Saturday, 2019-09-14

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openstackgerritMerged zuul/nodepool master: k8s: make context optional  https://review.opendev.org/68213007:21
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AJaegercorvus: your rename of check is a nice idea. Still, in most cases I need to remove templates as well...07:32
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openstackgerritAndreas Jaeger proposed openstack/openstack-zuul-jobs master: Start train translations  https://review.opendev.org/68220509:20
AJaegerianychoi: could you review this, please? ^09:20
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openstackgerritCarlos Goncalves proposed openstack/diskimage-builder master: Remove doc files and autoremove packages  https://review.opendev.org/67554610:34
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donnydSo I have been watching the logs for messages of not being able to connect to the mirror and I don't see any for the last 24 hours13:55
donnydI am going to mark this network issue solved.13:58
donnydI have also looked at all of the failures from the last 12 hours and from what I can see none of them are related to FN13:59
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openstackgerritAndreas Jaeger proposed openstack/project-config master: Switch project-config to promote jobs [1]: Disable publish  https://review.opendev.org/68221114:57
openstackgerritAndreas Jaeger proposed openstack/project-config master: Switch project-config to promote jobs [3]: Update building  https://review.opendev.org/68221214:57
openstackgerritAndreas Jaeger proposed openstack/openstack-zuul-jobs master: Switch project-config to promote jobs [2]: Update build jobs  https://review.opendev.org/68221314:57
openstackgerritAndreas Jaeger proposed openstack/openstack-zuul-jobs master: Switch project-config to promote jobs [2]: Update build jobs  https://review.opendev.org/68221314:59
openstackgerritAndreas Jaeger proposed openstack/project-config master: Switch project-config to promote jobs [1]: Disable publish  https://review.opendev.org/68221114:59
openstackgerritAndreas Jaeger proposed openstack/project-config master: Switch project-config to promote jobs [3]: Update building  https://review.opendev.org/68221214:59
openstackgerritAndreas Jaeger proposed openstack/project-config master: Switch project-config to promote jobs [3]: Update building  https://review.opendev.org/68221215:01
openstackgerritAndreas Jaeger proposed openstack/project-config master: Switch project-config to promote jobs [1]: Disable publish  https://review.opendev.org/68221115:03
openstackgerritAndreas Jaeger proposed openstack/project-config master: Switch project-config to promote jobs [3]: Update building  https://review.opendev.org/68221215:03
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fungidonnyd: that sounds like great news--thanks for checking!15:29
donnydfungi: next I am working on moving the object storage to all nvme15:29
donnydgranted there will be less available space, it will be much mo faster15:30
fungisounds awesome15:30
donnydthere is currently just under 1TB of object space used and around 1.6TB of actual space used. How long is our log retention planned to be?15:32
donnydI am trying to estimate how much storage I will need. Looks like about 8TB of space will be available in replica 2 and not sure how much if I go erasure coded15:33
donnydmaybe a bit more, but I need to ask swift if erasure coding is good for my use case15:33
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fungiwe were managing ~1 month of retention on a 14tb ext4 filesystem with a bit of breathing room (but not much)15:41
fungiso how much it takes to match that will depend on how many providers we spread it over15:41
fungiwe'd ideally like to have more retention, but for now we're (afaik) setting something like a 30-day expiration on objects we're writing15:42
clarkbthe goal was that spreading this out would get us back to 6 months but it is currently at 30 days15:45
clarkbcurrently spread between 6 regions15:46
clarkb(with maybe a seventh possible if wesortour ara for ceph)15:46
openstackgerritAndreas Jaeger proposed openstack/project-config master: Switch project-config to promote jobs [4]: Add promote jobs  https://review.opendev.org/68221415:49
donnydso it should be hitting somewhere around 4TB of space used15:50
donnydBased on current usage it will be somewhere between 4-4.515:51
openstackgerritAndreas Jaeger proposed openstack/openstack-zuul-jobs master: Switch project-config to promote jobs [5]: Update specs, cleanup  https://review.opendev.org/68221515:53
openstackgerritAndreas Jaeger proposed openstack/project-config master: Switch project-config to promote jobs [4]: Add promote jobs  https://review.opendev.org/68221415:54
fungioh, also it's possible the changes we made to drop the default ara shaves some off it15:55
openstackgerritAndreas Jaeger proposed openstack/project-config master: Switch project-config to promote jobs [6]: Remove publish-openstack-specs  https://review.opendev.org/68221615:56
openstackgerritAndreas Jaeger proposed openstack/openstack-zuul-jobs master: Switch project-config to promote jobs [5]: Update specs, cleanup  https://review.opendev.org/68221515:56
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openstackgerritAndreas Jaeger proposed openstack/project-config master: Switch project-config to promote jobs [3a]: DNM: Test building  https://review.opendev.org/68221715:59
donnydI think even worst case we should still be ok16:00
donnydSpinny drive make lots of heat, so getting rid of them really makes a difference here... also zoom zoom16:01
openstackgerritAndreas Jaeger proposed openstack/project-config master: Switch project-config to promote jobs [4]: Add promote jobs  https://review.opendev.org/68221416:02
openstackgerritAndreas Jaeger proposed openstack/project-config master: Switch project-config to promote jobs [6]: Remove publish-openstack-specs  https://review.opendev.org/68221616:02
openstackgerritAndreas Jaeger proposed openstack/project-config master: Fix dib job  https://review.opendev.org/68221816:08
AJaegerianw: do you want to update diskimage-builder to require flake8 and cut a new release or should we do it like above? ^ See https://review.opendev.org/682212 for the failure16:08
AJaegerclarkb, fungi, I just did my weekend fun hacking project: Switched specs-site and infra/index.html to promote jobs, topic:promote-project-config is something for reviewing next week ...16:11
fungidonnyd: well, also waste heat == electrical load, so reducing it means longer backup on ups, (slightly?) lower power bill, et cetera16:11
funginot to mention longevity on the storage since mtbf of moving parts is a lot worse16:12
fungiAJaeger: awesome, thanks!16:12
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donnydOh I totally forgot to say my generator fuel supply is being hooked up today, so that won't matter anymore either.. but yes more time on UPS16:13
donnydit costs 8 degrees to have the spinny servers up and running in my current setup... I about it a month it won't really matter for 6 more.. but in June/July/August it really matters16:14
fungiyeah, back when i had a basement office/lab/workshop with racks full of server and network hardware (and an ancient risc systems zoo), it stayed nice and toasty throughout the winter16:15
donnydCurrently my setup runs at 80F16:16
donnydwith the Storage servers down its 72-74F16:16
funginice!16:16
donnydSo my only option is to run swift as instance on Openstack... which isn't the best way to do it... but also costs a lot less $$$16:17
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fungii also had an auxiliary free-standing air conditioner i ducted out through a window panel to get by in the warm months16:17
donnydI should say instances (12 to be precise)16:17
donnydI used to use aux A/C, but I figured out that with the right amount of airflow it made very little in the way of difference in DC heat16:18
fungiand covered the insides of all the windows with aluminum foil to cut down on extra sunlight-induced heat during the day16:18
donnydLike 2 degrees... So I moved to a system that just moves a massive amount of air into the front (cool) side of the room, and the back side (hot) can either exhaust or recycle the air16:19
fungithe mini-crac was necessary in my case because the central ac in that townhouse was already undersized16:19
donnyddepending on the temps outside would determine the amount of recycle.. In winter its 90% recycle, in summer its 10% recycle16:19
donnydAh yes, that will do it16:20
donnydI really need to get my central A/C upsized.. Its on the list, but not currently critical16:20
fungiyeah, so do we. the one in this house is also not big enough to deal with the conditions here, though a lot of that is because we live right on the water and the whole structure is leaky so it's hard to keep our inside relative humidity below 50%16:22
fungithe whole place badly needs to be sealed and insulated16:23
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fungii'd love to get one with dedicated humidity control. it would come in really handy here16:24
donnydI am working on the swift nvme deployment, but its probably going to be a bit before its done16:24
donnydfungi that sounds $$$16:25
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fungiyeah, it will be16:25
donnydI have been trying to find a cost effective way to move some of this stuff offsite... but I am finding that to be impossible16:27
donnydI would even be ok with a little less scale... But I can't afford to pay someone else 4K a month for DC space16:28
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openstackgerritAndreas Jaeger proposed openstack/project-config master: Always publish infra documents  https://review.opendev.org/68222217:10
openstackgerritAndreas Jaeger proposed openstack/openstack-zuul-jobs master: Remove release-tox-docs-infra  https://review.opendev.org/68222317:11
openstackgerritAndreas Jaeger proposed openstack/project-config master: Always publish infra documents  https://review.opendev.org/68222217:11
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fungidonnyd: yeah, colocation is not cheap. more than a decade ago i recall the colocation company i worked for charged ~us$2k/mo for a half-cab, and that was with a fairly meager amount of complimentary network bandwidth18:00
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openstackgerritAndreas Jaeger proposed openstack/project-config master: Add promote pipeline to grafana  https://review.opendev.org/68222518:21
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openstackgerritMerged openstack/infra-manual master: Update bug status link.  https://review.opendev.org/67421819:43
donnydSo my generator is running, and I am about to start conducting tests to ensure it actually functions. Should we turn FN off or leave it on19:46
donnydI can just adjust quota down to zero so we won't need any code changes19:46
donnydbut I just wanted to know if we should test real world or not?19:46
fungiwell, if you don't have a strong expectation it's going to take the swift endpoint offline then it's probably fine19:52
fungiif you think you're probably going to lose power to it or need to shut it down for some reason we should temporarily stop writing logs there because it'll cause jobs to end in a post_failure19:53
fungihopefully soon we'll have a more robust retry mechanism in place for archiving logs to object storage19:54
donnydyea, so I reread the manual and I need to start testing with all of the loads off... so I think I will need to remove FN19:55
fungiokay, yeah i'm less worried about the nova endpoint but right now we're not very robust when it comes to handling archiving stuff to swift19:56
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openstackgerritDonny Davis proposed openstack/project-config master: Temp Shutdown of FN for backup generator testing  https://review.opendev.org/68222619:56
openstackgerritDonny Davis proposed opendev/base-jobs master: Temp Shutdown of FN for backup generator testing  https://review.opendev.org/68222719:58
donnydyea we don't need another oops with the swift stuff again19:58
donnyd:)19:59
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donnydthanks for being around today fungi20:08
donnyd:)20:08
fungiokay, those are approved and should hopefully merge in a few minutes20:08
fungihey, no thanks needed. it's just a few button clicks for me ;)20:08
fungi(well, keypresses, but who's counting?)20:08
donnydI am projecting it will be 2.5 hours till all the workloads are spun down and then 1.5 hours for the actual test20:08
donnydso it should only be a 4 hour outage20:09
fungithere's no rush... i'm heading out to eat shortly but will certainly be around again by then20:09
fungii'll happily keep an eye out for additional changes when you're ready to spin stuff back up20:10
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openstackgerritMerged opendev/base-jobs master: Temp Shutdown of FN for backup generator testing  https://review.opendev.org/68222720:14
openstackgerritMerged openstack/project-config master: Temp Shutdown of FN for backup generator testing  https://review.opendev.org/68222620:15
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donnydfungi: how long should i wait for the swift stuff to go active?20:27
clarkbthe swift change sgould take effect for new jobs that start after the merge20:35
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fungiyeah, there's somewhat of a half-life involved20:36
fungitechnically three hours is the maximum we allow builds to execute20:37
fungibut i wouldn't wait anywhere near that long20:37
fungiand if you shut down the compute nodes before all builds have completed, it's not the end of the world since they'll just be retried20:39
clarkbya its the weekend. now is fine20:39
fungii mean, there's a 25-change-long gate queue, but... meh20:39
donnydokie dokie20:40
fungiby 21:15 any builds which complete within an hour are clear from a swift perspective, which is the more touchy bit20:40
donnydWell the sooner I can do the tests, the sooner i can bring it back up to help out with that queue20:41
fungiwe strongly encourage projects to keep individual build times under an hour (ideally 45 minutes or less)20:41
donnydThe hope is that nothing actually goes down at all20:41
fungiand now i disappear to get dinner... bbiaw20:41
donnydwith the load gone, now my ups say I have 26 minutes... which they  should only be out of power for around 520:43
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donnydok, FN is running off generator power right noiw20:59
donnydlooks to me like it all stayed up21:00
donnydI have to let this run for the next 30 or so minutes to ensure everything is working properly. Then FN will be placed back into operation21:10
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donnydThere is one important cavet to my system... I can't run the A/C.... so depending on the weather time may be limited21:31
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prometheanfirerequirements gate is very finicky atm21:51
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openstackgerritDonny Davis proposed opendev/base-jobs master: revert "Temp Shutdown of FN for backup generator testing"  https://review.opendev.org/68223122:09
openstackgerritDonny Davis proposed openstack/project-config master: revert "Temp Shutdown of FN for backup generator testing"  https://review.opendev.org/68223222:11
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donnyd.ok gen tests done, FN is back online. I ran some quick validations to make sure everything is working. It did go down when it switched back to main power.  I am running down why22:16
fungidonnyd: cool! and i'm back from dinner errands22:47
fungiapproving the reverts now. lmk if i shouldn't22:48
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openstackgerritMerged opendev/base-jobs master: revert "Temp Shutdown of FN for backup generator testing"  https://review.opendev.org/68223122:54
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openstackgerritMerged openstack/project-config master: revert "Temp Shutdown of FN for backup generator testing"  https://review.opendev.org/68223222:57
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