What are the urls to the demo servers?
On Sat, 2020-10-24 at 13:19 +0700, Maxim Solodovnik wrote:
> Hello Denis,
>
>
>
> On Sat, 24 Oct 2020 at 12:01, Denis Noctor <[email protected]>
> wrote:
> > Hi there Maxim... when a new build is made... is this automatically
> > replicated on the OM demo servers?
>
> yepboth servers were just updated :)
> > If this is the case, I’d be happy to test it out once my class is
> > over tomorrow afternoon, test it out and give some feedback. Last
> > time I had checked there was a #116 build since #115... either way,
> > if I needed... to open up a new AWS instance, I am happy to oblige.
> > On a separate note @Ali Alhaidary ([email protected])...
> > given the nature of your website... I would assume that the current
> > limitation(s) regarding the number of users per room would have
> > been identified at an earlier stage... your regular queries are
> > intriguing but ... if you do work out a solution... rather than
> > piecing everything on a step by step basis... I also think we would
> > all benefit as to what your overall ideas / interests might be so
> > we can all contribute. I look forward to hearing more on this.
>
> this is the paragraph i don't get :(((this last fix was based on
> observation: 7 users can't work in one room, but can in 2 roomsthis
> gave me a hinthopefully in builds #115+ this will be improved
>
> > Talk soon, Denis.
> >
> > Sent from my iPhone
> > On Oct 23, 2020, at 4:55 AM, Maxim Solodovnik <[email protected]
> > > wrote:
> >
> > > OK,
> > > please test build #115+ from here
> > > https://ci-builds.apache.org/job/OpenMeetings/job/openmeetings/
> > >
> > > I would like to confirm if audio/video streams in the room are
> > > more stable :)
> > >
> > > Please NOTE configuration has been changed
> > > most valuable configurable parameters are now
> > > in ./webapps/openmeetings/WEB-INF/classes/openmeetings.properties
> > > :)
> > > On Fri, 23 Oct 2020 at 13:50, Denis Noctor <[email protected]
> > > > wrote:
> > > > Hi there Maxim,
> > > >
> > > > I know you've mentioned that you are working on a few
> > > > alternatives since this email but I thought it best to get back
> > > > in touch.
> > > >
> > > > As you will see from the attached screenshot, I mustered up a
> > > > few computers (equally spread over 2 wifi networks in my
> > > > home... in different parts to reduce sound feedback etc. as I
> > > > do not have enough headsets). A few points to take into
> > > > consideration... some of these computers are older than
> > > > others... varying in RAM and CPU... but ALL were using the
> > > > latest version of Chrome. This is what I noticed:
> > > >
> > > > While you can see from the screenshot, there are 7 users in a
> > > > room (6 of which using 120x90 screen res and 1 using 320x240 -
> > > > audio and vid channels open)... there had been some issues. I
> > > > let the room open for about 40 mins but some video pods
> > > > "dropped" from some computers... with no indication as to
> > > > whether users were still active or not. Sometimes I had to
> > > > "reconnect" video and audio on others. Some computers showed
> > > > all 7 connections... while others showed 3... but AFTER I
> > > > added an 8th user (via an Amazon Fire tablet) "Video / Audio"
> > > > pods began to drop from a lot of the computers... showing only
> > > > 3-4 videos pods... and disconnecting users... and sometimes
> > > > being unable to reconnect... or refresh their screen (on one
> > > > computer... Chrome became unresponsive).
> > > >
> > > > When I added the "8th user" to the group... sound quality
> > > > dropped... with a very "scratchy" interference noise for all
> > > > users.
> > > >
> > > > Things were much more stable with 5 users in a room.
> > > >
> > > > Of course, as you can imagine... this is a "one room" scenario.
> > > >
> > > > While I have mentioned that I was using older to newer
> > > > computers and tablets (based on what is available to me)... all
> > > > of them were able to perform okay in Microsoft Teams and Zoom
> > > > scenarios (tested)... but obviously with varying degrees of
> > > > performance due to speed, cpu, ram etc.
> > > >
> > > > This seems to be a major issue and I am happy to test
> > > > everything out on the OM demo sites and give feedback over the
> > > > next few days if you would like. My next question would be...
> > > > if that you had 2 similar rooms / classes open under the same
> > > > circumstances... would the overall performance be even worse?
> > > >
> > > > I have tested this on a single AWS server, Ubuntu 18.04, 8 gigs
> > > > ram server etc (OM 5 M4... yes, I know, I know... will upgrade
> > > > soon... but assume this issue has crossed over to
> > > > other versions - I will retest on the OM demos online.)
> > > >
> > > > Hope some of this feedback helps.
> > > >
> > > >
> > > >
> > > >
> > > > Virus-free. www.avg.com
> > > >
> > > >
> > > >
> > > > On Thu, Oct 22, 2020 at 7:08 AM Maxim Solodovnik <
> > > > [email protected]> wrote:
> > > > > Hello Denis,
> > > > > please let me know if 10 users in the room will be OK
> > > > > we need to change the way cluster works in case current
> > > > > configuration is not stable/powerful enough
> > > > > On Thu, 22 Oct 2020 at 13:33, Denis Noctor <
> > > > > [email protected]> wrote:
> > > > > > Actually... this is something that had crossed my mind
> > > > > > recently. Previously, I’ve had on average 5 users per
> > > > > > group... but on occasion if there more than 5 users (in and
> > > > > > around 7-10) some users... some would intentionally drop
> > > > > > drop their cam... and sometimes mic... (I thought it might
> > > > > > have been due to bandwidth issues on their side)... but
> > > > > > I’ve got my own kids taking online classes via their
> > > > > > schools... whereby there are a min of 20 attending a class
> > > > > > and so on (different platforms etc.)
> > > > > >
> > > > > >
> > > > > >
> > > > > > I have about a combination of 5 to 6 computers at home due
> > > > > > to home office / covid restrictions etc. and am happy to
> > > > > > log in to either the OM demo sites or others to try
> > > > > > replicate this scenario. (and my own, of course).
> > > > > >
> > > > > >
> > > > > >
> > > > > > Yep, I’ve been reading up on WebRTC and Kurento regarding
> > > > > > connectivity limitations regarding audio and video... this
> > > > > > has been covered a lot recently in previous posts in this
> > > > > > forum... and from memory it is somewhere between 200-300
> > > > > > connections... (per server? / instance?)
> > > > > >
> > > > > >
> > > > > >
> > > > > > For example... if you have 5 users in a room (using audio
> > > > > > and video) this will result in 5 (users) x 5 audio
> > > > > > connections x 5 video connections... giving “125”
> > > > > > connections... but if you have 7 users in a room receiving
> > > > > > and experiencing audio and vid... that is 7x7x7= 343
> > > > > > connections... which obviously exceeds the connections as
> > > > > > per previous posts.
> > > > > >
> > > > > >
> > > > > >
> > > > > > I have had a scenario whereby 3 classes were held at the
> > > > > > same time on the same AWS instance... and nobody has
> > > > > > reported a problem (yet... or they unknowingly downplayed
> > > > > > it due to internet bandwidth problems etc.)... but the max
> > > > > > number of students per room has been 4-5....
> > > > > >
> > > > > >
> > > > > >
> > > > > > I am happy to test this more with others, if you are up for
> > > > > > it and am watching this carefully.
> > > > > >
> > > > > >
> > > > > >
> > > > > > I have a scheduled meeting with 10 participants next week
> > > > > > and am now nervous... and curious to see how it works out.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Talk soon.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Denis
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > Sent from my iPhone
> > > > > >
> > > > > >
> > > > > >
> > > > > > > On Oct 21, 2020, at 7:57 PM, dww <[email protected]>
> > > > > > wrote:
> > > > > >
> > > > > > >
> > > > > >
> > > > > > > Does anyone have an idea why the client browser seems to
> > > > > > limited to 5
> > > > > >
> > > > > > > video pods when each user connects with both video and
> > > > > > microphone.
> > > > > >
> > > > > > >
> > > > > >
> > > > > > > It seems to definitely max out the CPU(s) on the client
> > > > > > computer. How
> > > > > >
> > > > > > > do other applications like Zoom or Microsoft Teams get
> > > > > > around this
> > > > > >
> > > > > > > issue. Do they throttle back the streaming of the video
> > > > > > pods or views
> > > > > >
> > > > > > > of many or most of the pods and do it in some kind of
> > > > > > round-robin
> > > > > >
> > > > > > > update?
> > > > > >
> > > > > > >
> > > > > >
> > > > > > > Am I just doing something wrong.
> > > > > >
> > > > > > >
> > > > > >
> > > > > > > Any response would be appreciated. I would like to start
> > > > > > uses OM for
> > > > > >
> > > > > > > meetings next month.
> > > > > >
> > > > > > >
> > > > > >
> > > > > > > Thanks,
> > > > > >
> > > > > > > Dennis
> > > > > >
> > > > > > >
> > > > > >
> > > > > > >
> > > > > >
> > > > > > >> On Sun, 2020-10-18 at 17:40 -0400, dww wrote:
> > > > > >
> > > > > > >> When creating 3 guests on each of 2 other laptops that I
> > > > > > run into the
> > > > > >
> > > > > > >> same issues,so it seems that the main limitation is the
> > > > > > number of
> > > > > >
> > > > > > >> video/audio pods within a client. Is there anyway to get
> > > > > > around that
> > > > > >
> > > > > > >> as
> > > > > >
> > > > > > >> it implies that one annot have more than 4 or 5 guests
> > > > > > with both
> > > > > >
> > > > > > >> video
> > > > > >
> > > > > > >> and audio?
> > > > > >
> > > > > > >>
> > > > > >
> > > > > > >> Dennis
> > > > > >
> > > > > > >>
> > > > > >
> > > > > > >>
> > > > > >
> > > > > > >>
> > > > > >
> > > > > > >>> On Sun, 2020-10-18 at 13:00 -0400, dww wrote:
> > > > > >
> > > > > > >>> Yes I get the same result, however, this does not
> > > > > > appear to be a
> > > > > >
> > > > > > >>> valid
> > > > > >
> > > > > > >>> stress test of kms. This stress tests a client machine
> > > > > > with
> > > > > >
> > > > > > >>> multiple
> > > > > >
> > > > > > >>> tabs or browser windows each with connections and
> > > > > > determines that
> > > > > >
> > > > > > >>> it
> > > > > >
> > > > > > >>> is
> > > > > >
> > > > > > >>> CPU bound.
> > > > > >
> > > > > > >>>
> > > > > >
> > > > > > >>> It seems the only way to stress test kms is to do this
> > > > > > with
> > > > > >
> > > > > > >>> multiple
> > > > > >
> > > > > > >>> client machines. I have 3 laptops here and a couple of
> > > > > > smart phones
> > > > > >
> > > > > > >>> so
> > > > > >
> > > > > > >>> I will try distributing the client windows among all of
> > > > > > them.
> > > > > >
> > > > > > >>>
> > > > > >
> > > > > > >>> Dennis
> > > > > >
> > > > > > >>>
> > > > > >
> > > > > > >>>> On Sun, 2020-10-18 at 10:56 +0700, Maxim Solodovnik
> > > > > > wrote:
> > > > > >
> > > > > > >>>> I'm on Ubuntu 20.04 desktop? so i can use UI
> > > > > >
> > > > > > >>>> if you are using server I would recommend `htop`
> > > > > >
> > > > > > >>>>
> > > > > >
> > > > > > >>>>> On Sun, 18 Oct 2020 at 10:54, dww <
> > > > > > [email protected]> wrote:
> > > > > >
> > > > > > >>>>> May I ask for your linux command line that got the
> > > > > > CPU
> > > > > >
> > > > > > >>>>> percentage
> > > > > >
> > > > > > >>>>> for all cores?
> > > > > >
> > > > > > >>>>> thanks,
> > > > > >
> > > > > > >>>>> Dennis
> > > > > >
> > > > > > >>>>>
> > > > > >
> > > > > > >>>>>
> > > > > >
> > > > > > >>>>>
> > > > > >
> > > > > > >>>>>> On Sat, 2020-10-17 at 12:59 +0700, Maxim Solodovnik
> > > > > > wrote:
> > > > > >
> > > > > > >>>>>> Hello,
> > > > > >
> > > > > > >>>>>>
> > > > > >
> > > > > > >>>>>> i just have tried the following script
> > > > > >
> > > > > > >>>>>> started as `./run10.sh 5`
> > > > > >
> > > > > > >>>>>>
> > > > > >
> > > > > > >>>>>> everything seems to work, but my CPU was 800% busy
> > > > > > (all cores
> > > > > >
> > > > > > >>>>>> were 100% busy)
> > > > > >
> > > > > > >>>>>>
> > > > > >
> > > > > > >>>>>> without `--use-fake-device-for-media-stream`
> > > > > > parameter I had
> > > > > >
> > > > > > >>>>>> lots
> > > > > >
> > > > > > >>>>>> of permission errors due to camera was "captured" by
> > > > > > first
> > > > > >
> > > > > > >>>>>> browser
> > > > > >
> > > > > > >>>>>> other have reported "Camera busy" error
> > > > > >
> > > > > > >>>>>>
> > > > > >
> > > > > > >>>>>>
> > > > > >
> > > > > > >>>>>> _HASH_HERE_ - should be replaced with real hash (I
> > > > > > have
> > > > > >
> > > > > > >>>>>> created
> > > > > >
> > > > > > >>>>>> endless invitation hash to the private conference
> > > > > > room)
> > > > > >
> > > > > > >>>>>>
> > > > > >
> > > > > > >>>>>> the script
> > > > > >
> > > > > > >>>>>> ===============================================
> > > > > >
> > > > > > >>>>>> #!/bin/bash
> > > > > >
> > > > > > >>>>>>
> > > > > >
> > > > > > >>>>>> i=$1
> > > > > >
> > > > > > >>>>>>
> > > > > >
> > > > > > >>>>>> if [ -z "${i}" ]; then
> > > > > >
> > > > > > >>>>>> i=30
> > > > > >
> > > > > > >>>>>> fi
> > > > > >
> > > > > > >>>>>> let "i += 0"
> > > > > >
> > > > > > >>>>>>
> > > > > >
> > > > > > >>>>>> rm -rf /tmp/delme*
> > > > > >
> > > > > > >>>>>>
> > > > > >
> > > > > > >>>>>> while ((i--)); do
> > > > > >
> > > > > > >>>>>> #echo "${i}"
> > > > > >
> > > > > > >>>>>> mkdir /tmp/delme${i}
> > > > > >
> > > > > > >>>>>>
> > > > > >
> > > > > > >>>>>> #local conference
> > > > > >
> > > > > > >>>>>> chromium-browser --user-data-dir=/tmp/delme${i} --
> > > > > > disable-
> > > > > >
> > > > > > >>>>>> infobars --no-default-browser-check --allow-
> > > > > > insecure-
> > > > > >
> > > > > > >>>>>> localhost
> > > > > >
> > > > > > >>>>>> --
> > > > > >
> > > > > > >>>>>> use-fake-device-for-media-stream '
> > > > > >
> > > > > > >>>>>>
> > > > > > https://localhost:5443/openmeetings/hash?invitation=_HASH_HERE_&language=1'
> > > > > >
> > > > > > >>>>>> &
> > > > > >
> > > > > > >>>>>> done
> > > > > >
> > > > > > >>>>>>
> > > > > >
> > > > > > >>>>>> On Fri, 16 Oct 2020 at 09:10, dww <
> > > > > > [email protected]>
> > > > > >
> > > > > > >>>>>> wrote:
> > > > > >
> > > > > > >>>>>>> I mentioned earlier that I wanted to experiment
> > > > > > with
> > > > > >
> > > > > > >>>>>>> clustering
> > > > > >
> > > > > > >>>>>>> using
> > > > > >
> > > > > > >>>>>>> docker swarm for the kms service.
> > > > > >
> > > > > > >>>>>>>
> > > > > >
> > > > > > >>>>>>> I wanted to establish a base line using one
> > > > > > container for
> > > > > >
> > > > > > >>>>>>> kms.
> > > > > >
> > > > > > >>>>>>> All the
> > > > > >
> > > > > > >>>>>>> components are in one Linode with 8 GB of RAM.
> > > > > >
> > > > > > >>>>>>>
> > > > > >
> > > > > > >>>>>>> For this experiment. I start entering the video and
> > > > > >
> > > > > > >>>>>>> whiteboard
> > > > > >
> > > > > > >>>>>>> room
> > > > > >
> > > > > > >>>>>>> from my admin login from Firefox on one laptop. I
> > > > > > allowed
> > > > > >
> > > > > > >>>>>>> both
> > > > > >
> > > > > > >>>>>>> video
> > > > > >
> > > > > > >>>>>>> and microphone and the video pod was the lowest
> > > > > > resolution.
> > > > > >
> > > > > > >>>>>>> I
> > > > > >
> > > > > > >>>>>>> generate
> > > > > >
> > > > > > >>>>>>> a guest url to the room.
> > > > > >
> > > > > > >>>>>>>
> > > > > >
> > > > > > >>>>>>> On another laptop also on the same connection to
> > > > > > the
> > > > > >
> > > > > > >>>>>>> internet
> > > > > >
> > > > > > >>>>>>> I
> > > > > >
> > > > > > >>>>>>> enter
> > > > > >
> > > > > > >>>>>>> the room on firefox and allow both video ( lowest
> > > > > >
> > > > > > >>>>>>> resolution)
> > > > > >
> > > > > > >>>>>>> and
> > > > > >
> > > > > > >>>>>>> microphone on a new tab each time.
> > > > > >
> > > > > > >>>>>>>
> > > > > >
> > > > > > >>>>>>> Up to 4 guest clients load quickly and the pods are
> > > > > > created
> > > > > >
> > > > > > >>>>>>> almost
> > > > > >
> > > > > > >>>>>>> immediately on all 5 tabs. On the first attempt on
> > > > > > the 5th
> > > > > >
> > > > > > >>>>>>> guest the
> > > > > >
> > > > > > >>>>>>> pod for this guest on the admin laptop took a
> > > > > > couple of
> > > > > >
> > > > > > >>>>>>> minutes
> > > > > >
> > > > > > >>>>>>> to load
> > > > > >
> > > > > > >>>>>>> the video. On the 5th guest tab, the pods for guest
> > > > > > 1, 2
> > > > > >
> > > > > > >>>>>>> and
> > > > > >
> > > > > > >>>>>>> 4
> > > > > >
> > > > > > >>>>>>> would
> > > > > >
> > > > > > >>>>>>> not refresh( pod frames present but no video.
> > > > > >
> > > > > > >>>>>>>
> > > > > >
> > > > > > >>>>>>> RAM and CPU usage was not significant on the
> > > > > > server.
> > > > > >
> > > > > > >>>>>>>
> > > > > >
> > > > > > >>>>>>> I closed the tabs for all the guests and redid the
> > > > > >
> > > > > > >>>>>>> experiment,
> > > > > >
> > > > > > >>>>>>> The
> > > > > >
> > > > > > >>>>>>> first 4 guests again loaded quickly without any
> > > > > > issues. The
> > > > > >
> > > > > > >>>>>>> 5th
> > > > > >
> > > > > > >>>>>>> guest
> > > > > >
> > > > > > >>>>>>> loaded to completion but took about 40 seconds for
> > > > > > all 6
> > > > > >
> > > > > > >>>>>>> tabs
> > > > > >
> > > > > > >>>>>>> to
> > > > > >
> > > > > > >>>>>>> complete. On the 6th guest there were multiple
> > > > > > connection
> > > > > >
> > > > > > >>>>>>> drops
> > > > > >
> > > > > > >>>>>>> and
> > > > > >
> > > > > > >>>>>>> retries and the tabs were reduced to about 3 pods
> > > > > > working,
> > > > > >
> > > > > > >>>>>>> the
> > > > > >
> > > > > > >>>>>>> others
> > > > > >
> > > > > > >>>>>>> gone, this was on all tabs.
> > > > > >
> > > > > > >>>>>>>
> > > > > >
> > > > > > >>>>>>> So based on this it seems that up to 5 users using
> > > > > > both
> > > > > >
> > > > > > >>>>>>> video
> > > > > >
> > > > > > >>>>>>> and
> > > > > >
> > > > > > >>>>>>> microphone seem to work fine.
> > > > > >
> > > > > > >>>>>>>
> > > > > >
> > > > > > >>>>>>> Does this agree with anyone else's experience? I
> > > > > > had from
> > > > > >
> > > > > > >>>>>>> other
> > > > > >
> > > > > > >>>>>>> posts
> > > > > >
> > > > > > >>>>>>> that we can expect 14-15 users per kms instance.
> > > > > > Does both
> > > > > >
> > > > > > >>>>>>> laptop on
> > > > > >
> > > > > > >>>>>>> the same network have any influence on this?
> > > > > >
> > > > > > >>>>>>>
> > > > > >
> > > > > > >>>>>>> I will try a swarm next after I gets some feedback.
> > > > > >
> > > > > > >>>>>>>
> > > > > >
> > > > > > >>>>>>>
> > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > > > --
> > > > > Best regards,
> > > > > Maxim
> > > >
> > > >
> > > >
> > > >
> > > > Virus-free. www.avg.com
> > > >
> > > >
> > > >
> > >
> > > --
> > > Best regards,
> > > Maxim
>
>
