Monday, 2015-10-05

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openstackgerritmin wang proposed openstack/neutron-lbaas: Admin_state_up tempest test for health monitor  https://review.openstack.org/23087504:45
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pai15hello, has anyone tested source_ip policy with lbaas v2 on kilo? The behavior observed was that if the member instance goes down, the next/other member does not pick up the requests sent by the source that was supposed to be services by the member that went down.14:18
pai15this is with haproxy driver14:18
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openstackgerritmin wang proposed openstack/neutron-lbaas: Admin_state_up tempest test for health monitor  https://review.openstack.org/23087515:31
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openstackgerritmin wang proposed openstack/neutron-lbaas: Admin_state_up tempest test for health monitor  https://review.openstack.org/23087516:00
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pai15hello, hello, has anyone tested source_ip policy with lbaas v2 on kilo? The behavior observed was that if the member instance goes down, the next/other member does not pick up the requests sent by the source that was supposed to be services by the member that went down.16:23
pai15this was with haproxy driver. Same behavior was also observed on devstack with kilo and lbaasv2 with source_ip polocy16:24
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pai15any thoughts on https://answers.launchpad.net/neutron/+question/271975 ?17:45
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openstackgerritStephen Balukoff proposed openstack/octavia: Add .eggs/ to .gitignore  https://review.openstack.org/23112818:27
bloganpai15: that source ip is just as an algorithm in which to determine which member gets traffic, its not the same as the SOURCE_IP health monitor18:30
bloganso if you dont have a health monitor on that pool then the load balancer will still send traffic to that down member18:31
bloganSOURCE_IP algorithm is confusing, wish we would ahve named it somethign different18:31
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sbalukoffCould always change it. Though now we have to maintain backward-compatibility. :P18:35
blogansbalukoff: we could deprecate, and accept another enum18:36
sbalukoffYep.18:36
bloganimmediately accept another enum18:36
sbalukoffYep18:36
blogandougwig: what does a10 call the SOURCE_IP algorithm?18:37
pai15If similar test is performed for round robin, when it detects one member down, next member responds - I guess that is just the nature of round robin18:39
bloganpai15: yeah bc source_ip will just keep sending it to the same ip18:40
bloganpai15: but its still different than the health monitor source ip18:40
bloganpai15: i can never remember what makes it different, but it subtle yet significant if that makes sense18:41
bloganwhich im sure i dont18:41
pai15so for SOURCE_IP, if health monitor is configured,  the next member will pick up?18:41
bloganpai15: I'm guessing that depends on what software lb you're using (haproxy, a10), but I would think it would but I honestly haven't tested it out18:41
pai15is there any detection of member down and the rehash the IPs?18:42
pai15oh ok18:42
bloganbedis is the haproxy guy18:42
bloganbut bedis doesn't respond much, he's too important now18:42
sbalukoffHeh!18:43
* blogan sacrifices three chickens and a goat to summon bedis18:44
bloganthats like one meal for me18:44
pai15:) ok - thanks, I will test by configuring the health monitor and update https://answers.launchpad.net/neutron/+question/271975 accordingly18:44
bloganpai15: thanks!18:45
bloganpai15: post it in channel too if you dont mind, im curious18:45
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pai15yes18:45
pai15will do18:45
blogannow that memories are slowly coming back, the hash won't get recalculated unless another member gets added or removed, sooo if the health monitor detects a member is down, that techincally removes it, causing a hash update18:46
bloganpai15: ^18:46
bloganwell more probably a hash clear18:46
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pai15blogan: so the health monitor is the key here18:47
pai15will test and update channel in a few18:47
bloganpai15: yep18:47
bloganpai15: thanks!18:47
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dougwigblogan: pretty much the same: src_ip_persistence19:00
dougwigblogan: oh wait, you mean the lb algo, sec.19:00
dougwigblogan: we map that to WEIGHTED_LEAST_CONNECTION19:02
blogandougwig: really? wouldn't it not be least connections though?19:03
bloganohh19:03
dougwigblogan: it's the weighted part that matters more.19:03
blogandougwig: i get it, you dont have a SOURCE_IP19:03
bloganso you pick the best possible19:04
dougwigblogan: i think weight/source_ip has the same net effect.  that we allow all the lb_methods as weighted is a tangent.19:04
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blogandougwig: i dont see how it would have the same net effect, but i haven't made my brain dive deep into this19:06
blogandougwig: and im not sure i want to make it19:06
blogandougwig: so i will accept  your answer as a default19:07
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openstackgerritmin wang proposed openstack/neutron-lbaas: Admin_state_up tempest test for health monitor  https://review.openstack.org/23087519:26
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pc-potholehttps://review.openstack.org/#/c/230775/20:41
johnsomI was just looking at that20:42
pc-pothole:)20:43
johnsompc-pothole There is nothing here that would actually install this.  Is that intentional?20:44
pc-potholeYes. It's being used by custom images20:48
pc-potholejohnsom:20:49
johnsomOk20:50
openstackgerritMerged openstack/octavia: Adding init.d script  https://review.openstack.org/23077521:00
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fnavalhi minwang2 can you please send me those links you posted on hangouts earlier?  i seem to have lost them21:11
fnavalalso same for johnsom please ^^21:11
johnsomfnaval: https://review.openstack.org/#/c/228581/21:11
fnavalthanks21:12
pai15blogan: I got pulled into some other things, will test that lbaas v2 with source_ip with and w/o health monitor and update the channel tom.21:18
bloganpai15: no problem, i dont sign your paychecks :)21:18
pai15:) I know but curiosity is another thing - I know how restless I can get when I need to know something :)21:19
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johnsomsbalukoff Quick question about the docs changes (thanks BTW).  Why is that the Tenant API?  I would think the tenant API is the LBaaSv2 API21:37
sbalukoffPreviously it was called the "Operator API," however all the commands described in that document are actually tenant-facing features. As we eventually intend to introduce an Operator API (which tenants need not be aware of), it made sense to avoid confusion by not calling the API we have right now the operator API.21:39
sbalukoffAnd yes...21:39
johnsomHmmm, Ok, thanks.  I was trying to decide between +2 or -1 on that.21:40
sbalukoffWhile Neutron LBaaS v2 is the Octavia API we should be pointing tenants at, you can actually manipulate Octavia directly by talking to the Octavia API directly. (There's no CLI for this, of course, but that's beside the point-- we don't have CLI documentation because there's no CLI)21:40
sbalukoffAfter all the Neutron LBaaS v2 driver for Octavia just ends up talking with the Octavia API, eh.21:41
sbalukoffI guess we could just call it the 'Octavia API' instead of the 'Octavia Tenant API' if that makes more sense to people. I'm mostly interested in avoiding later confustion by not calling it the operator API at this time, eh.21:42
sbalukoff(Working on good 'intro' and 'getting started' documentation right now. I like how it's coming together so far...)21:42
sbalukoff(I'm on track to have that available for people to review before this week's meeting.)21:42
johnsomThat sounds awesome21:47
johnsomI am working on diagrams for the presentations that could be useful for the docs.  I will share when I have something readable21:48
minwang2fnaval https://review.openstack.org/#/c/230875/21:48
sbalukoffjohnsom: Oh, cool! I'm also doing diagrams. XD21:49
sbalukoffSurprisingly, they're not all in GraphViz this time. XD21:49
sbalukoff(GraphViz sucks at network diagrams, eh.)21:49
johnsomWe should try to compare notes, Wednesday maybe.  I can assure you I am not working in graphviz21:49
sbalukoffHaha21:50
sbalukoffSure.21:50
johnsomBut they may be able to be recreated there21:50
fnavalthanks min21:50
sbalukoffWell... I'm still of the opinion that source files for graphs are necessary so that they can be edited by anyone going forward. However, I'm less dogmatic about said source files needing to be in ASCII / git reviewable format of some kind.21:51
johnsomYeah, I am open to options.  I will jump out a window if I have to do the creative part of the work in something like graphviz21:52
sbalukoffHAHA! Indeed.21:53
sbalukoffI usually do the creative part on a white board or piece of paper. Then I work to make the GraphViz look kind of like that. Sometimes this can be about as pleasant as running a cheese grater across the back of your hand. :P21:54
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openstackgerritmin wang proposed openstack/neutron-lbaas: Admin_state_up tempest test for health monitor  https://review.openstack.org/23087522:02
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openstackgerritmin wang proposed openstack/neutron-lbaas: Admin_state_up tempest test for health monitor  https://review.openstack.org/23087522:53
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bana_kany idea why I am not able to see my contributions to openstack in my git profile ?23:40
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