IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 24 March 2017 (all times are UTC)
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| 17:25 | <hima_> hi
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| 17:26 | <hima_> using epoptes with ltsp
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| 17:28 | is there a way to support sound
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| 17:29 | <vagrantc> sound with ltsp, or sound with epoptes?
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| 17:30 | <alkisg> hima_: if you're asking to listen to sound while assisting a student, the answer is "no, currently; but it's possible with pulseaudio if someone writes code for it"
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| 17:30 | * alkisg waves, btw... | |
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| 17:30 | <alkisg> vagrantc: so the nbd issue is solved?
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| 17:34 | <alkisg> hima__: if you didn't see our answers, check irclogs.ltsp.org
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| 17:36 | <hima__> or sound with epoptes
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| 17:36 | yes sound with epoptes
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| 17:37 | now i use epoptes to teach my children in another room
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| 17:38 | and i wanted to speak to them , does epoptes support that?
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| 17:39 | <alkisg> (07:30:00 μμ) alkisg: hima_: if you're asking to listen to sound while assisting a student, the answer is "no, currently; but it's possible with pulseaudio if someone writes code for it"
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| 17:40 | <hima__> thanks alkisg
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| 17:40 | <alkisg> np
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| 17:50 | <vagrantc> alkisg: in sid, need to make sure it migrates to stretch
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| 17:50 | alkisg: there still is likely a failure to reboot problem
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| 17:51 | alkisg: and I should probably do more testing, to make sure it's fixed sufficiently
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| 18:24 | <sniper> hello
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| 18:24 | <alkisg> Hello
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| 18:24 | <sniper> asl
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| 18:24 | <Guest6792> asl
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| 18:26 | <alkisg> vagrantc: about shutdown, stgraber's hack was "poweroff -fp". My hack is "sleep 10 to allow shutdown services like nbd/ssh to properly disconnect; poweroff -fp"
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| 18:26 | stgraber's version was less error prone but it left processes and temp files on the server
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| 18:26 | <vagrantc> alkisg: where's the hack injected?
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| 18:27 | <alkisg> The real fix of course is to be able to reload the initramfs and properly shutdown the root file system from there
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| 18:27 | ...which dracut can do, but initramfs-tools, not really
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| 18:27 | The ltsp service files are supposed to call nbd-disconnect
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| 18:27 | /usr/share/ltsp/nbd-disconnect
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| 18:28 | Btw, systemd has other issues that block shutdown as well, that are unrelated to ltsp
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| 18:31 | <vagrantc> i've seen it take a long time to shutdown on various laptops occasionally
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| 18:31 | but never seen it block that i can recall
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| 18:32 | <alkisg> If it finally shuts down, then it's not related to ltsp
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| 18:32 | Er, unless RM_SYSTEM_SERVICES deletes some services that confuse systemd
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| 18:32 | I've seen various normal installations that take a long time to shutdown
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| 18:33 | On such cases, one can enable persistent systemd journal to be able to examine what part blocks the shutdown process
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| 18:34 | The steps to enable persistent systemd journal are mentioned in comment 10 of https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1492546
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| 19:03 | <syrius> oh mylanta...
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| 19:03 | just swapped the switch out on our ltsp network
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| 19:03 | it's flying now
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| 19:03 | old sys admin was using gigabit NIC's on all the computers but only a 100mbit switch
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| 19:04 | <||cw> lol
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| 19:04 | nice one
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| 19:04 | <vagrantc> heh
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| 19:04 | <||cw> it's pretty amazing was giving it an order of magnitude more resources will do
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| 19:04 | <syrius> it's.. insane
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| 19:05 | i'm hero of the office right now
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| 19:05 | haha
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| 19:08 | <alkisg> The most stupid issue was when we had gigabit switch, gigabit server, and 100 mbps clients, and due to the flow contol issue the speed was at 100 mbps only
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| 19:10 | <syrius> ouch
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| 19:11 | <alkisg> It took us months to realize it, and years until we found methods to disable it even on unmanaged switches
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| 19:11 | <syrius> lol
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| 19:11 | we've had this setup for years too :\
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| 19:12 | <alkisg> !lan-benchmark
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| 19:12 | <ltsp> lan-benchmark: If you have a mixed-speed network (gigabit server<=>switch connection, and 100 Mbits/sec clients<=>switch connections), then you might suffer from the !flow-control issue. To benchmark your LAN with epoptes, see http://www.epoptes.org/documentation/lan-benchmark
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| 19:12 | <alkisg> ...we developed this ^ to make sure all is running smoothly :)
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| 19:12 | <syrius> yeah i'm watching the network w/ iftop on the server
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| 19:12 | and can see the clients pushing > 100mbit
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| 19:28 | <||cw> syrius: next step: port bonding on the server
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| 19:29 | <syrius> oooh
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| 19:29 | we only have 3 thin clients max at one time right now.. most times it's 1-2
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| 19:29 | so it's not an immediate need, but that's cool. better than having to switch everything to 10gbit
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| 19:37 | <||cw> if your switch behaves right you'd only need the server on 10g
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| 19:43 | <syrius> yeah we have a nice switch, but i keep forgetting the "good" one last couple days
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| 19:43 | at this moment it's a regular netgear gigabit switch.
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| 19:43 | so monday i'll remember to bring in the good one
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