#arpnetworks 2013-03-25,Mon

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WhoWhatWhen
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dominiclHi.
How can I contact the Sales guys?
[05:07]
antdominicl: i would try sales@arpnetworks.com [05:08]
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[05:46]
vinany Tech Support here?
I need my account be upgraded
[05:56]
staticsafevin: send an e-mail to support@ [05:58]
dominiclare there any staff here at all?
it seems arpnetworks is a one man team too..is that true?
[05:59]
staticsafeit is
the topic says so even
[05:59]
dominiclah ok, so support is slow sometimes? [06:01]
staticsafeindeed, also up_the_irons is in PST timezone so mind that [06:02]
dominiclhm, wondering whether to sign up or not [06:02]
staticsafei haven't had to contact support yet for any reason ;) [06:03]
dominiclah right [06:03]
jpalmerI contacted support once, to add more VPS's :) [06:13]
dominiclnice [06:13]
jpalmerdominicl: IMO: if you are good with admin, the support thing isn't much of an issue. if you occasionally goof up and need "hands on" then.. ARP may not be the best choice for ya.
just my opinion of course.
[06:14]
staticsafestaticsafe agrees [06:14]
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vinhmm thats why its called unmanaged service [06:36]
GluffiSpretty stable, 6:42AM up 647 days [06:42]
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brycecbrycec waits for up_the_irons to reappear
he's been gone awhile...
[19:21]
milkidun dun DUUUN [19:22]
mercutioi'm still wondering when ntt link will come up [19:22]
brycecbrycec just imagines milki as "Belt" from The Croods [19:22]
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[21:16]
up_the_ironsjeez, i was netsplit for an entire day; had to reset weechat [21:17]
staticsafe:P [21:22]
brycecohai up_the_irons
welcome back!
[21:26]
up_the_ironsmike-burns is still in the vortex... [21:26]
brycectsk tsk [21:26]
up_the_ironshe was the last remaining nick in the split channel [21:26]
brycecoh there was an entirely separate channel created in the split?
Pretty intense... usually the netsplit server will either rejoin or kick everyone
Must've been pretty bad to have a split-brain come up
[21:27]
staticsafecertain servers were isolated from the network
Freenode was getting DDoSed yesterday
[21:28]
brycecyep, but they usually figure out they're disconnected and boot everyone to force 'em back to a live server [21:28]
up_the_ironsyeah the channel never rejoined [21:28]
brycecWell you're back, and responding to tickets *nudge nudge* so that's all that matters
:D
brycec just wants to try out the gbe link
[21:29]
up_the_ironsbrycec: i actually *am* replying to yours at the moment... [21:30]
brycecyay! [21:30]
up_the_ironsbrycec: can u give your vps a hard reboot now? [21:30]
brycecyep, gimme two shakes to pull up vnc...
(vnc to enter the encryption key)
[21:30]
up_the_ironsk [21:32]
brycecgoing down...
powered off...
booting...
bios...
[21:34]
up_the_ironsneat [21:35]
brycecbrycec wonders what's taking the bios so long...
grub...
decrypted...
booting...
oooh eth1
[21:35]
up_the_ironshaha [21:37]
brycecit's very quiet on eth1... [21:38]
mercutioup_the_irons: how's the ntt circuit coming along?
mercutio has had bad routing for a while now :(
[21:38]
up_the_ironsmercutio: in provisioning stage
brycec: should be extremely quiet
i think only 1 other person has a direct link
brycec: i just sent the ticket reply
[21:39]
brycecbrycec just received the reply [21:40]
up_the_ironsup_the_irons m/ [21:40]
brycecThanks up_the_irons !
fwiw NFS has generally been rock solid for me. I swear by it.
[21:40]
up_the_ironsbrycec: np, does it work? :)
brycec: which version of NFS?
[21:40]
mercutiobrycec: with linux? [21:40]
up_the_ironsand on which platform?
linux/freebsd/...
[21:40]
mercutiomost people swear at it. [21:41]
up_the_ironshahhhahahahah [21:41]
brycecup_the_irons: nfsv3 (v4 was a nightmare..) on linux, freebsd, and osx [21:41]
mercutiostale nfs handles [21:41]
brycec(though osx has some weirdness...) [21:41]
up_the_ironsok, i'll note the v3 [21:41]
mercutioAbout 479,000 results (0.24 seconds) [21:41]
up_the_ironsi think the last i tried was v4 [21:41]
brycecv4 has bells and whistles... but is really complicated compared to v3 [21:41]
up_the_ironsi c [21:42]
mercutiothat said most of my linux nfs problems were years ago [21:42]
brycecAnd v4 wasn't supported by the centos 5.x install environment, so I had to roll bacjk [21:42]
mercutioand mostly to do with reboots.. [21:42]
brycecbrycec does craploads of netinstalls [21:42]
mercutioi used to use nfs mounted / [21:42]
brycecI still do
my testbench is 100% netboot (because fuck drives)
[21:43]
mercutiocool [21:43]
up_the_ironslol [21:43]
mercutioi used to do remote X too [21:43]
brycecheh, X... what a b/w whore. [21:44]
mercutiothin clients kind of fell out of [21:44]
brycecI recently used NX (NoMachine) and that is very, very slick [21:44]
mercutioi've lost the word [21:44]
brycecfashion?
use?
[21:44]
mercutioyeh that'll do
i just used it on lan
I tried over DSL
it's pretty bad.
actually xterm is ok
[21:44]
brycecheh yeah... if it's a small window [21:44]
mercutiogtk applications are terrible
gnome-terminal is probably terrible
[21:44]
up_the_ironsbrycec: let me know if you have ping6 that link local address i gave ya [21:45]
brycecup_the_irons: From fe80::5054:ff:fe2b:8374 icmp_seq=1 Destination unreachable: Address unreachable [21:45]
mercutioon that note, has anyone had much luck running X on windows? [21:45]
brycecbrycec had to look up and find that he needed -I eth1 for LL [21:45]
up_the_ironsbrycec: yep, i missed up.. another hard reboot plz :) [21:46]
brycecboooo okay [21:46]
up_the_ironsbrycec: for the ping, you just qualify the v6 address with the interface, like:
ping6 fe80::5054:ff:fe89:c122%vlan71
[21:47]
brycecgoing down.... [21:47]
up_the_ironsin that case, the int name is vlan71, but you would do like "%eth1" [21:47]
brycecYeah % should work too
going up...
I appreciate that the BIOS gives me a fighting chance to hit F12.... but sometimes it's annoying
[21:47]
up_the_ironsi set it for 15 seconds... i didn't want to make it too long, cuz then all boot times are higher [21:48]
brycecheh
up_the_irons: no-go still
So just to be clear - this vlan is shared among other hosts (potentially),r ight?
(ie. I should firewall it accordingly)
[21:49]
up_the_ironsbrycec: yes, firewall it if need be
brycec: what's your link-local side addr?
[21:50]
brycec21:45:13 < brycec> up_the_irons: From fe80::5054:ff:fe2b:8374 icmp_seq=1 Destination unreachable: Address unreachable
fe80::5054:ff:fe2b:8374
brycec tcpdumps...
[21:51]
up_the_ironsup_the_irons ponders... [21:53]
brycec(and no, I don't have any firewalling active)
(yet)
[21:53]
up_the_ironsOH
i know
[21:57]
brycecifconfig vlan71 up
:p
[21:58]
up_the_ironsbrycec: try now :) [21:59]
brycechey, you're pinging [21:59]
up_the_ironswoo
64 bytes from fe80::5054:ff:fe2b:8374: icmp_seq=410 ttl=64 time=0.595 ms
64 bytes from fe80::5054:ff:fe2b:8374: icmp_seq=411 ttl=64 time=0.625 ms
64 bytes from fe80::5054:ff:fe2b:8374: icmp_seq=412 ttl=64 time=0.583 ms
[21:59]
brycecwoo fast!
I was about to complain that I was still seeing 100mbps speeds, but I decided to retry with a ramdisk as the destination instead
damnit... cache
sent 244559550 bytes received 31 bytes 12541516.97 bytes/sec
still 100mbps
(to a tee)
fuck
ignore me...
brycec was still on the old public iface
[22:01]
up_the_ironslol
i have our ISO volumes replicated over that link, so i know it is f'in fast :)
[22:02]
brycecheh
sshfs is being a little bitch with the whole %eth1 bit
[22:05]
up_the_ironshah [22:05]
brycechush you, mr "let's be progressive here" :p
"If host is a numeric IPv6 address, it needs to be enclosed in square brackets."
-.-
rtfm ftw
okay okay okay, real performance now...
[22:06]
up_the_ironsLOL [22:07]
bryceccopying from the backup server to a ramdisk, just over 100mbps
sent 244559550 bytes received 31 bytes 13219436.81 bytes/sec
[22:08]
up_the_ironsyeah, you get used to the square brackets if you do enough ipv6. apache does the same thing. [22:08]
bryceccopying to the backup server, sub-100mbps. sent 244559555 bytes received 31 bytes 9228663.62 bytes/sec [22:09]
up_the_ironsbrycec: just do a straight scp of some huge file, you should see like 500 mbps (i haven't found a single stream go faster than that, it might be an mtu thing or w/e...) [22:09]
brycecthis might be a dumb question, but can I set the mtu to 9000 on the iface? [22:09]
up_the_ironsi think u can [22:09]
bryceci would be used to [], except all my ipv6 is config'd by slaac (or manually, which is sans-[]), using hostnames, or ssh (or ping6 or nmap) which don't mind it sans-[]
yep, mtu set to 9000 and ping still works...
[22:10]
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brycecavg speed still 100mbps. The first 111MB went at 40MB/s, then it stalled for 5 seconds, and it was never as quick
seems like I starved your cache or something
s/starved/exhausted/
(that was vps->backup)
s/vps/vps-ramdisk/
backup->vps-ramdisk was much, much quicker (probably still in the server's cache), 40MB/s
[22:12]
up_the_ironsbrycec: 40MB/s =~ 320 Mbps
brycec: i just up'd the mtu on both sides on my end, btw
brycec: so give it another try
[22:14]
brycec(oh yeah, both ends... heh)
hmm something broke
ssh is hanging mid-negotiation
(they connect, but die during handshaking and such)
[22:15]
up_the_ironshmm.. ping still works [22:16]
brycecI've seen this before
when the MTU was too high
[22:16]
up_the_ironso'rly? [22:16]
brycecpackets started dropping over a certain size
probably the mtu
it's google'able
http://www.snailbook.com/faq/mtu-mismatch.auto.html
(tcpdump shows it constantly retrying)
(feel free to abuse ssh and try logging it)
[22:16]
up_the_ironshmm.. i wonder if the taps and br's also need to be changes
damn lots of changes
[22:18]
brycecheh, could be [22:19]
up_the_ironsbrycec: give it another try, just to see if it doesn't stall (changed your tap mtu to 9000) [22:19]
brycechangin' [22:19]
up_the_ironsbrycec: one more time [22:19]
brycecjust went through
yep, connects now
[22:19]
nixbaghurray! [22:20]
up_the_ironsoh hey nixbag , how's missouri? [22:20]
brycecvps-ramdisk -> backup server 23.3MB/s (186mbps) [22:20]
nixbagup_the_irons: i'm back in LA now. [22:21]
up_the_ironsi wonder if kvm networking is just hitting some cap
nixbag: that was 2 weeks??
man time flies
[22:21]
brycecoh hell...
up_the_irons: my ssh has frozen, and vnc "Faield to connect to server"
(this happened as I started a backup->vps scp)
[22:21]
up_the_ironsbrycec: hmm [22:22]
brycec(and needless to say, no response to pings) [22:23]
up_the_ironsbrycec: your vm appears stopped
i guess it crashed :o
[22:24]
brycecwell I didn't stop it... [22:24]
up_the_ironsi just started it for ya
hmm.. musta died then
[22:24]
brycecthx (I hit Boot too) [22:24]
up_the_ironshaven't seen that very much, but then again we're experimenting with new stuff... [22:24]
brycecLet's try this again! [22:25]
dr_jklow. i think i have arthritis :/ [22:27]
brycecbrycec really ought to setup the console too [22:28]
nixbagup_the_irons: we cut the trip short because of incoming snow storms. [22:31]
brycecup_the_irons: I'm seeing 40MB/s both directions pretty consistently :D
that is nice and fast
[22:32]
up_the_ironsbrycec: oh sweet
brycec: i need to find a way to get those MTUs persistent on your tap / br cuz when you reboot the interface is created a-new
[22:33]
dr_jklopenbsd is fun. [22:34]
brycecoh goody... "Just don't reboot"
brycec had a lovely 130+ day uptime before this
[22:34]
up_the_ironsbrycec: i made an adjustment, can u plz retest?
brycec: pfff.. weak sauce
$ ssh kvr06 uptime
21:56:59 up 1154 days, 18:50, 1 user, load average: 1.16, 1.26, 1.83
$
i hope it doesn't now crash tonight...
[22:36]
brycecup_the_irons: well I'm sorry I only recently signed up :P [22:36]
nixbagyou jinxed it. [22:36]
up_the_ironsbrycec: lol [22:36]
brycecbackup->vps(ramdisk) 46.6MB/s, vps(ramdisk)->backup 38.9MB/s [22:37]
up_the_ironsso still good? [22:38]
brycecI'm happy [22:38]
up_the_ironscool, appears only the tap needs the 9000 mtu
no need to mess with the bridge interfaces
[22:38]
brycecDo I see an option in the portal to configure the mtu in the future? :D (or just set everyone to 9000... or just do it by hand/on request) [22:39]
up_the_ironsi think it's simpler to just try 9000 everywhere
if it's stable, then it's all good
[22:39]
brycecmight cause confusion with fresh installs that attempt 1500 by default
(don't get me wrong, i'd love 9000 everywhere)
[22:40]
up_the_ironswell, if the tap is 9000 on the host, but only 1500 on the VM side, that shouldn't mess with anything
the mtu is 9216 on all my "backplace" traffic ports, but the front-end NICs are still 1500 (cuz i'm lazy and get enough speed anyway)
brycec: can u test one more time? (sorry, didn't think we'd get into all this mtu stuff now :)
[22:41]
brycecup_the_irons: still good
backup->vps(ramdisk) 46.6MB/s, vps(ramdisk)->backup 38.9MB/s (again)
[22:47]
up_the_ironsbrycec: ok nice
seems like the vlan on the backup server doesn't need the 9000 mtu either. like, only "physical" interfaces
gonna reboot the backup server to make sure the mtu sticks
[22:47]
brycecnoooo
brycec points to his active xfer
brycec watches things fail
[22:48]
up_the_ironswoops [22:49]
brycecsshfs does NOT like yuo right now, up_the_irons [22:49]
up_the_ironsup_the_irons apologizes to sshfs [22:49]
brycecin my testing and "real" use: (rx/tx) max 391.09 Mbit/s | 339.03 Mbit/s
looks like we're back up
[22:50]
up_the_ironsmtu stuck, yay [22:51]
brycecgreat [22:51]
up_the_ironsbtw, i added the backup space to your Portal profile, officially
you'll see more options now
[22:51]
brycecoptions where? [22:51]
up_the_ironsin portal [22:51]
brycecoh cool! [22:51]
up_the_ironsclick "Backup Space" [22:52]
brycecbrycec did [22:52]
up_the_ironsi'll spoil the surprise: just let's you submit new ssh keys [22:52]
brycecI love that df tells me I can write out another 2.7TB... in a 20GB quota :p
*2.5
**2.6
up_the_irons: that's not all - also mentions the hostname
[22:52]
up_the_ironsbrycec: is this over sshfs? [22:53]
bryceceven though the hostname doesn't match the ipv4 address you gave out
up_the_irons: Yes
[22:53]
up_the_ironscuz 'df' is not a binary within the chroot, so you can't see it while logged in [22:54]
bryceclol sorry for the confusion
yes, df against the sshfs mountpoint
[22:54]
up_the_ironsbrycec: interesting. dunno if there's anything i can do about that [22:54]
brycecprobably not
unless you can fuck with sftp on the server
[22:54]
up_the_ironsyeah true [22:54]
brycecup_the_irons: Could I ask for a bump in my quota?
brycec replied to the ticket instead/too
[23:02]
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toddf_interesting, the openbsd implementation of virtio networking can only do a mtu of 2024 not 9000 [23:46]
up_the_ironstoddf_: whoa weird [23:53]

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