On Mon, Aug 31, 2009 at 5:47 AM, Martin Langhoff
<martin.langh...@gmail.com>wrote:
> Hi Caroline,
>
> sorry about the delay -- catching up on XS things now -- enormous
> thanks for the report.
>
> So controlling for Gadget and reg'd numbers, it seems that the
> ejabberd version (or perhaps other XS compoment) version makes a
> difference.
>
> The ejabberd upgrade was very significant, and the rework of the
> 'online' patch was also fairly important (I assume you are using the
> 'online' SRG as it's the 'default' config).
>
> In terms of Sugar "preferring" salut, and having to restart...
>
> - Maybe there are connectivity issues (high latency?) to the XS?
>
> - If connectivity to the XS is good, it should be enough to wait, as
> I've seen Sugar (0.82 at least) try Gabble every once in a while...
>
Do you know how much wait it is and where it is set in the code?
Thanks,
Caroline
>
> - If waiting is not enough, it should be enough to reconnect to the
> AP. That definitely triggers a Gabble connection attempt
>
> IOWs if you do have to restart, there maybe a regression there...
>
> Overall, I find the relatively fast Telepathy switching a bit
> frustrating as a programmer, but I've seen how it's useful in real
> world usage.
>
> All I would ask for -- should a genius-in-a-lamp ask for my wishes --
> would be some subtle UI hint. Maybe a variation on the quater-arcs
> that mark the connected AP or something like it...
>
> cheers,
>
>
>
> m
>
> On Tue, Aug 25, 2009 at 5:18 AM, Caroline
> Meeks<carol...@solutiongrove.com> wrote:
> > Again we are working with
>
>
> > XS1 - responding to jabber.sugarlabs.org. Installed a few months ago and
> > currently with >1000 registered users, it tends to have about 20 people
> on
> > it these days.
> > XS2 - Installed a few weeks ago, responding to
> > schoolserver.xsdev.solutiongrove.com with about 100 registered users
> > First i connected to XS1 and joined a Turtle Art instance. CPU usage
> rose
> > to 100%. When we stopped sharing the TA it dropped back down.
> > We then shared a chat and CPU again rose to 100%.
> > Next we switched to testing on XS2. Sharing Turtle Art and Chat did not
> > spike the CPU.
> > We felt there were 4 differences between XS1 and XS2
> >
> > The number of registered users
> > XS 1 is an older version of the XS 0.5.2. XS2 is 0.6beta
> > XS 2 has Gadget
> > XS1 had about 20 users logged in XS2 had 4 or 5
> >
> > Next we turned off Gadget on XS2 and repeated our test. No CPU spike.
> Thus
> > we think #3 is unlikely to be the important difference.
> > Next we deleted the registered users on XS1 and switched our testing back
> to
> > XS1. When we shared TA and chat there was still spikes up to 100% CPU.
> > Thus we think #1 is unlikely to be the important difference.
> > We will work on this again tomorrow so let us know your ideas
> > A separate issue is that it hard to get the computers to connect up the
> the
> > XS. They tended to stay on Salut, sometimes they would goto Jabber on
> > resstart, other times not. We could really use better control and the
> > ability to force one or the other.
> > Here is the log of our conversation.
> >
> > Josely is Caroline at the GPA School
> > 12:06 < joasely-2260> the jabber server is back up to 100% CPU usage.
> > 12:06 < joasely-2260> 22 people are online. over 1000 are registered
> > 12:06 < joasely-2260> one turtle Art is being shared.
> > 12:06 < joasely-2260> the load did not seem to change when the GPA
> computers
> > I am controlling stopped sharing turtle art
> > 12:07 < joasely-2260> current hypothisis - its th 1000 registered users
> that
> > is making the difference between decent performance and 100% CPU
> > 12:08 < daveb> jabber is back to 0%cpu
> > 12:09 < joasely-2260> Interesting note. The Red Turtle Art activity seems
> to
> > have been started by David who is not online anymore.
> > 12:09 < joasely-2260> ah very very interesting.
> > 12:09 < joasely-2260> let me join the turtle art again.
> > 12:09 < daveb> joasely-2260: ok
> > 12:09 < daveb> we have cpu logs every minute back until august 15
> > 2:09 < joasely-2260> ok I have joined the Turtle Art
> >
> > 12:10 < joasely-2260> lets give it 5 minutes with just one person sharing
> > it. then I'll add another peron
> >
> > 12:10 < daveb> up to 100%
> > 12:10 < joasely-2260> so note, we can scratch they hypothisis that its
> the
> > 1000+ registered users.
> > 12:10 < daveb> yes
> > 12:11 < joasely-2260> ok very cool.
> >
> > 12:11 < joasely-2260> so sharing a turtle art activity causes 100% CPU
> >
> > 12:11 < joasely-2260> I'm gong to quit TA
> > 12:11 < tomeu> erikos: yes
> > 12:11 < satellit_> daveb: that TA has been up for several days
> >
> > 12:11 < joasely-2260> let me know when its back down and I'll try a chat.
> > 12:12 < joasely-2260> thanks satelit_
> >
> > 12:12 < satellit_> I think it is an orphan
> >
> > 12:13 < daveb> satellit_: yes but when someone joins te cpu spikes
> > 12:13 < daveb> joasely-2260: should we quit that and try a different
> > activity?
> > 12:13 < daveb> unfortunatly i tink debug is off on jabber
> >
> > 12:13 < daveb> ok cpu back to 0%
> >
> > 12:14 < satellit_> daveb: is there a way to kill orphan shared items?
> > 12:14 < daveb> satellit_: i have no idea
> >
> > 12:14 < joasely-2260> started chat on one computer
> >
> > 12:14 < daveb> cpu 100%
> >
> > 12:15 < joasely-2260> wow before I even joined it anywhere else
> > 12:15 < daveb> yes
> > 12:15 < joasely-2260> still at 100%?
> > 12:15 < daveb> yes
> > 12:15 < daveb> now
> > 12:15 < daveb> did we ever get this on the 0.6 server?
> > 12:15 < joasely-2260> still at 100%?
> > 12:15 < daveb> 60% now
> > 12:15 < daveb> down to 0
> > 1
> > 12:15 < joasely-2260> i'm not sure I thought both XS1 and XS2 was 0.6
> >
> > 12:15 < joasely-2260> ok now going to join with another person
> > 12:16 < daveb> joasely-2260: no XS1 is 0.5.2
> > 12:16 < joasely-2260> ok second person joined
> > 12:16 < tomeu> erikos: fortunately is not big nor invasive, so won't be
> such
> > a big deal
> > 12:16 < daveb> cpu between 0 and 3 %
> > 12:17 < joasely-2260> hmm ok I'll chat with myself
> >
> > 12:17 < joasely-2260> anything?
> > 12:17 < daveb> cpu up to 100
> >
> > 12:17 < joasely-2260> ok so doing anythign with collaboration pops the
> CPU
> > to 100%
> > 12:18 -!- iwikiwi-1f30 (n=...@61.17.45.12) has quit: Read error: 60
> > (Operation timed out)
> >
> > 12:18 < joasely-2260> should I try setting these to XS2?
> > 12:18 < joasely-2260> and doing the same test?
> > 12:18 < daveb> sure
> >
> > 12:18 < daveb> let me login over there
> > .
> > 12:19 < daveb> joasely-2260: ok i am ready
> > .
> > 12:20 < joasely-2260> schoolserver.xsdev.solutiongrove.com right?
> > 12:20 < silbe> tomeu: not logging.exception("message") ?
> > 12:20 < joasely-2260> I'm back to salut :(
> > 12:20 < phitoo> sdziallas: Remind me where to get the rpm. That's not
> part
> > of the distribution, right.
> > 12:20 < satellit_> no it hangs on boot. do I have to do an interactive
> > command? on boot
> > 12:20 < daveb> joasely-2260: correct
> >
> > 12:21 < joasely-2260> hmm maybe I should reboot
> >
> > 12:22 < daveb> joasely-2260: it should work without restarting but
> sometimes
> > that helps to get telepaty working again
> > 1
> > 12:24 -!- CarolineGPA-2260 (n=...@216.163.216.2) has joined #sugar
> > 12:24 < CarolineGPA-2260> nope still salut
> > 12:24 < daveb> oh i bet its misconfigured
> > 12:24 < daveb> when you change te domain name it messed up ejabberd
> > 12:25 < CarolineGPA-2260> how?
> > 12:25 < tomeu> erikos: it should conflict
> >
> > 12:25 < daveb> CarolineGPA-2260: ejabberd is bound to the host name
> > 12:25 < daveb> kind of annoying
> > 12:25 < CarolineGPA-2260> ah maybe if I delete the keys it'll work again?
> > 1
> > 12:25 < CarolineGPA-2260> so right now you can't just change your host
> name
> > and connect to a new jabber server?
> >
> > 12:26 < CarolineGPA-2260> should I try deleting the owner keys and
> restart?
> > 12:27 < daveb> no
> > 12:27 < daveb> one sec
> > 12:27 < daveb> its the server side
> >
> > 12:32 < daveb> somethinbg is screy
> > 12:32 < daveb> the ejabberd scripts are WAY too picky you need to restart
> > the whole server
> > 12:32 < daveb> i thought I fixed that but must have missed something.
> > 12:32 < CarolineGPA-2260> ok
> > 12:32 < CarolineGPA-2260> how long do you think the fix will take?
> > 12:33 < daveb> a minute or two
> > 12:33 < CarolineGPA-2260> oh ok :)
> >
> > 12:37 < daveb> CarolineGPA-2260: well the server did not restart and I
> can't
> > login to the host machine either
> > 12:38 < daveb> jabber.sl.o is back to 100%
> > 12:38 < daveb> ls
> > 12:41 -!- teefal (n=tee...@24.229.118.195) has quit: "The computer fell
> > asleep"
> > 12:41 < daveb> CarolineGPA-2260: it looks like jabber is stll broken on
> XS2
> > 12:41 < daveb> it does not wish to behave
> > 12:42 < CIA-73> sugar: sayamindu * rddfc2879a308 / (bin/sugar-session
> > extensions/cpsection/keyboard/view.py): Using logging.exception
> > 12:44 < daveb> CarolineGPA-2260: nevermind i think its working now :)
> >
> > 12:46 < CarolineGPA-2260> back I had a call
> > 12:46 < CarolineGPA-2260> should I give up for today?
> > 12:46 < daveb> CarolineGPA-2260: it looks like te server is up
> > 12:46 < daveb> 1 user online
> > 12:46 -!- tamiel (n=tam...@213.30.183.226) has quit: "leaving"
> > 12:46 < CarolineGPA-2260> are you able to connect?
> > 12:47 < daveb> i did not try yet
> > 12:47 < CarolineGPA-2260> ok I'm restarting gpa2
> > 12:48 -!- kristianpaul (n=krist...@190.165.132.161) has joined #sugar
> >
> > 12:49 < daveb> i am on xs2
> > 12:49 < daveb> i see caroline1
> > 12:50 < CarolineGPA-2260> great i see you and caroline2
> > 12:50 < CarolineGPA-2260> what is the CPU?
> > 12:50 < daveb> 0 now
> > 12:50 < daveb> i don't see you anymore
> > 12:50 < CarolineGPA-2260> ok starting a chat
> > 1
> > 12:50 < CarolineGPA-2260> chat is starting, one user
> >
> > 12:50 < daveb> CarolineGPA-2260: nevermind i had typed in seach
> > 12:51 < daveb> CarolineGPA-2260: cpu 0
> > 12:51 < daveb> CarolineGPA-2260: 1%
> > 12:51 < CarolineGPA-2260> add a person
> >
> > 12:52 < daveb> it goes to 1% for a second then back to 0
> > 12:52 < daveb> CarolineGPA-2260: want to start turtle art?
> > 12:52 < daveb> CarolineGPA-2260: also not gadget is configured on here
> >
> > 12:57 < CarolineGPA-2260> dabeb hows the cpu doing?
> >
> > 12:57 < daveb> CarolineGPA-2260: 0%
> > 12:57 < daveb> i shared tutleart
> >
> > 12:58 < CarolineGPA-2260> joining TA
> > 12
> > 12:58 < daveb> CarolineGPA-2260: ok. cpu went to 1% for a second
> >
> > 12:59 < CarolineGPA-2260> joining TA with 2
> >
> > 12:59 < daveb> still at 0
> > 12:59 < daveb> goes up when you actually do something then back to 0
> > 12:59 < daveb> of cours eonly 3 users online
> >
> > 12:59 < daveb> need 20 or so to compare better
> > 12:59 < tomeu> silbe: ok, I guess you can recover it from git if you want
> > 12:59 < silbe> tomeu: but good to know it's buried in git somewhere and i
> > just need to revive it :)
> > 13:00 < silbe> tomeu: similar to the data store test suite :)
> > 1
> > 13:00 < CarolineGPA-2260> ok so we have 3 differences. 1- 3 users vs 22
> > users. 2 - less then 100 registered users vs 1000+ registered users and
> 3.
> > XS .52 vs .60
> > 13:00 < CarolineGPA-2260> correct?
> >
> > 13:00 < daveb> CarolineGPA-2260: gadget is on XS2
> >
> > 13:01 < CarolineGPA-2260> ok does that make difference #4?
> >
> > 13:01 < CarolineGPA-2260> does it make sense to turn off gadget and see
> if
> > we see a differnece?
> > 13:02 < daveb> CarolineGPA-2260: sure let me see if I can actually do
> that
> >
> > 13:02 < CarolineGPA-2260> ok I'm gong to run downstairs, they just
> annouced
> > free food ;)
> >
> > 13:03 < CarolineGPA-2260> I need to chat up the teachers too so I maybe a
> > while if I'm lucky
> >
> > 13:03 < daveb> ok
> > 13:03 < daveb> CarolineGPA-2260: ok i restarted without gadget
> >
> > 13:09 < CarolineGPA-2260> looks like we have 5 connected. me 3 times you
> > twice
> > 13:09 < CarolineGPA-2260> hows the cpu daveb?
> >
> > 13:18 < CarolineGPA-2260> I'm adding some more computers here. they were
> all
> > unplugged
> > 13:18 < daveb> ok
> > 13:18 < daveb> i see tem
> >
> > 13:35 < CarolineGPA-2260> daveb, how is the CPU?
> >
> > 13:35 < daveb> CarolineGPA-2260: <1%
> > 13:36 < daveb> CarolineGPA-2260: i shared a new turtle art with 2 people
> > 13:36 < CarolineGPA-2260> we are now running without gadget?
> >
> > 13:36 < CarolineGPA-2260> i'll join in
> > 13:36 < daveb> CarolineGPA-2260: without gadget, correct
> >
> >
> > 13:38 < CarolineGPA-2260> GPA1 fell back to salut
> >
> > 13:38 < CarolineGPA-2260> GPA2 and 3 are in the TA I think.
> >
> > 13:38 < CarolineGPA-2260> pretty messed up sharing though
> >
> > 13:40 < CarolineGPA-2260> hows the cpu?
> >
> > 13:41 < daveb> CarolineGPA-2260: 0 still
> >
> > 13:42 < daveb> CarolineGPA-2260: its not clear exactly what is different
> > 1
> > 13:42 < CarolineGPA-2260> daveb sent you a video of how it looks on the
> > computers here.
> > 13:43 < CarolineGPA-2260> lets do a chat too
> > 13:43 < daveb> ok
> > 13:43 < daveb> CarolineGPA-2260: shared chat
> >
> > 13:44 < CarolineGPA-2260> joined
> > 13:44 < CarolineGPA-2260> hows it looking
> > 13:45 < daveb> cpu went to 9.6% then right back to 0
> > 13:45 < CarolineGPA-2260> GPA2 has now lost connection to the jabber
> server
> > 13:45 < CarolineGPA-2260> ok so the experiement was, was Gadget what was
> > making the difference
> > 13:45 < daveb> CarolineGPA-2260: weird. still 0%
> > 13:46 < daveb> CarolineGPA-2260: right it did not appeat to affect with a
> > small number of online users
> > 13:46 < CarolineGPA-2260> and the result was no. It works fine with
> Gadget
> > off or on.
> > 13:46 < CarolineGPA-2260> under these conditions
> >
> > 13:46 < CarolineGPA-2260> so we have 3 other difference to look at 1.
> > registered users, 2. .52 vs 6 3. number of total users logged on
> > 13:46 < CarolineGPA-2260> does that sound right?
> > 13:46 < daveb> CarolineGPA-2260: correct.
> > 13:46 < daveb> so there could be some weird interaction wit
> > 13:47 < daveb> collab wit a large number of registered users
> > 13:47 < daveb> like it has to loop through them or someting weird.
> >
> > 13:47 < CarolineGPA-2260> ok so one option is to switch the DNS so
> > jabber.sl.org points to XS2
> > 13:47 < CarolineGPA-2260> the other option is to delete the registered
> users
> > on XS1
> >
> > 13:49 < CarolineGPA-2260> so the log has it and incase anyone wants to ee
> > here is the video of how TA sharing looked:
> > http://www.youtube.com/watch?v=APt0J4ln28w
> > 13:50 < daveb> i tink that is a TA artifact. I saw that here also. One
> had a
> > square and te other te turtle had not moved.
> > 13:50 < CarolineGPA-2260> yeah I think that is a separate issue, which I
> > will report later.
> >
> > 13:50 < daveb> CarolineGPA-2260: ok right, we need to see if alot of
> > registered users on XS2 works with collab.
> > 1
> > 13:50 < daveb> i can do hyperactivity and add alot fo random users
> quickly
> >
> > 13:51 < CarolineGPA-2260> seems like the one thing we can do right now is
> > delete the users on XS1 and see if it works any better
> > 13:51 < daveb> ok
> > 1
> > 13:51 < daveb> makes sense.
> > 13:51 < CarolineGPA-2260> ok shall I swich the gPA back to
> > jabber.sugarlabs.org?
> > 13:52 < daveb> wait until i restart it
> > 13:52 < CarolineGPA-2260> ok
> >
> > 13:54 < daveb> CarolineGPA-2260: ok to switch
> > 13:58 < CarolineGPA-2260> ok all switched
> > 13:58 < CarolineGPA-2260> but only GPA 1 seems to be on jabber and I
> don't
> > see anyone else
> > 13:58 < CarolineGPA-2260> are you connected?"
> >
> > 14:00 < daveb> CarolineGPA-2260: me too!!
> > 14:00 < daveb> it says
> > 14:00 < daveb> 23 people online
> > 14:00 *** erikos is out for today
> > 14:00 < daveb> and new registered users
> > 14:00 < daveb> wait
> > 14:00 < daveb> duh
> > 14:00 < daveb> one sec
> > 14:00 < daveb> i broke it.
> > 14:00 -!- erikos (n=eri...@g225093143.adsl.alicedsl.de) has quit:
> "Leaving"
> > 14:00 < daveb> again.
> > 14:00 < daveb> :)
> > 14:00 < daveb> CarolineGPA-2260: need to redo the shared roster
> > 14:01 < CarolineGPA-2260> ok
> > 14:01 < daveb> CarolineGPA-2260: should fix itself in a minute i hope
> > 14:02 -!- blendmaster1024 (n=blend...@75-169-206-152.slkc.qwest.net) has
> > joined #sugar
> > 14:05 < dfarning> sdziallas: good morning! sorry for the late response I
> am
> > still a irc/fedora/pidgin newbie. I need to figure out how to get the
> > screen blink.
> > 14:06 < daveb> CarolineGPA-2260: restarting ejabberd
> > 14:06 < daveb> wait!
> > 14:06 < daveb> its working finally.
> > 14:06 < daveb> wait restart will be better
> > 14:06 < CarolineGPA-2260> I see Jack
> > 14:06 < sdziallas> dfarning: hey :) (heh. not sure about pidgin, I'm
> using
> > xchat-gnome - which blinks)
> > 14:06 < CarolineGPA-2260> are you restarting again?
> > 14:06 < daveb> yeah you can only see people
> > 14:07 < daveb> who were online AFTER i create the group
> > 14:07 < daveb> restarted
> > 14:07 < daveb> should pop up now
> > 14:07 < daveb> there they go
> > 14:07 < CarolineGPA-2260> yup hows the cpu?
> > 14:08 < daveb> 129%!
> > 14:08 < CarolineGPA-2260> nope, now all my computers are local
> > 14:08 < daveb> i see alot of people now
> > 14:08 < daveb> yours will have to reset telepathy
> > 14:08 < CarolineGPA-2260> ok so I think we can eliminate the number of
> > registered users as the issue
> > 14:08 < daveb> takes a few mins
> > 14:08 < daveb> wait its down
> > 14:08 < daveb> to 6
> > 14:08 < CarolineGPA-2260> I'll restart everything but 1
> > 14:09 < daveb> so it looks like its a high load to update 20 people's
> > neighborhood though
> > 14:09 < daveb> i will try turtle art
> > 14:10 < CarolineGPA-2260> ok but if its transient thats not really that
> bad.
> > 14:10 < daveb> CarolineGPA-2260: correct.
> > 14:10 < CarolineGPA-2260> lets see if we can peg it again sharing TA and
> > chat with a few people.
> > 14:10 < daveb> CarolineGPA-2260: that is only on restart when everyone
> > updates at the same tme. it'll be the same
> > 14:10 < daveb> when alot of people
> > 14:10 < CarolineGPA-2260> right
> > 14:10 < daveb> in the same calss for example
> > 14:11 < daveb> CarolineGPA-2260: two people in turtle art
> > 14:11 < daveb> 0%
> > 14:12 < CarolineGPA-2260> gpa 2 joining
> > 14:12 < daveb> i stopped it and started a new one
> > 14:12 < CarolineGPA-2260> lets strat with chat
> > 14:13 < CarolineGPA-2260> ok I'm with you n0w
> > 14:13 < daveb> ok then
> > 14:13 < CarolineGPA-2260> GPA2 joined
> > 14:13 < CarolineGPA-2260> anything on the CPU?
> > 14:13 < daveb> nope
> > 14:13 < CarolineGPA-2260> ok I'll join some others
> > 14:14 -!- blendmaster1024 (n=blend...@75-169-206-152.slkc.qwest.net) has
> > quit: "gonna JB my iphone now"
> > 14:14 < CarolineGPA-2260> hmm only GPA2 joined jabber after restart :(
> > 14:14 < CarolineGPA-2260> i wonder what is going on with that.
> > 14:14 < daveb> yeah it might take a few more mins to get telepathy to
> reset
> > 14:14 < CarolineGPA-2260> ack I have to leave the buidling they are
> locking
> > it
> > 14:15 < CarolineGPA-2260> more tomorrow!
> > 14:15 < CarolineGPA-2260> bye
> >
> >
> > _______________________________________________
> > Sugar-devel mailing list
> > sugar-de...@lists.sugarlabs.org
> > http://lists.sugarlabs.org/listinfo/sugar-devel
> >
> >
>
>
>
> --
> martin.langh...@gmail.com
> mar...@laptop.org -- School Server Architect
> - ask interesting questions
> - don't get distracted with shiny stuff - working code first
> - http://wiki.laptop.org/go/User:Martinlanghoff
>
--
Caroline Meeks
Solution Grove
carol...@solutiongrove.com
617-500-3488 - Office
505-213-3268 - Fax
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