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| jsheeren | hi all, with neutron rbac, is there a deny policy that can be used? | 09:15 |
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| openstackgerrit | Martin Mágr proposed openstack/osops-tools-monitoring master: Revert "Removes unnecessary utf-8 encoding" https://review.openstack.org/515334 | 09:40 |
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| openstackgerrit | Martin Mágr proposed openstack/osops-tools-monitoring master: python-psutil compatibility patch https://review.openstack.org/515353 | 10:30 |
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| lvdombrkr | olks, where can i found documentation how to upgrade from old openstack version to newer version (from Kilo->Liberty->Mitaka->Newton->Ocata?) | 14:05 |
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| rmart04 | Ivodmbrkr, Essentially you have got to do a lot of digging, release notes/upgrade notes are a good start | 14:08 |
| AlexeyAbashkin | lvdombrkr: for such long path it is better to set up brand new and move the workloads | 14:09 |
| lvdombrkr | AlexeyAbashkin: you mean, deploy new ocata/pike openstack, and than migrate workloads from existing Kilo? | 14:12 |
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| rmart04 | Do you have some examples of how you have ported your users infrastructure with this method AA? | 14:16 |
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| lvdombrkr | rmart04: i have same question | 14:22 |
| ckonstanski | The question of "how to upgrade openstack" is huge. You can upgrade one service at a time. (Yes upgrading is possible.) Perhaps you might want to pick a single service, let's say keystone, and focus on that. Some more specific questions will arise from the effort, and specific questions are easier to answer. | 14:24 |
| ckonstanski | Definitely practice in a lab first. | 14:25 |
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| rmart04 | On that not ckonstaski, is there any documentation of compatability between component and their versions? I.E cinder newton <> nova Liberty etc? | 14:26 |
| rmart04 | note* | 14:26 |
| rmart04 | I’ve not come accross any, but would be interested if that was available! | 14:26 |
| ckonstanski | So would I. If it exists, I would have to google for it. Not an "insider", just an openstack user. I have had one particular experience with glance. I was trying to upgrade glance from mitaka to newton. It turned out to be impossible because cinder was still on mitaka and there was a dependency in there somewhere. If dependency issues arise, they will likely be of the devil-in-the-details sort. Start with the core services and work your | 14:29 |
| ckonstanski | way out. And only jump one release at a time. | 14:29 |
| rmart04 | Oh, were you running from packages on nodes with co-located services? | 14:30 |
| ckonstanski | Actually we had all the services dockerized. That made upgrades much simpler. We only had to worry about the database and config files. (The config files were volume-mounted on the host.) | 14:32 |
| AlexeyAbashkin | lvdombrkr: yes. set up new cloud, recreate tenant/user/role tree and copy VMs with volumes with network.... | 14:33 |
| lvdombrkr | ckonstanski: actually right know we have two openstack clouds, production on KILO, and second one in test lab Ocata. yesterday u tried for test purposes to migrate some DB etc. from Kilo to Ocata but without any success and it actually ) in production we have about 350 instances right now... so my question is how to better upgrade till Ocata with minimum downtime | 14:33 |
| ckonstanski | Bad news: that's too big of a jump. To upgrade that kilo cloud in place you will have to upgrade it 4 times, jumping one release each time. | 14:34 |
| yankcrime | rmart04 anecdotally i can say that pike horizon, ocata {keystone,glance,cinder}, and liberty {neutron,nova} all worked fine together | 14:35 |
| yankcrime | i've never come across any definitive "compatibility matrix" though, at least not from an operators perspective | 14:35 |
| yankcrime | might be worth trying to compile one | 14:35 |
| AlexeyAbashkin | rmart04: all my customers use ldap for identity... assignments, by turn, is copied via dump/restore | 14:35 |
| yankcrime | as long as you're within range of a major API version though you should be fine, in my experience | 14:35 |
| yankcrime | so the one pre-req to that arrangement working together was getting to keystone v3, which we did before departing kilo | 14:36 |
| rmart04 | It’s too easy to blink and realise you are a bunch of releases behind… thanks YC, thats helpful. I think that could be really useful, I guess its very difficult to be 100% sure on compatability with so many features/options, enough to commit to, for other operators to rely on anyway! | 14:36 |
| yankcrime | the best you can do is come up with a bunch of tests which replicate customer's deployment scenarios that you then run through yourself at each stage | 14:37 |
| yankcrime | i mostly found that either stuff broke in a fairly profound fashion, or it worked | 14:38 |
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| lvdombrkr | AlexeyAbashkin: so in this scenario i need to copy all VMs networks manually with downtime, yes? | 14:40 |
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| lvdombrkr | yankcrime: what you think about AlexeyAbashkin suggestion? | 14:42 |
| rmart04 | I guess no-one said it would be easy! | 14:42 |
| lvdombrkr | rmart04: unfortunately ... | 14:43 |
| rmart04 | At least a lot of the older docs are a bit more accessible now, configuration references etc, that helps | 14:44 |
| lvdombrkr | nice to be listen best practises from folks | 14:44 |
| yankcrime | lvdombrkr i suspect AlexeyAbashkin's approach might be the best | 14:44 |
| AlexeyAbashkin | lvdombrkr: why with dowm time? just recreate all supporting stuff and then move the VMs (with down time) | 14:45 |
| yankcrime | for such a big jump | 14:45 |
| lvdombrkr | AlexeyAbashkin: yes i mean VMs with downtime, sorry for type | 14:46 |
| AlexeyAbashkin | and yes. it is not easy. but it easier than runnig K->L->M->N->O in-place and getting API/RPC incompatibility :-) | 14:46 |
| lvdombrkr | AlexeyAbashkin: agree, but migrate 350 VMs also not a sweet job | 14:49 |
| AlexeyAbashkin | we did it for 2500 :-) yes, it is looooong time | 14:49 |
| rmart04 | Do you have a ceph backend? You might be able to use the same ceph backend, and just import the volumes in the new side, rather than copy the data around | 14:50 |
| rmart04 | I guess same goes for any shared storage? | 14:50 |
| AlexeyAbashkin | yes. shared storage helps a lot | 14:51 |
| lvdombrkr | AlexeyAbashkin: yeah we use ceph.... nice idea | 14:52 |
| AlexeyAbashkin | not mine. thanks to rmart04 :-) | 14:52 |
| lvdombrkr | rmart04: thanks ))) but it is possible import cinder volumes from Kilo DB to Ocata DB?? | 14:54 |
| rmart04 | Isn’t there a action to take ownership of an existing volume | 14:54 |
| rmart04 | ‘cinder manage’ was the old cli option | 14:54 |
| AlexeyAbashkin | you need to be careful with foreign keys in DB | 14:55 |
| rmart04 | Interesting convo, gotta shoot, will catch up on eaves drop. Thanks guys. | 14:56 |
| lvdombrkr | rmart04: thanks in assist | 14:57 |
| rmart04 | np | 14:57 |
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| lvdombrkr | AlexeyAbashkin: thanks, any other things to pay attention or double-check? | 15:02 |
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| AlexeyAbashkin | try on staging environment first :-) | 15:06 |
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| lvdombrkr | by the way this is right channel to ask such a questions? (i mean about upgrades) | 15:08 |
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| VW | hey folks. Anyone around for the LDT meeting? | 16:00 |
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| VW | going to kick it off and give people a few | 16:01 |
| VW | #startmeeting Large Deployments Team | 16:01 |
| openstack | Meeting started Thu Oct 26 16:01:29 2017 UTC and is due to finish in 60 minutes. The chair is VW. Information about MeetBot at http://wiki.debian.org/MeetBot. | 16:01 |
| openstack | Useful Commands: #action #agreed #help #info #idea #link #topic #startvote. | 16:01 |
| *** openstack changes topic to " (Meeting topic: Large Deployments Team)" | 16:01 | |
| openstack | The meeting name has been set to 'large_deployments_team' | 16:01 |
| VW | got an etherpad set up - https://etherpad.openstack.org/p/LDT_meeting_notes | 16:01 |
| VW | please add your name if you are here for the meeting | 16:02 |
| VW | but I think most folks are tied up elsewhere | 16:02 |
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| VW | looks like no one is available. | 16:34 |
| VW | #endmeeting | 16:34 |
| *** openstack changes topic to "Discussion of topics related to operating Openstack infrastructures at scale | Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators | Logs: http://eavesdrop.openstack.org/irclogs/" | 16:34 | |
| openstack | Meeting ended Thu Oct 26 16:34:08 2017 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4) | 16:34 |
| openstack | Minutes: http://eavesdrop.openstack.org/meetings/large_deployments_team/2017/large_deployments_team.2017-10-26-16.01.html | 16:34 |
| openstack | Minutes (text): http://eavesdrop.openstack.org/meetings/large_deployments_team/2017/large_deployments_team.2017-10-26-16.01.txt | 16:34 |
| openstack | Log: http://eavesdrop.openstack.org/meetings/large_deployments_team/2017/large_deployments_team.2017-10-26-16.01.log.html | 16:34 |
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