Saturday, 2017-02-04

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rm_workugh yeah i'm about to *give up*00:07
rm_workI still kinda think something is broken here00:07
rm_worklike, are we SURE this is working? :/00:07
johnsomI would take a look myself, but my devstacks are scrambled thanks to the py35 stuff.00:07
rm_workjohnsom: I honestly am not convinced this is *working*, I think something got messed up somewhere, but I have almost no exposure to these neutron extension things00:07
rm_workaugh, yeah still getting through that stuff00:07
rm_workLooking at some of these bugs I've run into, I wonder a bit whether anyone has actually tried to use this yet >_<00:08
rm_workand if they have, whether they've just fixed all this stuff silently downstream00:08
rm_worki'm going to do a fresh devstack build and see if it works00:09
rm_workjohnsom: uhh, so a week ago I was using a DNS-name for the health_monitor controller_ip_port_list00:40
rm_workand as of now, I rebuilt everything and the amp agent can't seem to resolve it even though nslookup does00:40
rm_worksomething changed? IP works fine now I guess00:40
johnsomYeah, DNS is disabled in all of our amp images00:40
rm_workis that new?00:40
johnsomNo00:40
rm_work...00:40
rm_workweird00:40
rm_workit *was* working last week00:40
rm_workif i switch back to my old amp image it should start working again... <_<00:41
johnsomI made it more effective for centos in the RH patch, but that shouldn't have been working in ubuntu00:41
rm_workhmmm00:41
johnsomhttps://github.com/openstack/octavia/blob/master/elements/no-resolvconf/finalise.d/99-disable-resolv-conf00:42
rm_workweirder though is that if i log in to the amp and do an nslookup or a ping, it can still resolve00:42
johnsomCheck the history00:42
johnsomWe kill DNS in the amp because we don't intend to use it and it slows down a bunch of stuff that by default tries to resolve00:43
rm_workyeah00:43
rm_worklooks like that was added as part of the RH patch00:43
rm_workpreviously it wasn't killing it in /etc/nsswitch.conf00:43
johnsomJust the last three lines were added00:43
rm_workright00:43
rm_workwhich affects ubuntu as well00:43
rm_workand I'm thinking is what makes it no longer work00:44
rm_workgonna try reverting that in one of my amps and see00:44
johnsomMaybe the "old" way was broken on xenial?00:44
johnsomI know it worked before00:45
rm_workmaybe00:45
rm_workyep00:45
rm_workwhen I put that back in xenial it works again00:45
rm_workI was actually relying on DNS T_T00:46
johnsomSo I guess I fixed a bug we didn't know we had....00:46
rm_workyep00:46
rm_work:)00:47
rm_workexcept I was using it as a feature, not a bug T_T00:47
johnsomTempted to shame nun you...  Mostly because it's the end of a long week00:49
rm_worklol00:51
rm_workwell, I am tempted to re-enable DNS downstream <_<00:51
rm_workso I can continue doing that00:51
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rm_workI suppose THEN I might deserve a shame-nun00:51
johnsomIt is evil.  Just one more thing to break00:52
johnsomGrin00:52
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rm_workit's unclear to me why DNS is such a bad thing -- I suppose somehow security?00:52
johnsomThat being said from someone that runs their own resolver and a few domains00:52
rm_workI mean, this is Godaddy... DNS is kinda our thing :P00:52
rm_workbut, I suppose that's a fair point00:52
rm_workif DNS goes down and kills the entire fleet of LBs00:52
rm_workT_T00:52
rm_workbad news bears00:53
johnsomTo me it is: 1. One more service to depend on working.  2. Added latency when you have a cache miss.  3. Evil bugs with negative caching if you aren't careful.00:53
rm_workahhh, I suppose so00:54
johnsomPeople doing not so bright things with TTLs00:54
rm_workbut like00:54
rm_workhmm yeah I guess00:54
rm_workwhat happens if we ever ACTUALLY have to change our controller IPs00:54
johnsomThen there is the whole DNSSEC thing, which adds another layer of stuff that needs updating00:54
rm_workis the answer "don't do that"? :P00:54
rm_worklike, if we add some, then all the sudden new amps have a slightly different list00:55
johnsomYeah, we update the octavia.conf and use that admin feature to update the configs that we never implemented00:55
rm_workand that happens a couple times00:55
rm_worklolol00:55
rm_workgreat00:55
johnsomPretty sure it was blocked on the werz issue where you couldn't actually restart it without the port going out to lunch00:56
rm_workwell... that isn't an issue now00:56
rm_work:300:56
rm_workI guess we need to add that to our huge list of TODOs00:56
johnsomUgh.  The topics they have for presentation tags....01:22
johnsom"smaug" (no longer named that), "astara" (no longer a project), DNS is on there twice...01:23
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johnsomOk, I am signing off for the evening.01:29
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rm_worklol sad02:09
rm_worknight02:09
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openstackgerritOpenStack Proposal Bot proposed openstack/neutron-lbaas-dashboard master: Imported Translations from Zanata  https://review.openstack.org/42919307:15
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