#arpnetworks 2013-10-11,Fri

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WhoWhatWhen
mnathanimike-burns: jbergstroem: thanks [00:29]
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plettmnathani: The first thing I did when moving from screen to tmux was to rebind tmux to be on ctrl-a. Not only because that's what I'm already used to, but ctrl-b is a bit of a stretch [01:55]
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mike-burnsFun fact: the ctrl-b binding was chosen because the tmux author built tmux while inside of GNU screen. [01:56]
mnathanimike-burns: That is funny
plett: I prefer not to modify default bindings so I dont have to spend time configuring tmux when using a new *nix box
[01:59]
plettmike-burns: I picked ctrl-x as a "not ctrl-a" prefix for when I need to deal with nested screens [02:01]
mike-burnsYou must not be an emacs user! [02:01]
plettThat is correct
mnathani: The first thing I do on a new machine is a git pull of my dotfiles repo
[02:01]
mnathaniIs there any benefit from mapping caps lock to be ctrl ? [02:04]
mike-burnsIt reduces the urge to shout at people. [02:04]
bryceclol, some say it's more convenient too
(keeping your finger on the home row rather than reaching down to the bottom row)
[02:04]
mike-burns(I also find it convenient.) [02:05]
plettI have "/usr/bin/setxkbmap -option terminate:ctrl_alt_bksp -option ctrl:nocaps" in the xinitrc in my dotfiles repo
So I have two ctrl keys after that
[02:05]
brycecFun fact: I prefer using ` as my binding for tmux. 1 key vs 2 is a HUGE difference in usability :D
Yep
[02:05]
plettI set that up a few months ago, but I haven't yet trained my brain to use to the "capslock" control key instead of the one on the bottom row [02:06]
mike-burnsI know some vim users who set ctrl = ESC. [02:06]
brycecB-b-b-but META = ESC. THOSE MONSTERS
Seriously though, think about using ` as your bind key. Sooooooo much better. (And if I have a nested tmux, I just hit `a
)
[02:06]
plettWhile we're on about dotfiles, I've been meaning to do this rather than manually symlinking the dotfiles I need on each machine
http://brandon.invergo.net/news/2012-05-26-using-gnu-stow-to-manage-your-dotfiles.html
[02:07]
brycecMeh, I don't setup a new machine that often. A few symlinks here and there is just peachy.
brycec only has about 5 or 6 machines
[02:07]
plettSame here [02:08]
brycec(on which he cares about keeping his dotfiels)
aight I'm off again.
*whoosh*
[02:08]
BryceBotBye brycec! [02:08]
plettI've been considering (ab)using puppet to push my dotfiles out to every linux box at work [02:09]
mike-burnsplett: I use https://github.com/mike-burns/rcm for managing my dotfiles. [02:09]
mnathaniDo you guys ever share screen / tmux sessions when working with other people? [02:10]
mike-burnshttp://mike-burns.github.io/rcm/ - the man pages.
mnathani: I sometimes do remote pair programming with screen.
http://bit.ly/164zZAj - this is the guide I follow.
[02:10]
plettmike-burns: Thanks. I'll look at what you do with rcm [02:14]
mike-burnsrcm was my "can we stop reinventing this each time please?" reaction to everyone's install.sh/Makefile/Rakefile in their dotfiles repo. [02:15]
plettmnathani: Not regularly. Most people I need to share things like that with aren't able to comprehend command prompts, so it's something like logmein or teamviewer
mnathani: In my experience, people who can understand shells and command prompts to the extent where showing them something in a shared tmux/screen would be useful are also capable of following written instructions instead
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brycec is now known as tmux
tmux is now known as brycec
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brycecoy up_the_irons having weird ipv6 issues all of a sudden [11:51]
staticsafewhat sort of issues? [11:51]
toddfweird seems hard to characterize [11:51]
brycec(might be me, but wanted to put the word out in case it's bigger than just me. In case it's a repeat of yesterday) [11:51]
toddf@google weird ipv6 issues [11:52]
BryceBot0 total results returned for '', here's 0 [11:52]
brycecwell for instance that
In this case - my ssh/tmux session totally froze. And new connections would just hang... but IPv4 went through no probelm
*problem
[11:52]
staticsafecan you do a mtR? [11:53]
brycec(This behaviour is the same as I've seen when trying to push big packets. Small packets are fine, big packets choke.)
ewwww HE's SJC node is dropping it like it's HOT
[11:53]
toddfhot potato! [11:54]
brycecup_the_irons: seems to be an HE issue
up_the_irons: so... nevermind I guess.
(still hanging, even though I'm not seeing any more packet loss from HE)
[11:54]
toddftry some form of icmp path mtu discovery [11:55]
brycec@google icmp path mtu discovery [11:56]
BryceBot15,100 total results returned for 'icmp path mtu discovery', here's 3
Path MTU Discovery - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Path_MTU_Discovery) Path MTU Discovery (PMTUD) is a standardized technique in computer ... and send back an Internet Control Message Protocol (ICMP) Fragmentation Needed ...

Path MTU discovery - Wikipédia (http://fr.wikipedia.org/wiki/Path_MTU_discovery) Si les messages ICMP type 3 / code 4 sont filtrés, la PMTUd échoue. Les hôtes tentant d'effectuer la PMTUd persisteront à envoyer des paquets trop gros qui ne  ...
Path MTU Discovery and Filtering ICMP (http://www.znep.com/~marcs/mtu/) Jan 18, 1998 ... This document explains the details of how path MTU discovery (PMTU-D) combined with filtering ICMP messages can result in connectivity ...
[11:56]
toddfhttp://pastebin.ca/2465744 [11:56]
brycecoh clever [11:56]
toddfbe sure thats ksh not sh ;-)
may have bits specific to openbsd, have not tried elsewhere, yada
[11:57]
bryceclooks mostly compatible with bash
thanks toddf
[11:57]
toddf(( i++ < stop )) is ?
yeah, I've used this countless times
[11:57]
brycec(Step 1: Install ksh) [11:58]
toddfyou could probably switch it to bash albiet a bit more klunky.. while (( i++ < stop )); do .. probably maps to while [ $i -lt $stop ]; do let i=i+1 ..
or you might even have to do 'let i=$i+1' not sure
[11:59]
brycecbam
1234
1233 good, 1234 and up bad
super script toddf
[12:04]
toddf;-)
now the question is, which hop is it bad at? ;-)
[12:05]
brycecwhich just leaves the question - who do I bitch do
*to
heh
[12:05]
toddfyou can use it to various routers along the path to determine who's restricting you (I'd start with the 1st, 2nd, etc hop) [12:05]
brycecbrycec nods
aaaand everything's working now
Guess if it's all working now, I can shut off the alarm bells.
Thanks for walking me through it toddf
[12:06]
toddf;-)
you're still broken, you just have a very specific definition of what is broken, and its likely not arpnetworks ;-)
[12:10]
brycecGiven the 50% loss I was seeing on HE, (and that my transit was 100% HE) I'm pretty sure I know who to blame
*whom
(I swear I grammar good)
[12:12]
m0undswhat's funny is that most people would see the sentence and think it was correct until you corrected yourself [12:23]
bryceclol
I'm guilty of ending sentences with preopositions... but I do it anyways because people look at you funny if you rearrange the sentence appropriately.
[12:24]
m0undsi do it all the time. i don't really care if other people are appalled :) [12:25]
pedants be damned [12:31]
toddflanguage evolution: abuse of the language becomes normalized [12:32]
brycecFor instance, the word "moot"
A total 180 from its original meaning
Boggles the mind to realize that it has taken on the precisely opposite meaning
[12:33]
toddfaint [12:33]
brycecI use aint. Nothin' wrong with it.
I also use y'all... Way more eloquent than saying "you all"
[12:35]
toddfwhen I was growing up, teachers would say "aint aint a word" and prove it by not finding it in the dictionary. my wife takes great pleasure in finding it now. [12:36]
bryceclol I remember teachers saying the same.
"Ye" isn't a word either, yet people use it all the time. (It's a mispronounciation of "the" written with a character we think to be a "y")
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anthttp://www.webhostingtalk.com/showthread.php?t=1302567 [14:22]
mike-burnsbrycec: "ye" was a word, but not a definite article. It was a form of "you". [14:24]
toddfant: hahahaha [14:27]
brycectouche mike-burns
However, its most common modern use is in "ye old inn", used as an article :p
[14:32]
mike-burnsOh sure. It's not really a 'y' but a y-shaped character there, as you said.
A thorn after many evolutions.
[14:34]
brycecYeah that's it (I couldn't recall its name) [14:34]
mike-burnsIcelandic still has the letter. So far as I know it's the only language that kept it.
(I gave a lightning talk on thorn, "ye", "the", and "thou" at my last company retreat.)
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brycecup_the_irons might be interested to see this Chunkhost vs ARP disk IO wait time https://dl.dropboxusercontent.com/u/3167967/screenshot_2013-10-11_15-36-26.png [15:37]
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up_the_ironsbrycec: :) [15:44]
brycecI know, it doesn't take much to beat them ;) [15:44]
m0undsmy graphs are misleading (arp vps)
because they're really variable but when you look at the values, you laugh
hahahaha
average iowait: 2.6ms
today's avg is 1.08ms
the high value for today is 2.71
good stuff
[15:44]
up_the_irons"$1,000 bonus if cogent agree to drop our contract without further payments" [15:45]
brycec2.71ms? or s? [15:45]
up_the_ironsant: LOL [15:45]
m0undsms
16:45 < m0unds> average iowait: 2.6ms
16:45 < m0unds> today's avg is 1.08ms
[15:45]
brycecNo units 15:45:19 < m0unds> the high value for today is 2.71 [15:46]
m0undsoh
ms
haha
[15:46]
brycecAnd sadly, as you can see from my graph, 2s is feasible (on $competitor) [15:46]
m0undsyeah
that's been my experience too
either really inconsistent (fast, then excrutiatingly slow) or consistently mediocre for too much money
[15:46]
brycecI'm excited because I have just one final service to migrate and then I can wipe my old VPS [15:48]
m0undsnice [15:48]
brycec(Unfortunately it's likely to be the most annoying - VPN server. And I set the server name on most clients to the fqdn of the old host, so I'm going to have to steal its fqdn to move the clients over.)
(which means fun with DNS propagation too)
(wish I'd just used vpnserver.domain.com or some such)
[15:49]
m0undshahaha
when i'm transitioning stuff off a box, the old one invariably gets "dingus.domain.tld"
[15:53]
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up_the_ironsbrycec: so is BryceBot now on your ARP VPS? :) [17:08]
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brycecyes up_the_irons
Should be quicker overall
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avjanyone using virtio on their openbsd vps?
i was wondering if i should switch to it
[18:39]
brycecI've used it privately
And there is a *significant* boost in throughput
[18:41]
avjinteresting [18:44]
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brycecThe difference between virtio and basic ide emulation was the difference between a 5 minute openbsd install and a 30 minute install. (A lot of time spent on formatting) [18:47]
staticsafevirtio <3 [18:49]
lteoum, how does one switch to it? :) [18:50]
avjawesome! i don't generate a lot of disk-bound activity, but i figured i'd get it going since i've been sticking to -current snapshots about once a month
i think something needs to be changed in the kvm config for each instance, lteo
based on one thing i just read a few moments, of course
[18:50]
lteoah [18:51]
brycecCorrect. Just a quick, simple change in the kvm config. Assuming that you're using DUID in fstab, then it will all come back up peachy keen. [18:53]
avjdo you know if it needs to be a coordinated switch, bryce? or is it something i can request be done and handle myself with a hard power down and up
i have zero experience with kvm
[18:56]
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up_the_ironsyour vps has to be on >= kvr27
also
iirc
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avjwell ploppers, i'm on kvr26 [19:14]
bryceclol well I'm sure up_the_irons will be happy to move you. But it's going to involve some coordinated downtime :p [19:14]
avjmy vps is also criminally underused, so i don't think i need to worry about any performance issues
of course :)
good lord, i've only used 23GB of bandwidth since Oct 2012
[19:15]
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m0undslol
total data xfer since jun - 1.46GB
[19:28]
avjanother insanely-heavy user, i see [19:33]
m0undsthere's a bunch of us [19:44]
avji'm sure [19:48]
m0undsiirc, there was someone else who hit an unbelievable 8GB since january [19:49]
avjit's like a terrible version of #idlerpg, but one that costs real money [19:50]
m0undshaha [19:50]
avjmonthly awards should be given to the users who utilize the fewest resources while maintaining a machine that's actually booted up
man, i think i just found my next great idea
now i just need to find people who hate their money
idlevps.com isn't registered! see you suckers on my yacht
[19:52]
m0undshahahaha [19:55]
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hazardouswat
hahaha what
man
rx / tx / total / estimated
today 15.73 GiB / 63.73 GiB / 79.46 GiB / 87.41 GiB
[21:57]
brycectoday 121.33 MiB / 156.88 MiB / 278.21 MiB / 302 MiB
lol
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