bdx | http://paste.ubuntu.com/24709556/ | 01:11 |
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bdx | hehehe | 01:11 |
bdx | anyone who can see whats going on there gets a gold star | 01:11 |
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kjackal | Good morning Juju world! | 07:15 |
BlackDex | hello there | 11:05 |
BlackDex | i'm getting this message | 11:05 |
BlackDex | ERROR some agents have not upgraded to the current model version 2.1.3.1: machine-1 | 11:05 |
BlackDex | i have a ha juju running | 11:06 |
BlackDex | and apperently one agent wasn't up/failed | 11:06 |
BlackDex | how can i fix this? | 11:06 |
SimonKLB | is it possible to run the etcd charm without persistent storage? | 11:23 |
SimonKLB | nvm, just skip the --to flag =) | 11:39 |
kwmonroe | hey lazyPower, arch question for ya... do you know why k8s went with etcd vs something like zookeeper? | 15:11 |
lazyPower | kwmonroe: 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 say | 15:11 |
kwmonroe | ah, roger dodger. just curious. not saying zookeeper is some kind of panacea by any stretch ;) | 15:12 |
lazyPower | kwmonroe: yeah, there was talk at one time of doing a libkv that would abstract the providers | 15:12 |
kwmonroe | something with a small footprint like https://jujucharms.com/hadoop-hbase/ would have fit the kv bill nicely. | 15:14 |
kwmonroe | because why have a microservice when you can just have 10 machines | 15:14 |
lazyPower | :) no comment | 15:14 |
kwmonroe | :) | 15:14 |
admcleod | kwmonroe: probably go vs java | 15:18 |
Budgie^Smore | o/ juju world! | 15:54 |
rick_h | what's up Budgie^Smore | 15:58 |
Budgie^Smore | not much, still evangelising juju in interviews :) | 15:59 |
rick_h | :) | 15:59 |
Budgie^Smore | had someone say the master / slave model is bad though :-/ | 16:00 |
Budgie^Smore | has anyone figured out what juju's performance is in terms of cpu & mem per host managed? | 16:02 |
rick_h | yea, 2.2 does a lot of work on that as it's a limiting factor in JAAS being effective | 16:03 |
rick_h | so there's regular testing of scalability and chattiness and such | 16:04 |
Budgie^Smore | yeah it is a limiting factor in any master / slave environment... is the testing documented anywhere? | 16:15 |
rick_h | Budgie^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^Smore | rick_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 out | 16:24 |
rick_h | Budgie^Smore: fair enough. I might take some time to show off the 2.2 improvements in a visible way or something. | 16:24 |
rick_h | Budgie^Smore: thanks for the nudge | 16:24 |
Budgie^Smore | rick_h no worries, just giving back the feedback that I am getting when talking about Juju :) | 16:25 |
rick_h | good stuff | 16:25 |
Budgie^Smore | rick_h at the very least it would be good to have documentation on scaling controllers beyond a minimal ha setup | 16:27 |
rick_h | Budgie^Smore: yes, that's firmly in my current working list | 16:27 |
rick_h | Budgie^Smore: I'm doing the troubleshooting, but the goal post-troubleshooting is to turn into the "best practices" for juju taking expected scale into account | 16:27 |
rick_h | Budgie^Smore: so look for "operating Juju" documentation | 16:27 |
rick_h | in the near future | 16:28 |
Budgie^Smore | rick_h is there anything else I haven't though about that is in your work list ? ;-) | 16:28 |
rick_h | Budgie^Smore: let's see, I've got some metrics, blogs posts, and 2.2 testing on my todo list :P | 16:28 |
urulama | Budgie^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 CPU | 16:32 |
urulama | (as an example) | 16:32 |
Budgie^Smore | urulama 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 week | 16:34 |
urulama | Budgie^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 :D | 16:35 |
Budgie^Smore | it is worth knowing that I am usually dealing with networks of systems in the 10k+ range | 16:35 |
urulama | we'll get there :) | 16:35 |
Budgie^Smore | urulama I don't doubt it, but I do think 10 masters for 10k system is not a bad ratio to start with | 16:36 |
urulama | hm. | 16:37 |
Budgie^Smore | but that depends if the controllers can share the world load or if HA is more a active / passive affair | 16:37 |
Budgie^Smore | work* | 16:37 |
urulama | HA doesn't do full load balancing atm | 16:38 |
Budgie^Smore | ah ... on the roadmap? | 16:38 |
urulama | yep | 16:39 |
Budgie^Smore | :P | 16:39 |
urulama | and not "some distant future" either :D | 16:39 |
Budgie^Smore | oh if you are talking being able to hand hyperscale it better not be :P | 16:39 |
urulama | but until then, current HA is not so much about scaling as it is about redundancy | 16:39 |
Budgie^Smore | handle* | 16:40 |
Budgie^Smore | sometimes I wish I was a stronger dev than I am, just this discussion has given me ideas :) | 16:48 |
NicolinoCuralli | hi 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 again | 21:52 |
NicolinoCuralli | i understand that becuase there is HA configuration it is not necessary to have a EIP : is it correct? | 22:36 |
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