/srv/irclogs.ubuntu.com/2015/03/25/#ubuntu-uk.txt

=== Lcawte is now known as Lcawte|Away
diddledanwhat's the command to monitor network connections?01:14
daftykinsfor what kinda thing?01:15
daftykinslike netstat?01:15
diddledanto monitor the conections as they come and go01:30
daftykinshrmm i must not know01:31
intrbizdiplo: iftop ?02:14
jussigood morning all02:18
nigelbmorning jussi02:20
jussihow are you nigelb?02:20
nigelbjussi: still waking up :)02:21
nigelbbut yay wednesday.02:21
mappsraining here02:44
mappsbooo02:44
mappswhat a depressing burger i had02:46
mappswish there was more choice for food late at night02:46
jussimapps: its called a kitchen.... :P03:05
mappsyea03:06
mappsbut then washing up03:06
mappsugh03:06
mappsand i cant cook well..i make fairly basic stuff03:06
mappsreminds me i should go out for a roast dinner sometime03:06
mapps#havent had one for years03:06
=== zmoylan-1i is now known as zmoylan-pi
=== MooDoo is now known as Guest38173
=== zmoylan-1i is now known as zmoylan-pi
diddledanyawning06:24
* zmoylan-pi is scratching06:25
elfymorning07:53
knightwisemorning peeps08:10
knightwisehey everyone08:51
knightwisetaking elementary linux (the new beta) out for a spin08:54
knightwisedoenst look that bad at first sight08:54
davmor2Morning all09:16
foobarryknightwise: i use it every day all day09:17
knightwisehey davmor209:17
knightwisefoobarry: its pretty good , i put the 12.04 based version on my wifes iMac09:17
knightwiseshe loved it09:17
foobarrynice and fast, good workflow with synapse installed09:17
knightwisedidn"t notice it wasnt osx09:17
foobarrydo osx still do that nasty global menu thing09:18
knightwiseyep ,09:18
foobarryits an abomination09:18
knightwiseOSX is starting to become more frustrating to work with as a power user09:18
knightwisealthough I must say , the more I become an expert in the cross platform computing thing the less I notice what OS i'm actually one.09:19
knightwiseon.09:19
foobarryunless its unity09:19
foobarrythen you definitely notice09:19
knightwiseCurrently running Freya as a VM on top of OSX in fullscreen mode, SSH'd into my Pi for irssi and using Google inbox for mail and chay09:19
directhexi can't use osx as a "power user"09:19
knightwiseto my the actual OS is becoming more and more trivial09:19
directhexwe hatses it09:19
bashrc_I didn't think OSX was designed for power users, but then I've never used it myself09:20
* zmoylan-pi installs os/2 on knightwise's system just to see the expression on their face... :-)09:20
knightwisezmoylan-pi: if it has SSH and a browser i'm set09:20
knightwisebashrc_: when I do videoproductions and stuff I rely heavily on OSX, there is no way to do stuff like that in Linux or windows09:21
knightwisebut for all the rest ?09:21
knightwiseOS irrelevant09:22
knightwiseI guess I like to go with what is light and looks pretty09:22
knightwisehence elementary, Ubuntu Mate and Chromixium as my current VM's of choice09:22
* zmoylan-pi installs win vista on knightwise's system...09:22
knightwisezmoylan-pi: I don't mind windows at all , I just wish they had a decent terminal client09:23
knightwiseVista is slow .. not my preferred choice , but 10 is pretty nice !09:23
directhexi prefer windows to osx09:25
foobarryi prefer not having to choose :D09:25
* zmoylan-pi hands out pitchforks and torches to mob... one each please09:25
directhexmy work laptop is a macbook. boots ubuntu primarily09:26
knightwiseI love apple hardware (and the fact you can sell it second hand for a good price)09:26
zmoylan-pitheir laptops do last an average students time at college...09:27
knightwisedirecthex: I have the 15 inch macbook pro. Damn good machine. Expensive but it is the main investment for my company so ...09:27
zmoylan-pii'm not sure if it's better build or treated better by student as it's a prestige item thing though...09:27
directhex13" - i don't need to carry a surfboard around with me09:28
zmoylan-piyou use public transport directhex?09:28
popeyhttp://paste.ubuntu.com/10676264/ this is a dead disk isn't it?09:28
knightwisedirecthex: i also wanted to go with the 13 inch , but the 15 inch has a quad-core I7 , so I need that for final cut pro09:29
directhexzmoylan-pi: when i travel internationally09:29
directhexmodel name: Intel(R) Core(TM) i7-4558U CPU @ 2.80GHz09:29
directhexpopey: try swapping the sata cable first, but it might be09:29
knightwisedirecthex: thats a dual core I709:29
directhexoh, true09:30
directhexhyparthreads!09:30
knightwiseif you do final cut pro edits .. DA PowAh is Required09:30
knightwisehttp://www.phc.nl/kennis/phc-tv/ (2 productions I did for a client) ..09:31
knightwiseits in dutch so you won't understand shit09:31
popeyusb cable...09:31
popeyits a sata enclosure09:31
popeytried two enclosures09:31
directhexpopey: well, it might be the usb-sata chip in the enclosure, not the disk itself09:32
directhexoh09:32
directhexbumpoo09:32
popeyyeah09:32
brobostigonmorning boys and girls.09:45
zmoylan-pimorning mammals09:45
knightwisebrobostigon: there IS intelligent life on this planet after all09:47
* zmoylan-pi hums the galaxy song in retort to that09:47
brobostigonknightwise: oh yes, :)09:48
knightwisei had my doubts there for a moment .. with zmoylan-pi trying to install Vista on my computer and all09:50
zmoylan-piwell someone has to be punished so that we'll remember how bad it is :-)09:51
knightwisezmoylan-pi: i agree09:51
knightwisebut i'm not going to be a marter :p09:51
foobarrymartyr?09:51
JamesTaitGood morning all; happy Tolkien Reading Day! :-D10:02
zmoylan-pishouldn't it be tolkein reading week as all books are huge?10:03
foobarry"All 650 MPs will be given an iPad Air 2 and a laptop in the wake of the general election in May."10:03
foobarryhttp://www.telegraph.co.uk/technology/apple/11493656/All-650-MPs-to-receive-iPad-Air-2-and-laptop-post-election.html10:03
knightwisetalk about self-service10:04
zmoylan-pisince they always make deals with ms shouldn't they be punished with windows 8 laptops and winphone tablets? :-)10:04
zmoylan-piwindows rt tablets would be ideal for them...10:11
knightwisezmoylan-pi: that is just pure evil10:12
zmoylan-piwell they are government...10:12
knightwisewho was using elementary again on a daily basis ?10:12
knightwisedo you notice Chrome likes to freeze up ?10:12
foobarryhello10:13
TwistedLucidityknightwise: it was foobary10:13
* foobarry waves10:13
* zmoylan-pi surfs10:13
foobarryi have no issues10:13
foobarrycheck adblock is updated10:13
foobarryand dns is ok10:13
foobarryand RAM is free10:13
TwistedLucidityDoens't adblock increase the load?10:14
foobarryno,10:14
foobarrytry visiting the independent web page without adblock and we'll talk10:14
TwistedLuciditySeem to recall reports that it increased RAM/CPU usage10:14
knightwiseok might be addblock10:14
davmor2JamesTait: /me plays the hobbit and LOTR cds to celebrate10:17
foobarryhmm this seems bad timing lidl10:18
TwistedLucidityfoobarry: This is what I was thinking of10:18
TwistedLucidityhttps://blog.mozilla.org/nnethercote/2014/05/14/adblock-pluss-effect-on-firefoxs-memory-usage/10:18
foobarryhttp://www.lidl.co.uk/en/our-offers-2491.htm?action=showDetail&id=2188610:18
foobarryTwistedLucidity: yes some affect, but ads on a lot of sites murder your browser10:18
TwistedLucidityThey murder my eyes, never mind the browser!10:18
knightwisenope its not addblock10:18
foobarryTwistedLucidity: http://www.independent.co.uk/life-style/health-and-families/health-news/a-45minute-power-nap-can-boost-your-memory-fivefold-study-finds-10128456.html10:19
TwistedLucidityWhen sites have muted/non-flashing adverts that are based solely on the site/page content (i.e. no privacy invasion)...then they'll be let through10:19
foobarrysmooth scrolling be gone!10:20
davmor2foobarry, popey: So if your hudl2 start losing time press vol up + vol down + power till it shuts of and then power it back on, apparently there is a bug where it loses 17minutes an hour but only on certain models, the volume thing just resets the android cache so it fetched the right time again :)10:20
TwistedLucidityfoobarry: And yet USAians will wake up in the middle of the night to answer emails from their mobile so they can be seen as hardworking.10:20
foobarrymy comment was more about the ads...10:21
foobarrysmall strip of text10:21
foobarryand wall of animated ads10:21
TwistedLucidityI see no adverts10:21
TwistedLucidityNetwork blocks FTW!10:21
foobarryi have a post lunch nap at weekends10:21
foobarryits glorious10:21
TwistedLucidityOK, I now see *one* dating advert and some ijobs thing. Also spotted a few other ad-related URLs coming down.10:24
* TwistedLucidity makes note to update blocks10:24
foobarryknightwise: also ensure that chrome has exited10:25
knightwisechecking. might be that too10:25
foobarryi change the setting that aloows it to run in background10:25
foobarryi hate that they do that10:25
knightwisebeen playing with the new google inbox10:26
knightwisemust say : I don't dislike it at all10:26
popeyhuh, interesting davmor2, I've not seen that here. Maybe when I dropped mine, I fixed it :)10:26
TwistedLucidity"*amazon-adsystem.com" should kill most of them10:26
TwistedLuciditypopey: What kind of battery life do you get on it?10:26
popeydunno, mostly plugged in on my desk10:27
popeylongest I had was transatlantic flight10:27
popeymaybe 9 hours10:27
popeyplaying video constantly10:27
TwistedLucidityThat's not too shabby. Is it hackable?10:27
foobarryits not even openable without a razor10:28
TwistedLucidityAh...so installing a different OS is going to be...fraught10:28
davmor2popey: it is only on certain models so you might of got a batch before it happened10:28
TwistedLucidityWhatever happened to colour e-ink I wonder?10:29
popeysadly x86 based tablets are not very hackable10:29
knightwiseI played with that phone that has an epaper display on the back and a regular screen on the front10:29
popeyironically the Microsoft Surface is more hackable than Android tablets / phones10:29
knightwisethe Yotaphone10:29
knightwiseThe surface is a dream if you run ubuntu on it10:30
zmoylan-pia knightmare if you don't :-)10:30
foobarryweird and unpredictable? thats what my dreams are like10:30
knightwiseits my favorite knightmare ?10:31
knightwiseknight-mare :p10:31
knightwisefoobarry: you dream of thong-sporting furries10:31
foobarrylast night i dreamt i was on a night out in islington and bumped into my mate who had brought a whole delicatessen counter with him, featuring various cuts of meat10:32
* zmoylan-pi sticks fingers in ears and starts chanting la-la-la-la10:33
popeyi had a dream last night where I was busting for the toilet10:33
popeyI woke up10:34
popeyand I was busting for the toilet10:34
popeyThat is about the extent of my dreams.10:34
knightwisepopey: its called lucid dreaming to the extreme10:34
popeyThey don't need much in the way of interpretation.10:34
knightwisedump /dev/null10:35
foobarrylol10:35
davmor2I never remember my dreams10:35
popeyevery so often I am reminded of http://www.omgubuntu.co.uk/2012/10/ubuntu-installer-for-nexus-7-tablet-made-available-for-devs#comment-693710478 which always makes me smile10:35
davmor2I probably dream of ways of breaking JamesTait 's spirit or ubuntu or something :D10:36
popeywait, he has spirit!?10:36
popeymug him!10:36
zmoylan-pitoday is NOT JamesTait's day! \o/ :-P10:36
davmor2popey: he did have I broke it in my dreams10:36
davmor2popey: also it was spirit not spirits, no point mugging him till he has at least one bottle of Whiskey10:37
JamesTaitpopey, it's the only thing that gets me through the day. ;)10:37
davmor2JamesTait: is beuno aware of your drinking issue?10:41
JamesTaitdavmor2, I don't have an issue with drinking. I can drink perfectly well!10:42
zmoylan-piafter that it's all a blur...10:42
davmor2JamesTait: Hic10:43
* davmor2 can picture JamesTait getting away with HHHonest hoccifer I only had one drinnk10:44
zmoylan-pihave you seen my keg?10:45
=== Lcawte|Away is now known as Lcawte
foobarryhow does one change the passphrase for whole encrypted disk?11:40
foobarryso much misinfo on various wikis and stacks11:40
popeydidnt know you could do that without a re-install11:44
foobarryoh :-|11:44
awilkinsNaah, sure you can11:46
awilkins* dpending on disk encryption11:46
zmoylan-pijust make sure you have a few good backups before testing... :-)11:47
foobarryfull disk enc11:47
awilkinsDoesn't it have like 15 slots for keys so changing the passphrase just copies the key to another slot encrypted with that phrase?11:47
awilkinsChanging the KEY, that's another matter11:47
directhexyeah, that's itr11:48
directhexyou can change the password. let me find the syntax11:48
popeynice11:49
popeyworth knowing.11:49
directhexoh, apparently it's in the GUI on 14.04+11:49
directhexrun Disks, click cog -> change passphrase11:49
popeyso it is!11:49
popeyguess you need a live cd/usb to do that11:49
directhexnot IME11:50
directhexiirc11:50
popeyhmm, it's greyed out here11:50
popeyi thought because it's mounted11:50
directhexhuh, maybe it is then11:50
directhex¯\_(ツ)_/¯11:50
popeyIKR11:51
foobarrylolz11:51
foobarrythanks, that gives me something to work on11:52
directhexit's cryptsetup LuksChangeKey under the hood11:53
directhexchange key in one slot, delete key in old slot11:54
directhexprobably works11:54
zmoylan-pi...probably...11:54
ujjainis ocado cheap because its online-onlhy?12:40
davmor2ujjain: NO ocado is just Waitrose delivery aiui so it won't be cheap12:44
=== Lcawte is now known as Lcawte|Away
DJonesIf anybody is looking at getting an ubuntu phone https://twitter.com/ubuntu/status/580718582662823936/photo/1 Another flash sale tomorrow13:37
ujjain davmor2, ah, that explains, seemed expensive13:43
popeyocado > *13:44
foobarryi recall a story where a well educated nigerian guy moves to UK, and asks a friend what a good newspaper to read is13:49
foobarryfriend says "the sun". so this gentleman reads the semi literate boob filled rag so considerable time thinking this is quality english newspaper13:49
foobarrydidn't really check for himself13:50
zmoylan-pii thought builders read it as it had 1) sports results 2) cheap 3) very absorbent in portaloos13:50
foobarry4) boobs13:50
foobarrybbc news app fulfils 1,213:51
zmoylan-pii don't think that was considered a factor, mind i think they got rid of page 3 in ireland a fair few years back13:51
foobarryi've heard many people quote point 4) as their primary reason13:51
foobarrydidn't they ditch it here too recently, or were they trolling?13:51
zmoylan-pii've heard 1,2 + 3 as primary reasons from builders13:52
zmoylan-pithey trolled the uk by not having it for a few days13:52
foobarrymust have been those days the builders never turned up at my house13:54
Myrttiso that's the tale of Jeremy Clarkson then.14:09
zmoylan-pisome other station will snap him up14:13
zmoylan-pi1 million people signed a petition to take him back _after_ he assaulted the producer.14:13
ali1234thus proving why democracy doesn't work14:14
zmoylan-pidemoracy is the worst of all systems, till you look at all the other systems...14:14
foobarrywhat heppened? cameron announcned clarkson to succeed him as PM?14:16
ali1234no, the system where we pretend to have democracy but actually both choices are the same is far better14:16
foobarryclarkson should get into politics14:16
Myrttiwhy? tories have plenty of politicians that think exactly like Clarkson already14:17
foobarryif chris evans gets to be presenter i'm ripping up my printed email of my tv licence14:17
Myrttiwe got a UKIP candidates letter in our mailbox the other day. I was surprised when the hubby went directly to the garden to burn it.14:18
zmoylan-piyou should switch to proportional representation, then you'll know what chaos is in a democracy :-)14:18
awilkinsFirst Past The Post is not democratic enough14:28
zmoylan-pi2 men enter, 1 man leave would make great reality tv... :-P14:28
foobarryis tina turner still going?14:28
awilkinsSaw a TED talk which proposed the notion of a political party who actually had in it's manifesto that it would only do stuff that had a democratic mandate14:29
foobarryNovember 26, 1939 (age 75)14:29
Myrttimove all the elections using the same model as the MEP elections14:29
awilkinsMeasured by online polling of policies...14:29
awilkinsElectronic voting is something I oppose, but I also acknowledge that something like it would be the only practical way of having proper democracy14:30
zmoylan-pipunch card voting forms would do the trick for quicker voting.  we can have working punch cards unlike florida14:30
awilkinsI oppose electronic voting because it's a system that's way too open to abuse but closed to inspection - only a small fraction of 1% of the population could actually audit a computerised election14:30
directhexi approve of electronic voting, and disagree with computerized or online voting14:31
directhexindia's machines work great14:31
MyrttiI have absolute no faith electronic voting what so ever.14:31
awilkinsNaah, pencil/paper14:31
Myrttiall the implementations I've seen have been major clusterfailures14:31
awilkinsi) Someone of average intelligence understands it well enough to spot fraud14:31
awilkinsii) Counting paper votes scales well - just add more people.14:32
directhexindia's implementation has a great security record compared to the US's14:32
foobarrythe problem with party politics is evidenced in this chan14:32
foobarry1 person = 1 different opinion14:32
awilkinsiii) As a bonus, adding more people makes it more fraud-resistant14:32
foobarryawilkins: see bethnal green for large scale voting fraud14:32
zmoylan-piireland spent about €50m on electronic voting before it was abandoned.14:32
foobarrysurely its the way of things eventually?14:35
awilkinsfoobarry, Yeah - they detected it though, didn't they14:35
zmoylan-pinope. the process has to be visible to many and be seen to be tamper resistant.  current methods work ok-ish. electronic versions do not14:36
foobarryawilkins: not really14:36
foobarrythere were more votes cast than residents14:37
awilkinsfoobarry, the fact that you're telling me about the fraud, means it was detected...14:37
foobarrythis is related but a different story14:37
foobarryhttp://www.telegraph.co.uk/news/uknews/crime/11382160/Judge-to-see-forensics-that-point-to-Tower-Hamlets-vote-fraud.html14:37
foobarry"Yesterday the Mail visited one four-bedroom flat in the area where 18 men are apparently claiming a vote, all of whom registered within the past month.14:38
foobarryThe students living there were baffled by many of the names said to be residing with them. Another resident was surprised to learn that eight complete strangers were also registered as living in the small flat she shares with her partne"14:38
awilkinsThe more complex you make an electronic voting system, the fewer people can successfully audit it14:39
foobarrythey don't have man power or desire to check14:39
awilkinsYes, that's electoral roll fraud though14:39
awilkinsIt is a) already managed electronically b) easy to check14:40
awilkinsElectronic management of electoral rolls, yes14:40
awilkinsElectronic vote counting, no14:40
Myrttiso many issues that would possibly be solved to have an automatic electronic electoral roll.14:40
Myrttiwell, national registry in general14:41
awilkinsThe fact that they are not checking it properly is just incompetence, especially since an electronic electoral roll is cheaper to check than a paper on14:41
awilkinsChecking an electronic vote tabulation system OTOH is harder than keeping a distributed set of mark I eyeballs on a paper one14:41
awilkinsYes, because it's central and electronic, it ought to be cheaper14:42
awilkinsBut that also is a weakness, because it makes it cheaper to nobble your auditors14:42
awilkinsWhen only a small priesthood of technocrats can audit your system, it's much cheaper to buy them off/spoof them/deliberately find incompetent ones14:43
awilkinsYou can have all the effects of widespread voting fraud with much less cost and effort14:43
ali1234the problem is that very few people will actually audit anything regardless of how easy it is14:50
bigcalmGood morning peeps :)15:04
intrbizbigcalm: morning15:04
dutchielo bigcalm15:04
bigcalmFrom bq: "We are writing to inform you that you have received or are about to receive your order via the UPS courrier service." Trust it to be delivered when nobody is at home. I hope my neighbours are in a good mood today15:04
zmoylan-pisome form of pit under the welcome mat to slow them down...15:07
directhexhm15:07
directhexif you were going to go to a website which told you about different steamos community projects and forks, without any valve trademarks in the url, what would you say was a good choice of url?15:08
bigcalmNo15:08
foobarrydirecthex: what are the trademarks? valve, steam , steamos, and all their games?15:10
Myrtticommunityfog15:10
directhexfoobarry: yes15:10
Myrttialthough fog can be corrupted into nasties15:10
bigcalm134 packages can be updated.15:10
bigcalm88 updates are security updates.15:10
foobarryh2osmium15:10
bigcalmI forgot about my parent's server :(15:10
foobarrybit contrived :P15:11
foobarrydirecthex: maybe find a type of valve that functions as a fork/splitter15:13
popeybigcalm: sounds like you need landscape :)15:14
directhexhm. fumecupboard.org is free.15:14
* popey logs into landscape now and then and presses the "update them all" button15:14
bigcalmpopey: haven't considered it to be worth the expense15:14
popeyits free15:14
popeyfor up to 10 machines15:14
popeyplus 10 vms15:15
popeyiirc15:15
bigcalmOh15:15
bigcalmI thought it cost15:15
popeyit does15:15
foobarrydirecthex: pressurecooker15:15
directhexfoobarry: taken :(15:15
popeypssrckr15:15
awilkinsLandscape is free for 10 hard machines + 10 VMs?15:15
awilkinsOr is that just "10 machines, whether they're virtual or not" ?15:16
popeyhttp://askubuntu.com/questions/549809/how-do-i-install-landscape-for-personal-use15:16
popey" It is free for up to 10 physical machines and 10 more virtual machines for a total of 20:"15:16
awilkinsGroovy15:18
diploMight have to have a play with that myself, got a few VM's with it :)15:18
* bigcalm emails himself for later tinkering15:18
bigcalmpopey: thanks15:18
awilkinsDo you have to have a dedicated server?15:18
awilkinsCan it be a VM running on one of the machines it's managing :-) ?15:18
foobarry100degreeswater15:19
foobarry.com15:19
popeythese days I'd be inclined to use a random sequence of letters which is pronouncable15:20
foobarrydidn't twitter used to be called twitr15:20
diddledanfltr15:21
foobarrythose names will date badly15:21
Myrttifoggr15:21
popeyagrajag.com :)15:21
foobarrylol is that availabl.e?15:21
zmoylan-piprogrammers who watched too much jeopardy15:22
popeyno :(15:22
popeysomeone in High Wycombe15:22
popey   Expiration Date: 07-dec-202215:22
popeyjeez15:22
diddledanzmoylan-pi: what demographic is most wellknown for inventing random questions?15:22
popeyor use some old norse god or something like icculus did15:23
zmoylan-pioooooh i know this.... which group always ask, but does it run linux?15:23
foobarryfjords.org.uk15:24
diddledanhttps://www.youtube.com/watch?v=BeLZCy-_m3s15:24
intrbizfluttr - social gambling ?15:25
foobarrymuttr dog walking and chatting network15:29
foobarrymattr - social chemistry.15:29
directhexok. trying to avoid valve's trademarks is tough15:32
diddledanhattr - a mad person15:33
directhexbut here's my current idea: ductworks. it sorta evokes the idea of a factory, sorta about moving hot air from A to B so not entirely divorced from "steam"15:33
popeyhttp://www.amazon.co.uk/gp/product/B00KAKUN3E fire TV stick is £19 for prime members15:33
directhexthoughts?15:33
TwistedLucidity"Suggested by Amazon from your recent TV viewing...."15:34
daftykinshmm, XFS gets 30MB/sec and EXT4 gets 45MB/sec with a test rsync15:34
diddledandaftykins: boiler15:34
diddledanerm15:34
diddledandirecthex: ^^15:34
directhexdiddledan: there aren't many "boiler" domains that aren't taken15:34
diddledanergh15:34
directhexi want a .org for this, really15:34
intrbizdaftykins: read or write?15:34
diddledanboilerpipe15:35
intrbizdaftykins: what kernel?15:35
directhexe.g. boilerroom and boilerhouse were both taken15:35
daftykinsintrbiz: write, with write-cache disabled15:35
diddledanpipedream15:35
daftykinsintrbiz: 3.13.0-4615:35
diddledan:-p15:35
Myrttisauna15:35
popeydiddledan: how about Stavromula.com then you can brand it "Stavromula Beta"15:35
intrbizdaftykins: barriers turned on on ext4?15:35
daftykinsintrbiz: whatever defaults are *shrug*15:35
popeys/ diddledan / directhex15:35
TwistedLuciditySteam OS...no valve trade marks...hmmm15:35
diddledanpipedream's prolly so old it's 1) abandonware, and 2) unknown to many15:36
intrbizdaftykins: what disk array?15:36
daftykinsintrbiz: all i did for the EXT4 test was "sudo mkfs.ext4 /dev/sdc1" :>15:36
daftykinsintrbiz: 8 x 4TB WD Red in RAID6 with 64KB stripe on a 3ware board15:36
intrbizdaftykins: barriers are a mount time option, I forget if EXT4 is on or off15:36
intrbizdaftykins: have you run bonnie++ ?15:36
daftykinsi am unfamiliar with bonnie 0o15:36
intrbizdaftykins: excellent tool for testing disk perf15:37
intrbizdaftykins: how much RAM ?15:37
daftykins2GB15:37
directhexdaftykins: are you working on large or small files?15:37
daftykinsdedi file server15:37
daftykinsdirecthex: large predominantly, media storage for this chap15:37
intrbizdaftykins: bonnie++ -f -r 204815:38
daftykinsXFS seems a little bit quirky to understand but i eventually settled on "sudo mkfs.xfs -d su=64k,sw=6 -f /dev/sdc" for making up the XFS volume :>15:38
daftykinsthat's 6 data disks and 64KB stripe15:38
intrbizyeh15:38
diddledanwe've just had an interesting discussion over how we're looking to find a young-looking 9yearold15:38
TwistedLuciditydirecthex: Considered non-English words? I bought a real-word domain last year in German. Very handy.15:39
diddledanbecause you can do more with a 9yo than you can a 6yo15:39
intrbizI use XFS on all my systems15:39
daftykinsdiddledan: err...15:39
foobarryxfs is horrid on disk full15:39
diddledandaftykins: indeed15:39
intrbizdaftykins: you can also increase the AG count if you've got a parrellel workload15:39
directhexXFS is red hat approved!15:39
foobarrykernel panic, xfs_repair involved , messy15:39
foobarryhad that situation many times, and even last week on a file server15:39
TwistedLucidityAlthoigh dampf.org probably isn't that great.....15:40
intrbizfoobarry: never had to XFS repair when I've filled the disk before15:40
daftykinsintrbiz: do i need to sit in the path of that volume when running bonnie++ for it to use that?15:40
daftykinsor is it going to do them all :D15:41
foobarryintrbiz: happpens frequently on various servers, also goes titty when a disk dies15:41
intrbizdaftykins: yes, it will create a temp file in working directory15:41
foobarryon the raid array15:41
intrbizdaftykins: watch iostat -mx 5 in another console too15:41
daftykinsroger that, bonnie is running now, shall connect in again15:42
daftykins100% util hah-har15:44
intrbizdaftykins: you can increase the -r param to write a bigger work load, it writes a file twice that size, IE, write twice the amount of RAM15:44
intrbizdaftykins: 100% util at what though put?15:45
daftykinscan't say i'm too familiar with these units15:45
intrbizdaftykins: wMB/s column15:45
daftykinshttp://paste.ubuntu.com/10678728/15:45
daftykinsoh hello that value was up at 375MB/sec a moment ago15:46
daftykinsah no i was reading read15:46
intrbizdaftykins: 83% IOWait at 20MB/s rewrite is not a good sign15:46
daftykinsi do have write cache disabled on the controller right now, as mentioned15:47
daftykinslets have another go15:47
foobarryiozone draws a pretty 3d graph for you15:47
daftykins45-48MB/sec write now15:48
daftykins84% IO wait15:48
daftykinsi'm not sure whether i'd rather stay on EXT4 or go back to XFS15:49
intrbizdaftykins: has bonnie++ finished? can you paste the output15:50
daftykinsyeah the first run had done15:50
daftykinshorrible formatting :D http://paste.ubuntu.com/10678763/15:51
intrbizdaftykins: something fundametally wrong with that diska array, only hitting 46.183 MB/s15:53
daftykinslet me run it again with write cache on15:53
intrbizdaftykins: does your controller have a battery backed cache?15:54
daftykinsnope, that's why i've been messing around with write cache off15:54
intrbizright15:54
daftykinswrites is up to 145MB/sec with write cache on, iowait % down to 2515:54
daftykinsthe whole machine is UPS'd though so i'm not sure i should worry much15:55
daftykinswow that run completed so much quicker with write cache on :D15:55
intrbizdaftykins: have you tried presenting each disk as JBOD and using software RAID ?15:55
daftykinsi don't want to15:55
intrbizdaftykins: I'd be very weary of using write cache without a BBU15:55
intrbizdaftykins: even for testing?15:56
daftykinshttp://paste.ubuntu.com/10678810/15:56
daftykinswell what would you be expecting to see different here?15:56
daftykinshmm i do also have the 3ware's whole 'security' vs. 'balance' vs. 'performance' profiles too15:57
daftykinsright now it's on balance15:57
intrbiznever used 3ware controllers15:59
daftykinsdoes the above paste show much of what you're expecting?15:59
daftykinsperformance mode ran even quicker now, naturally15:59
intrbizdaftykins: how big is the controller cache?15:59
daftykins256MB on card i think15:59
intrbizrun bonnie with -r 4096 ?16:00
daftykinssame comparison as my last paste or with this 'performance' mode on too?16:00
intrbizsure16:00
daftykinsit's more about capacity this storage though, so performance isn't really the matter16:01
daftykinsi was more picking a file system still :D16:02
daftykinshttp://paste.ubuntu.com/10678845/16:03
daftykinsthere we go16:03
daftykinsoops i typed 2048 for the last one when i meant 409616:03
intrbizit says the file size in the output anyway16:04
daftykins*nod*16:04
daftykinsso, still look iffy in someway?16:04
intrbizperformance is more expected with the cache on16:04
intrbizwith the cache off, it looks really bad, I suspect the parity computing is the bottle neck with the cache off16:05
daftykinsmmm, even with it on you see the write rates dancing all around16:05
intrbizat ~ 500MB/s you need to run a much larger / longer test to get reliable results16:06
intrbizyou'll often see the write rate drop when the controller flushes teh cache etc too16:06
daftykinsseems weird to me i only see 85-90MB/sec rsyncing from another RAID6 on the same controller to that one?16:06
intrbizrsyncing over network?16:07
daftykinslocal HBA16:07
daftykins16 disks on the same controller16:07
daftykins2 x 8 disk RAID6s16:07
intrbizdaftykins: with or without the writec cache?16:08
daftykinswith16:08
intrbizwhat do you see in iostat when you rsync?16:09
daftykinshttp://paste.ubuntu.com/10678896/16:10
daftykins21,038,380,819 100%   85.17MB/s    0:03:55 - test file16:10
daftykinsmaybe that's just the best you can get from a RAID6 writes even with 8 disks?16:11
intrbizdaftykins: RAID 5/6 are slower for writes than RAID 10 would be, it's a trade off of speed vs space16:12
daftykinsyip16:12
intrbizbut I would have expected to see 160MB/s - 320MB/s for the number of spindles you have16:13
intrbizis plain old cp any quicker than rsync ?16:13
daftykinsis there a way to wrap it up for stats?16:13
daftykinstime cp file dest, i suppose16:14
intrbizjust use iostat to watch the IO throughput16:15
daftykinswow yeah it's destroying rsync16:15
daftykins170MB/sec16:15
daftykinsit seems to be limited by the read rate from the other RAID16:16
intrbizdaftykins: any reason for the two arrays rather than one big array?16:16
daftykinsreal    1m55.593s - so practically half the time of the other, so yeah 170MB/sec16:16
daftykinsintrbiz: yep, migrating the old to this new one at the moment as the olds disks are out of warranty now16:17
daftykinsbeen spinning for 5+ years solid16:17
intrbizah ok16:17
daftykinsall this fiddling is me getting comfy before committing :)16:17
daftykinsintrbiz: do you have a preferred file system for these setups?16:19
TwistedLucidityMystery solved. ufw is block KDE Connect....curses!16:21
intrbizdaftykins: I prefer XFS, especially for high performance work loads like databses16:21
daftykinsah right16:21
daftykinsi definitely had no issues with it last time16:21
intrbizdaftykins: XFS also has quicker log recovery, less need for fsck16:22
daftykinsmaybe i'll go back to it then :)16:22
intrbizdaftykins: more parellel with via multiple allocation groups, better FSTrim handling16:22
daftykins"sudo mkfs.xfs -d su=64k,sw=6 -f /dev/sdc1" definitely sounded good? it's funny how obscure some XFS docs are16:22
intrbizdaftykins: and since 3.2 has better perf / IOPs profile at high thoughput16:22
daftykinsinitially i thought sw=8 for 8 disks, but then learnt it wants you to factor in data only disks16:23
daftykinskernel 3.2 onwards?16:23
intrbizyes16:23
daftykinsah-har16:23
daftykinsyeah this was just recently reinstalled from 10.04.4 server, so finally up to date16:23
daftykinshad to move to a 64-bit host OS to handle mounting 24TB as well :D16:24
intrbizdaftykins: you could try without specifying strip width, it should get auto-detected if the block layer passes up16:24
daftykinsyeah not sure if the 3ware presents the info, the xfs_info command just showed blank values16:24
intrbizdaftykins: also, I'd increase the ag count16:24
daftykinsi'll have to look into how to do that then16:24
intrbizdaftykins: mkfs.xfs -d agcount=3216:26
daftykinsseems 22 was default16:27
intrbizdaftykins: max size for an AG is 1TB16:28
daftykinsXFS is hitting 200MB/sec write now16:28
daftykinswith a standard cp, write cache on16:29
intrbizdaftykins: cool16:29
intrbizdaftykins: is that faster than EXT4 ?16:29
daftykinsdefinitely16:29
daftykinsi think being able to factor in the real physical attributes with XFS gives it an advantage16:29
daftykinsintrbiz: thanks very much for your input :)16:30
intrbizdaftykins: your su and sw settings look right, but I've always found it can be worth benchmarking with and without (assuming you have the time and interest)16:30
daftykinsyep i did both and had no difference with rsync at least, but now we know that was a bottleneck of some kind16:30
intrbizdaftykins: no worries, to much time spent debugging disk arrays in the past16:31
daftykins:D16:31
daftykinshttp://paste.ubuntu.com/10679070/16:31
daftykinsthat's what i did earlier this afternoon16:31
intrbizdaftykins: I'd look at getting a BBU, the money vs the risk etc (even with a UPS)16:32
daftykinsyeah, i'll price it up - might be hard to get hold of now16:32
daftykinsah no £8.60 on ebay :D16:32
intrbizdaftykins: is it an older controller?16:33
daftykinsyeah, 3ware 9650SE 16 port16:33
daftykinsproper legacy status now, both with LSI and whoever bought LSI now16:33
intrbizI've used the Areca controllers in the past, very nice cards16:34
intrbizLSI MegaRAID are usually pretty good16:35
daftykinsi very nearly tried one back in Uni time, but decided to stick with what i knew16:35
daftykinsin fact glancing at ebay i'm shocked how cheap they can be found16:35
intrbizI pciked up some Dells controllers for around £30 the othter year16:36
intrbizflashed with the LSI firmware they are good for the price16:36
daftykins:O16:36
intrbizinterestingly for RAID 10 the LSI firmware was about 4 times faster than the Dell firmware16:36
daftykinshaha, that's a neat discovery16:37
daftykinsi'm amazed it even goes on!16:37
intrbizI think you just ignore the warming and it works *most* of the time16:37
intrbizthe best I saw, was one customer's (very expensive) SAN was only hit 15MB/s under bonnie++16:39
daftykinsooh-err16:39
daftykinswhat had they done wrong?16:39
intrbizI think after alot of internal politics, their ops guys confessed to putting it on a low perf / oversubscribed LUN16:42
daftykinserk :S16:43
daftykinsoh wow i'm fiddling around and just caught a sector repair on the old array16:44
daftykinswow it's one of the good disks 0o16:45
daftykinsok now one of the new disks reads 'device error' :) seems like it's going to be one of those days16:53
intrbizvia smart? or via the array block device?16:56
daftykinsi saw a delay from just an "ls" on the old, so i did "dmesg | tail" and saw sector repairs16:58
daftykinsthen the notification emails flooded in... i've got 58 emails :D16:58
daftykinsnot quite sure why one of the new ones has gone 'device error' though16:59
daftykinshow jammy, that one older disk is in warranty ^_^17:22
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intrbiz:)17:41
daftykinshopefully the new one is just down to a wonky connection17:41
daftykinsanywho on with the 9TB rsync17:42
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daftykinsin the ongoing game of people signing my email address up to their stuff, apparently i am Dawn - who is a new subscriber to Sky TV17:50
bashrc_email is such a secure protocol17:51
daftykinssure is17:51
daftykinslol through to sky support17:57
daftykins<me> i'm not Dawn!17:57
daftykinshahaha18:02
daftykins"due to data protection we cannot do anything"18:02
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daftykinsso i told him i'd enjoy continuing to watch what Dawn watches on TV18:03
intrbizhmmm, ok, Eclipse really does not want to let me edit a switch statement :(18:09
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davmor2daftykins: you need a nick change to dawnykins obviously ;)18:36
daftykinsseems so!18:38
MooDoobloomin virgin router18:39
daftykinsMooDoo: hmm? flaking out?18:41
MooDoodaftykins: yeah virgin was down for a bit, then the router reset it self, then wouldn't let me connect, so I've just turned it into modem only and attached a dd-wrt router I have and am using that instead18:45
daftykins\o/18:45
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davmor2MooDoo: about time too, you'll have a much nicer time with it honest :D19:24
davmor2bigcalm: your spy camera arrived then19:38
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ali1234what's the deal with /var/log/mysql.log?20:35
ali1234it's just completely empty...20:35
shaunoworst standup routine ever.20:35
ali1234mysql isn't logging anything at all20:36
ali1234which is annoying becuase it is playing up20:36
shaunohm, neither's mine (deb wheezy)20:38
awilkins_Default mysql config is probably "don't log things"21:00
awilkins_I imagine that it can fill a disk quite fast if it actually logs everything21:01
ali1234yeah but when the server just stops responding to any requests for 15 minutes i'd like a log of that somewhere, besides all the 500 errors from apache21:03
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popeyshauno: that made me chuckle, thank you22:09
diddledanI wonder how many messages the combined ubuntu channels have amassed over their lifetime22:33
diddledanI'm guessing it's greater than 56million22:33
* diddledan hides his calculator22:34
shaunosee, that's dangerous.  because now you pretty much have to wander off the to log server and find out22:34
diddledanmaybe22:35
shaunoand this is why I've repeatedly tried to ban you from wondering22:35
diddledanor maybe I just use screengrab: https://mrkr.io/kqeAmCDLBf22:35
shaunoali1234, how familiar are you with a1200 accelerators?  most I find (non-ppc) have a gap waiting for an fpu.  wondering if you just drop that in there and what you actually gain22:38
ali1234yeah you just plug it in22:38
ali1234maybe change a jumper22:38
ali1234and you gain not very much unless you run software compiled for FPU22:38
shaunohm, that's what I feared22:39
diddledana1200?22:39
shaunoI guess it's more for the nuts that stick debian/netbsd on there?22:39
ali1234no, for those you need an MMU22:40
shaunoI thought that just came from using a non-LC proc?22:40
ali1234it does22:40
ali1234but no A1200 shipped with an MMU22:41
ali1234hardly any A4000 shipped with one either22:41
shaunohm, I think I'll hold off on that then, save me 50 quid and taking a soldering iron to my accellerator22:42
ali1234the chips are usually socketed22:43
ali1234diddledan: amiga22:44
diddledanaah, thanks22:44
shaunomine just has a field of solderpads with 68882 written in the middle22:44
ali1234ah, not worth it then22:44
shaunoas does the new one I was looking at :(22:45
ali1234"new"22:45
shaunowell, recent.  it's some crazy german guy who still makes them22:45
shaunohttp://amiga.resource.cx/exp/aca1233   2014  lol22:46
shaunoI'll be ordering a new scandoubler from him, so have been pondering if it's worth picking up while I'm there22:47
ali1234well that looks like it has an MMU at least22:47
shaunohe made my current one, but the new revision has dvi-i, and will work to vga or hdmi22:48
shaunowhich is exactly the kind of crazy I think deserves support22:48
shauno(plus, I do believe my old CRT is old enough to leave home)22:51
daftykinsdiddledan: i wonder how many are me discovering dead disks...23:05
daftykins;)23:05
diddledanlol23:05
daftykinsdiddledan: did you see i managed to kill a disk in each array on the system i'm testing atm?23:06
daftykinsone has bad sectors and the other has just gone AWOL23:06
diddledanouch23:06
daftykins:D23:06
daftykinswill have to check that out tomorrow23:06
diddledandaftykins: in #ubuntu searching for "daftykins dead" I get 60584 results23:08
daftykinsthey wish23:08
diddledanand for "daftykins disk" I get 161957 results23:10
daftykinsdaftykins smartctl ?23:13
daftykinsi swear i need to discover how to alias some of that stuff23:13
diddledanthat's 47497 results23:13
daftykinsaww23:14
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