in less than 60 seconds, so I’ll stick with raw
14:00 merdoc sc-rm: you *need* to use raw while you use ceph as backend for cinder/glance
14:01 sc-rm merdoc: but, it works with qcow2 images too right now for some reason, but I’ll switch to use raw images instead
14:02 Dr_Drache sc-rm, it works because we can covert images, but it doesn't work "right"
14:02 Dr_Drache merdoc, did you switch to RDB in nova?
14:02 sc-rm Dr_Drache: Cool
14:03 merdoc sc-rm: it's because you didn't try images larger than 5Gb, or you have 'virtual storage' more that current size of your instances
14:03 merdoc Dr_Drache: rdb already been in nova.conf
14:05 merdoc s/been/was/
14:05 sc-rm merdoc: ahe, I exactly did not try images bigger than 5G..
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14:12 Dr_Drache merdoc; have you tested uploading a larger than available space RAW image on controller?
14:13 Dr_Drache I guess that is worded wrong.
14:14 Dr_Drache merdoc = image_type=rdb as opposed to image_type=raw is what I am speaking of
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14:18 merdoc Dr_Drache: images_type is deprecated. instead - libvirt_images_type=rbd
14:18 Dr_Drache merdoc, that's what I mean.
14:18 merdoc and that param already set by fuel
14:19 Dr_Drache merdoc, last I checked it was set to raw
14:19 merdoc in my env its rdb on all computes
14:20 Dr_Drache merdoc, you are right. sorry.
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17:23 iscsi morning
17:25 iscsi trying to install fuel 5.1 in multi-node ha setup, but process stops in deployment phase (keystone - 504 gateway timeout)
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17:33 iscsi looks like https://bugs.launchpad.net/fuel/+bug/1334306
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17:41 swift-fun Has anyone used Mirantis to deploy a dedicated swift server?
17:41 swift-fun It looks like the only option is to put the image storage on the controller node
17:52 angdraug swift-fun: not out of the box, se https://blueprints.launchpad.net/fuel/+spec/swift-separate-role
17:52 angdraug se->see
17:53 angdraug apparently there wasn't much demand for it so we never had this scheduled
17:54 swift-fun oh thanks
17:54 swift-fun it appears that the links in that article are dead
17:54 swift-fun or I don't have permission
17:56 xarses swift-fun: with some light hacking, it shouldn't be too hard.
17:57 swift-fun I'll look around
17:57 swift-fun thanks though, that might be a good place to start
17:59 xarses the basics are that the roles metadata needs to be added to openstack.yaml[1], they are already in the serializer[2], and then look at and possibly fix any issues in puppet cluster_ha[3] we had parts of it working a long while ago, but never fixed it up
17:59 xarses [1] https://github.com/stackforge/fuel-web/blob/master/nailgun/nailgun/fixtures/openstack.yaml
18:00 xarses [2] https://github.com/stackforge/fuel-web/blob/master/nailgun/nailgun/orchestrator/priority_serializers.py#L119-144
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18:02 xarses [3] https://github.com/stackforge/fuel-library/blob/master/deployment/puppet/osnailyfacter/manifests/cluster_ha.pp#L917-984
18:02 xarses the two missing role names are 'storage' and 'swift-proxy'
18:03 xarses swift-fun: ^
18:03 swift-fun Thanks
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19:35 brut Hello everyone. I need to prevent VM creation on certain hosts using scheduler. I split up hosts into different aggregation zones (testing and deployment) so I could migrate test servers to corresponding zone. How can I make scheduler to ignore hosts from specific zone in choice of deployment host for VM? Or is there a way ignore certain host without using of aggregation zones? Should I even use scheduler for this?
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20:10 brut hm. or i must just use AvailabilityZoneFilter
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22:39 jetole Hey guys. Hey xarses and rmoe.
22:40 jetole Can anyone point me to a good reference for setting up internal networking where when a VM starts, it will be using shared networking with non openstack router?
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