Hi Johan, do you see out of memory messages in the kernel log?
On Sat, May 7, 2016 at 9:09 PM, Johan Kragsterman <
johan.kragster...@capvert.se> wrote:
>
> Hi, Alkis!
>
>
> -----Alkis Georgopoulos <alk...@gmail.com> skrev: -----
> Till: ltsp-discuss@lists.sourceforge.net
> Från: Alkis Georgopoulos <alk...@gmail.com>
> Datum: 2016-05-07 20:24
> Ärende: Re: [Ltsp-discuss] swap -again!
>
> From http://manpages.ubuntu.com/lts.conf:
>
> > NBD_SWAP
> > boolean, default False
> > Set this to True if you want to turn on NBD swap.
> > If unspecified, it's automatically enabled for thin clients with
> > less than 300 MB RAM and for fat clients with less than 800 MB RAM.
>
> Your clients have more than 800 MB RAM, so they don't automatically get
> a swap unless you specifically set NBD_SWAP=True in lts.conf.
>
>
>
> I already tried that, but it still look like this:
>
> admin@ltsp102:~$ sudo cat /proc/swaps
> [sudo] password for admin:
> Filename Type Size Used
> Priority
> admin@ltsp102:~$ free
> total used free shared buff/cache
> available
> Mem: 7582448 1802804 2236020 1461384 3543624
> 4224156
> Swap: 0 0 0
> admin@ltsp102:~$
>
>
> Shouldn't it show something here if swap was configured?
>
>
>
>
>
> Note that even if you set a swap, by default it's just 512 MB, so it
> won't save you if you think that your 8 GB of RAM isn't enough and that
> the problem is indeed lack of free memory...
> ...which I doubt. I'd suggest you look elsewhere for fixing the crashes,
> e.g. Xorg/graphics drivers or kernel issues.
>
>
>
>
>
> Well, graphics drivers should be fine, since I ran the exact same hardware
> on 14.04, kernel issues I don't know about.
>
> But I've seen a discussion about the authfile = /etc/ltsp/nbd-server.allow
>
> People still complain about this, last post was 16.03.28. This file is
> refered to by the swap.conf, but doesn't not exist. Of coarse I can create
> it myself, but I don't actually know what to put in there...
>
>
>
>
> --
> Alkis Georgopoulos
> LTSP developer
> Professional LTSP support: alk...@gmail.com
>
>
> On 06/05/2016 11:37 πμ, Johan Kragsterman wrote:
> >
> > Hi!
> >
> >
> > I tried asking a question about swap the other day, but nobody seems to
> answer...
> >
> > So I try again:
> >
> > There seems to be no swap configured for my fat clients, since it looks
> like this:
> >
> > admin@ltsp102:~$ sudo cat /proc/swaps
> > Filename
> > admin@ltsp102:~$
> >
> > Type Size Used Priority
> > admin@ltsp102:~$ sudo free
> > total used free shared buff/cache
> available
> > Mem: 7582448 1976300 1930544 1416000 3675604
> 4099192
> > Swap: 0 0 0
> > admin@ltsp102:~$
> >
> >
> > nbd-server is up and running, connections are established:
> >
> > admin@ltsp102:~$ netstat -tu | grep nbd
> > tcp 0 0 192.168.20.102:55232 server:nbd
> ESTABLISHED
> > tcp 0 0 192.168.20.102:33850 server:nbd
> CLOSE_WAIT
> > tcp 0 0 192.168.20.102:55366 server:nbd
> CLOSE_WAIT
> >
> >
> > System is an LTSP server KVM virtual machine on OmniOS with enough
> resources, and the fat clients are quad core celerons with 8 GB DDR3
> memory. 8 GB is of coarse a lot, but there seem to be memory loss that
> causes reboot to login screen, or get the entire client to freeze, which
> forces a hard reboot.
> >
> > I checked some other resources, if I should configure swap through
> ldm.conf, but since I didn't need that in 14.04, I don't understand why I
> should need it now...? There is no ldm.conf file in
> /var/lib/tftboot/"myclient", and it was not in 14.04, so this must all be
> default then.
> >
> > Only thing I changed since 14.04 is that I now use another default GW, I
> don't go through the LTSP server anymore. But the server responds to the
> "server" ping in the client network, so I can't see that as a problem.
> >
> > So I would really appreciate some input here...
> >
> >
> > Best regards from/Med vänliga hälsningar från
> >
> > Johan Kragsterman
> >
> > Capvert
> >
>
>
>
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>
>
> ------------------------------------------------------------------------------
> Find and fix application performance issues faster with Applications
> Manager
> Applications Manager provides deep performance insights into multiple
> tiers of
> your business applications. It resolves application problems quickly and
> reduces your MTTR. Get your free trial!
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> Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto:
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your business applications. It resolves application problems quickly and
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