IRC chat logs for #ltsp on irc.libera.chat (webchat)


Channel log from 5 October 2008   (all times are UTC)

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02:29
<monteslu>
warren, does f9+ltsp5 have the same nbd issues that ubuntu does?
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07:17
<warren>
monteslu: what 'Issues"?
07:25
<ogra>
warren, reconnect
07:25
<warren>
correct, nobody used -persist before
07:26
<ogra>
you need the persist option for the client so it reconnects automatically on a server downtime
07:26
<warren>
I didn't try it because vagrantc said it caused instability?
07:26
<ogra>
nah, it doesnt
07:26
didnt stephane submit that yesterday to the upstram code (for swap as well)
07:27
*upstream
07:28
<warren>
that isn't upstream
07:28
ogra: only debian and ubuntu use that part
07:29
<ogra>
you dont use nbdswap ?
07:29
oh, well there persist would probably make no sense anyway
07:29
as you would get an empty swapfile after a server reboot
07:30
i think thats what vagrant meant with instability, it makes only sense with readonly stuff
07:30* ogra remembers again
07:32
<warren>
if that's the case, then the -persist doesn't help
07:32
you need to TURN OFF nbd swap to use your ltsp-cluster
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07:32
<ogra>
it helps with the rootfs
07:32
but not with swap
07:32
<warren>
until it realizes swap is gone
07:32
boom
07:33
the kernel VM is aggressive at using swap
07:33
even if you have ample amounts of ram
07:33
<ogra>
the root image content doesnt change, it will be the same after a reconnect, if you lose swap you are lost anyway
07:33
<warren>
you need swap on a different server then
07:33
<ogra>
(but imho you are lost if you even *use* it )
07:33
thats why i pushed so much for compcache
07:34
which is in intrepid now
07:34
and should prevent swap usage to a certain point
07:35
we should probably consider setting swappiness to a low value upstream
07:35
i think we all use kernels that understand that setting
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08:31
<warren>
ogra: setting swapiness is not a good idea. you know very well that isn't sufficient to protect a user
08:31
<ogra>
no, but it lowers the risk
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08:41
<alkisg>
stgraber, italc has problems with the "guest" feature of intrepid: "cannot start ISD server" if I remember well. Is this a known problem? I think a check (if not already loaded ...) would be useful in this case but in other cases also (I've seen this error many times).
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09:16
<monteslu>
ogra, you still there?
09:17
I've been dead in the water for a few days now. "Starting Gnome display manager" hanging. Tons of nbd I/O error messages in /var/log/messages
09:17
no one on the list seems to have any ideas about what to do
09:18
Pretty sure the school has lost faith in ltsp this year because of all the downtime, and I'm not sure how to fix it. We've been using ltsp for years
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09:36
<warren>
anyone here for the k12linux meeting?
09:37
(I didn't tell anyone that I would be here today.)
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10:03
<petre>
warren, ping
10:04
<warren>
petre: pong
10:04
<petre>
I got an email pointing out that I'd forgotten to do the CLA for Fedora contributors
10:04
which I've now completed
10:05
but the email also said I needed a sponsor.
10:05
I also thought I saw something in the CLA process saying I need to email a pdf of some sort of signed agreement
10:05
do you know anything about this process?
10:06
<warren>
petre: there is no PDF of signed agreement
10:06
petre: cla is only a click thru
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10:06
<warren>
petre: you don't need a sponsor if you are doing only wiki edits
10:06
<petre>
right, and I did that, and it says I'm all completed
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11:05
<monteslu>
so how do i kill all the nbd stuff?
11:06
my clients are all 128mb or higher
11:06
should be enough right?
11:06
Sure would be nice if I had a clues as to what the edubuntu 8.04 defaults were
11:07
there should be a default lts.conf with that stuff in it, even if commented out
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11:23
<johnny>
monteslu, ??
11:23
you need nbd for boot
11:24
nbd should be faster than booting from nfs
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11:27
<monteslu>
you need nbd?
11:27
it thought it was just for swaping
11:27
<johnny>
nbd swap is off by default
11:27
<monteslu>
well I've got thousands of nbd I/O errors in /var/log/messages
11:28
this is a normal 8.04 ltsp install, single server
11:28
<johnny>
yes.. it's why you have to run ltsp-update-image
11:28
when you change the chroot
11:29
<monteslu>
i didn't change anything
11:29
i did a the build and it was working
11:29
originally, i mean. I did the build the like the doc said
11:29
<johnny>
just saying that if you ever change the chroot
11:29
<monteslu>
I'll give update a shot though
11:29
<johnny>
like adding proprietary drivers
11:29
<monteslu>
ahh, ok
11:29
<johnny>
this is partly why lts.conf was moved from /etc/lts.conf in the chroot to being served from tftp
11:30
<monteslu>
hmm... maybe there was a kernel update or something since i built it at first
11:30
<johnny>
well.. it could just be a bug
11:30
does it appear after every reboot?
11:30
<monteslu>
yeah, and the thin clients are hung up on "negotiation:"
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11:31
<johnny>
and this is a fresh chroot since?
11:31
<monteslu>
but I"m also having intermittent problems with gdm launching, not sure if its cause or effect
11:31
<johnny>
since whne?
11:31
ther is no gdm
11:31
only ldm
11:31
<monteslu>
"Starting Gnome display manager" on the server
11:31
<johnny>
oh
11:31
<monteslu>
that hangs
11:31
<johnny>
that's a totally seperate issue
11:31
<monteslu>
it cleared up when i switched to framebuffer
11:31
<johnny>
not ltsp related at all
11:31
<monteslu>
but it started again
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11:32
<monteslu>
sure seems to be related, since i can't boot a thin client message if that's up
11:32
if it's passed that service i can
11:32
<johnny>
sounds like x could have issues on your server?
11:32
install updates?
11:32
<monteslu>
upstart seems to have dependent things on that
11:32
its fully updated
11:33
<johnny>
maybe it's too updated :)
11:33
lol
11:33
<monteslu>
heh
11:33
shoulda stuck with 7.04
11:33
8.04 has been a nightmare for me
11:33
<johnny>
i only have a few problems
11:33
with 8.04
11:33
<monteslu>
I've probably had less than 50% uptime this year
11:33
<johnny>
been fine for awhile now
11:33
<monteslu>
lots of reasons, but this is the latest thing
11:34
<johnny>
the packages for 7.04 were too old
11:34
for me to continue using them
11:34
i guess i'd rather fix bugs than use packages that nobody except the ubuntu developers can help solve
11:35
since the upstream developers have already moved on at that time
11:35
<monteslu>
really seems that there's not love for the project anymore. Things just worked when it was all in jammcq's hands
11:36
<johnny>
that is incorrect
11:36
<monteslu>
not its all over the place
11:36
<johnny>
there are more ltsp supported distros now than before
11:36
<monteslu>
right, but each has its own slew of problems
11:37
<johnny>
nobody else could or would touch ltsp4 code..
11:37
<monteslu>
k12 was one very active list
11:37
<johnny>
including myself
11:37
i probably wouldn't be here at all, if it weren't for ltsp5
11:38
<monteslu>
I'm a developer myself, so I know where you're coming from.. .but I'm also a volunteer for a school
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11:38
<monteslu>
Things just seems splintered, and it has gotten much worse this year since ltsp moved from edubunut to ubuntu
11:38
<johnny>
huh?
11:39
ltsp never moved anywhere
11:39
that was a policy thing
11:39
not a code thing
11:39
<monteslu>
its not an edubuntu project
11:39
right
11:39
<johnny>
edubuntu doesn't exist
11:39
<monteslu>
so the list is dead
11:39
<johnny>
it is now ubuntu: education edition
11:39
which sounds alot better
11:40
than edubuntu.. which would be stuck with gnome
11:40
better to have one distro.. with the projects based on that
11:40
<monteslu>
I just mean that the list was active a year ago, and it was easier to find help. Now i have to cross post to k12osn, edubuntu-users, and ltsp-discuss
11:41
<johnny>
why does k12osn still exist?
11:41
or edubuntu-users..
11:41
it'd be nice of edubuntu-users or whatever it should be called now.. would just focus on techniques and programs
11:41
but not support
11:41
<monteslu>
that's edubuntu-devel
11:41
so where should support be?
11:42
<johnny>
should have a linux-education list or something
11:42
where folks just talk about what programs to use to solve which problem
11:42
and then have ltsp-support or whatever
11:42
<monteslu>
agreed, but there isn't and that's why i think things are worse right now then they used to be when it was all k12ltsp and one big community
11:42
<johnny>
for ltsp specific problems
11:42
that's a solvable problem at least
11:43
i rarely find myself trusting list posts anyways i guess
11:43
on any list
11:43
usually they are always too old to trust
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11:44
<johnny>
it's rare that i run into a problem that any list post helps me solve..
11:44
i think more of a problem..
11:44
is that posts don't flow to becoming full fledged documentation objects
11:44
but that problem affects most open source projects
11:44
hell.. any software problem
11:44
project*
11:45
<monteslu>
sure, but the nice thing about the old k12ltsp list was that the problems were common, and people were pretty helpful
11:46
ltsp-discuss is more of what you're talking about. It could be anything, and it would almost never apply to something you're running into
11:46
at least from a support perstpective
11:48
<stgraber>
ogra: ping
11:48
ogra: saw my pm ?
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14:32
<b52lap>
hi
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22:11
<warren>
I'm tagging ltsp-trunk soon.
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