/srv/irclogs.ubuntu.com/2017/05/30/#juju.txt

bdxhttp://paste.ubuntu.com/24709556/01:11
bdxhehehe01:11
bdxanyone who can see whats going on there gets a gold star01:11
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kjackalGood morning Juju world!07:15
BlackDexhello there11:05
BlackDexi'm getting this message11:05
BlackDexERROR some agents have not upgraded to the current model version 2.1.3.1: machine-111:05
BlackDexi have a ha juju running11:06
BlackDexand apperently one agent wasn't up/failed11:06
BlackDexhow can i fix this?11:06
SimonKLBis it possible to run the etcd charm without persistent storage?11:23
SimonKLBnvm, just skip the --to flag =)11:39
kwmonroehey lazyPower, arch question for ya... do you know why k8s went with etcd vs something like zookeeper?15:11
lazyPowerkwmonroe: that question has come up quite a bit on their lists, but with consul instead of zookeeper. I think it was because coreos was in there early and did that heavy lifting but its hard to say15:11
kwmonroeah, roger dodger.  just curious.  not saying zookeeper is some kind of panacea by any stretch ;)15:12
lazyPowerkwmonroe: yeah, there was talk at one time of doing a libkv that would abstract the providers15:12
kwmonroesomething with a small footprint like https://jujucharms.com/hadoop-hbase/ would have fit the kv bill nicely.15:14
kwmonroebecause why have a microservice when you can just have 10 machines15:14
lazyPower:) no comment15:14
kwmonroe:)15:14
admcleodkwmonroe: probably go vs java15:18
Budgie^Smoreo/ juju world!15:54
rick_hwhat's up Budgie^Smore15:58
Budgie^Smorenot much, still evangelising juju in interviews :)15:59
rick_h:)15:59
Budgie^Smorehad someone say the master / slave model is bad though :-/16:00
Budgie^Smorehas anyone figured out what juju's performance is in terms of cpu & mem per host managed?16:02
rick_hyea, 2.2 does a lot of work on that as it's a limiting factor in JAAS being effective16:03
rick_hso there's regular testing of scalability and chattiness and such16:04
Budgie^Smoreyeah it is a limiting factor in any master / slave environment... is the testing documented anywhere?16:15
rick_hBudgie^Smore: hmm, there's notes in the bugs/etc where things are identified but yea, nothing really to point to other than the various bugs as things are identified.16:22
Budgie^Smorerick_h it would definitely be useful to have since there is a fear that master / slave environments are not scalable, which we both know is bull and makes it impossible to auto scale in and out16:24
rick_hBudgie^Smore: fair enough. I might take some time to show off the 2.2 improvements in a visible way or something.16:24
rick_hBudgie^Smore: thanks for the nudge16:24
Budgie^Smorerick_h no worries, just giving back the feedback that I am getting when talking about Juju :)16:25
rick_hgood stuff16:25
Budgie^Smorerick_h at the very least it would be good to have documentation on scaling controllers beyond a minimal ha setup16:27
rick_hBudgie^Smore: yes, that's firmly in my current working list16:27
rick_hBudgie^Smore: I'm doing the troubleshooting, but the goal post-troubleshooting is to turn into the "best practices" for juju taking expected scale into account16:27
rick_hBudgie^Smore: so look for "operating Juju" documentation16:27
rick_hin the near future16:28
Budgie^Smorerick_h is there anything else I haven't though about that is in your work list ? ;-)16:28
rick_hBudgie^Smore: let's see, I've got some metrics, blogs posts, and 2.2 testing on my todo list :P16:28
urulamaBudgie^Smore: adding cpu cores scales how many units a controller can operate pretty much linearly. last updates to 2.2, a 8-core machine was able to run 1400 machines with 2300 units, using 10GB of RAM and 70% of CPU16:32
urulama(as an example)16:32
Budgie^Smoreurulama oh awesome, thanks :) that funnily enough is in line with the example of about 1000 slaves / master that I was talking about in an interview last week16:34
urulamaBudgie^Smore: there are some changes before RC1 is out, that will help lower CPU usage from what you've seen with 2.1.x even more. 2.2 will be awesome :D16:35
Budgie^Smoreit is worth knowing that I am usually dealing with networks of systems in the 10k+ range16:35
urulamawe'll get there :)16:35
Budgie^Smoreurulama I don't doubt it, but I do think 10 masters for 10k system is not a bad ratio to start with16:36
urulamahm.16:37
Budgie^Smorebut that depends if the controllers can share the world load or if HA is more a active / passive affair16:37
Budgie^Smorework*16:37
urulamaHA doesn't do full load balancing atm16:38
Budgie^Smoreah ... on the roadmap?16:38
urulamayep16:39
Budgie^Smore:P16:39
urulamaand not "some distant future" either :D16:39
Budgie^Smoreoh if you are talking being able to hand hyperscale it better not be :P16:39
urulamabut until then, current HA is not so much about scaling as it is about redundancy16:39
Budgie^Smorehandle*16:40
Budgie^Smoresometimes I wish I was a stronger dev than I am, just this discussion has given me ideas :)16:48
NicolinoCurallihi there: how can set an EIP on AWS for the controller at bootstrap phase? juju bootstrap set a dinamic public ip and if i reboot machin i can' login again21:52
NicolinoCurallii understand that becuase there is HA configuration it is not necessary to have a EIP : is it correct?22:36

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