What would be the actual difference between this versus 3 existing KMS
servers each in its own docker container or other clustering
mechanism?Dennis
On Tue, 2020-11-24 at 08:52 +0000, Rohrbach, Gerald wrote:
> Denis, Maxim,
>
> yes in BBB ist´written that there are 3 Kurento Media Servers.
>
> But reading details, it´s not clustered or load balanced.
> Each server is dedicated for an media type.
> I do not know, how this can be established in OM.
>
> But maybe this is not that complex. However the traffic needs to be
> redirected
> somehow, or for each media type a own port is needed.
>
> Probably a clustering is much more complex. NGINX is good for
> balancing maybe,
> I think also for udp traffic. But clustering and balancing can only
> work for one room, so I guess
> It won´t help if one room has much users. The setup will be very
> complex, error searching really difficult.
>
>
> Gerald
>
>
>
>
>
>
> Von: Denis Noctor [mailto:[email protected]]
>
>
> Gesendet: Montag, 23. November 2020 22:44
>
> An: [email protected]
>
> Betreff: Re: Users per room client browser scalability
>
>
> Thanks for that Maxim.
>
>
>
> I came across this...
>
>
>
> https://docs.bigbluebutton.org/2.2/customize.html
>
>
>
>
> (scroll down to "Run three parallel Kurento media servers").
>
>
>
> This appears to suggest that 3 KMS (audio, video and screesharing)
> processes on one server. Maybe this could bring us one step further?
>
>
>
> All the best.
>
>
>
>
>
> Denis
>
>
>
>
>
>
>
>
>
> On Mon, Nov 23, 2020 at 9:31 AM Maxim Solodovnik <
> [email protected]> wrote:
>
> > I just have fixed "refresh" button
> >
> > So audio/video stream can be "refreshed" without page reload
> >
> >
> > both user-list and video-pod buttons are works according to my
> > tests
> >
> >
> >
> >
> >
> > On Mon, 23 Nov 2020 at 17:08, Peter Dähn <[email protected]> wrote:
> >
> > > Hi there,
> > >
> > >
> > >
> > >
> > > this might be because BBB uses 3+ KMS servers clustered
> > >
> > >
> > > (I was unable to find direct link regarding it ...)
> > >
> > >
> > >
> > > as far as I know, they use freeswitch for audio and kms just for
> > > the video streams...
> > >
> > >
> > >
> > > BR Peter
> > >
> > >
> > >
> > >
> > >
> > > Am 23.11.20 um 10:53 schrieb Denis Noctor:
> > >
> > > > Thanks a lot Maxim. I am happy to help in anyway for future
> > > > tests.
> > > >
> > > > Sent from my iPhone
> > > >
> > > >
> > > >
> > > >
> > > > On Nov 23, 2020, at 3:43 AM, Maxim Solodovnik <
> > > > [email protected]> wrote:
> > > >
> > > > >
> > > > >
> > > > > Thanks for very detailed report Denis
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > couple of thoughts inline:
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > On Mon, 23 Nov 2020 at 13:59, Denis Noctor <
> > > > > [email protected]> wrote:
> > > > >
> > > > > > Hi there everyone,
> > > > > >
> > > > > >
> > > > > >
> > > > > > My sincerest apologies for only getting back to you now. As
> > > > > > I had mentioned in my previous email that I was going
> > > > > > through a personal issue and it took longer than I had
> > > > > > anticipated to get back in touch.
> > > > > >
> > > > > >
> > > > > >
> > > > > > However, as mentioned before, I have been keeping up to
> > > > > > date by reading all the emails in the forum over the last
> > > > > > few weeks... and some direct emails also.
> > > > > >
> > > > > >
> > > > > >
> > > > > > I also apologize for the length of the email... so maybe
> > > > > > you should grab a coffee.
> > > > > >
> > > > > >
> > > > > >
> > > > > > As mentioned in my previous email, I set up 10 devices to
> > > > > > connect to Room 7 on the OM demo server - all of which
> > > > > > where running the latest version of Chrome. 3 machines
> > > > > > running Windows 10, 1 running Windows 8, 4 running Windows
> > > > > > 7, 2 Amazon Fires (set up to run
> > > > > > Chrome) with varying degrees of ram (2, 4, 8 and 12 gigs)
> > > > > >
> > > > > >
> > > > > >
> > > > > > The results are as follows:
> > > > > >
> > > > > > After logging in around 8.22pm (Mexico time), 12th November
> > > > > > (OpenMeetings - Next, 5.1.0-SNAPSHOT, Revision: db7be4b,
> > > > > > Build date: 2020-11-09T14:57:23Z , I gradually added other
> > > > > > devices to the room. I got to 8. There was a little but of
> > > > > > a time lapse... in the
> > > > > > sense that I would move from one computer to another...
> > > > > > and could still see myself in one feed after I had move to
> > > > > > another. It is important to note that 2 of the computers
> > > > > > (older HP's) have a slight webcam issue... (I think there
> > > > > > is a fauly cable... sometimes
> > > > > > works sometimes doesn't - but audio/mic was working fine).
> > > > > >
> > > > > >
> > > > > >
> > > > > > When I added 2 the last two devices, things started to
> > > > > > break down. The audio quality was clearly reduced... there
> > > > > > was a lot of crackling sounds... and some of the users
> > > > > > video pods disappeared from some of the devices´screens....
> > > > > > or "empty" video pods filled
> > > > > > some screens... on some devices.... but were viewable on
> > > > > > others. Some users appeared to be disconnected, though they
> > > > > > could continue to view the whiteboards... but had their
> > > > > > audio and video disconnected (icons in orange)... when they
> > > > > > tried to reconnect... they
> > > > > > couldn't... they clicked on the audio / vid icons but with
> > > > > > no effect... refreshing the screen sometimes seemed to
> > > > > > correct this.
> > > > > >
> > > > > >
> > > > > >
> > > > > > While 8 users seemed to be able to connect okay... there
> > > > > > was a little bit of a time delay. As you can understand, I
> > > > > > don't have headphones and microphones for each and every
> > > > > > computer... so I spaced them around my house... when I
> > > > > > talked... I could hear my voice
> > > > > > being repeated... (I am not referring to echo
> > > > > > feedback).... there was a slight time delay by a couple of
> > > > > > seconds on some of the devices... moving from device to
> > > > > > device. However, with just 5 users in a room, this was not
> > > > > > really an issue.
> > > > > >
> > > > > >
> > > > > >
> > > > > > From time to time users experienced other users being
> > > > > > disconnected or whereby they could see the "empty video
> > > > > > pod" with the green border flashing on and off as someone
> > > > > > spoke.... but again no audio or video being received....
> > > > > > but it was possible to see the same
> > > > > > users on other devices.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Users would try to "refresh" the page... again only having
> > > > > > access to 4 - 5 users on the page.... and not necessarily
> > > > > > seeing the moderator. I finished testing around 9.50pm.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Some additional observations:
> > > > > >
> > > > > >
> > > > > >
> > > > > > Based on some of the emails over the last few weeks. It
> > > > > > appears to be that one OM instance can only deal with 3
> > > > > > simultaneous rooms with 5 users approx in each room (using
> > > > > > audio and video)... and based on the above maybe a little
> > > > > > more, but at a stretch. This
> > > > > > appears to boil down to limitations due to number Kurento
> > > > > > / WebRTC connections.... some of you have mention somewhere
> > > > > > in the range of 200 - 300 connections.
> > > > > >
> > > > > >
> > > > > >
> > > > > > As a result I took a look at a few sites regarding
> > > > > > BigBlueButton (BBB), as it also uses Kurento and WebRTC to
> > > > > > get a general idea as to how many users can be in a room
> > > > > > (with camera and audio). However, a lot of digging had to
> > > > > > be done as many of the numbers that
> > > > > > are used are about how many participants can be in a room
> > > > > > (without cam and mic) with a moderator (using cam and mic).
> > > > > > Now I apologize for bringing up BBB in conversation, as I
> > > > > > am not endorsing the platform....reminding me of Harry
> > > > > > Potter, (Voldemort) "He who
> > > > > > shall not be named" :)
> > > > > >
> > > > > >
> > > > > >
> > > > > > However, it might be worth investigating for ideas on how
> > > > > > to increase the number of cams / mics in an OM room.
> > > > > >
> > > > > >
> > > > > >
> > > > > > You can view this information here:
> > > > > >
> > > > > > https://support.blindsidenetworks.com/hc/en-us/articles/360042272991-How-many-users-can-I-have-in-a-BigBlueButton-session-at-one-time-
> > > > > >
> > > > > >
> > > > > >
> > > > > > Similarly, if you look at the following link it suggests
> > > > > > that the more number of concurrent users... the number of
> > > > > > rooms will be less (but again not taking into consideration
> > > > > > cams and mics) :
> > > > > >
> > > > > > https://docs.bigbluebutton.org/support/faq.html#how-many-simultaneous-users-can-bigbluebutton-support
> > > > > >
> > > > > >
> > > > > >
> > > > > > However, regarding the limited number of users (with cam
> > > > > > and mic), BBB seems to have got arround this by having a
> > > > > > window of 5 cams that can be scrolled left or right. It
> > > > > > appears moderators can still view up to 25 cams etc.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Take a look at this:
> > > > > > https://support.blindsidenetworks.com/hc/en-us/articles/360049799851-September-16-2020-Webcam-viewing-and-recording-updates
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > this might be because BBB uses 3+ KMS servers clustered
> > > > >
> > > > >
> > > > > (I was unable to find direct link regarding it ...)
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > I guess we might contact BBB devs and ask for the help in KMS
> > > > > configuration/clustering
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > > _________________________
> > > > > >
> > > > > >
> > > > > >
> > > > > > OM Demo Next Server Specs:
> > > > > >
> > > > > >
> > > > > >
> > > > > > @Maxim, is it possible to share the specs of the demo
> > > > > > server, ram, cpu, etc, so that we can get a general idea as
> > > > > > to what to benchmark against.
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > I did share the specs before
> > > > >
> > > > >
> > > > > here they are
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > dedicated server with
> > > > >
> > > > >
> > > > > CPU: 8x Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz
> > > > >
> > > > >
> > > > > RAM: 24GB
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > It hosting
> > > > >
> > > > >
> > > > > om-demo: 8GB for java
> > > > >
> > > > >
> > > > > om-next: 4GB for java
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > These instances are using
> > > > >
> > > > >
> > > > > - same KMS
> > > > >
> > > > >
> > > > > - same Coturn
> > > > >
> > > > >
> > > > > - Separate databases at same MySql
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > I can increase java memory for demo-next if you are planning
> > > > > to do tests one more time
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > >
> > > > > >
> > > > > > At the moment I am using AWS, t3a.large (8 gigs Ram , 2
> > > > > > vCPUS). However, I am under the impression that even if I
> > > > > > upgrade my AWS server... I am not really going to see any
> > > > > > major improvements given the fact that I am still limited
> > > > > > to the number of users (with
> > > > > > cam and mic) per room.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Before this whole covid situation, my school had 10
> > > > > > classrooms, class size average 10. I would like to be able
> > > > > > to have a similar virtual set up... but based on all the
> > > > > > info above I would need 3 - 4 instances (using clustering,
> > > > > > which I have never done before)
> > > > > > - but will still have a problem having 11 users (10
> > > > > > students / 1 moderator) in a room.
> > > > > >
> > > > > >
> > > > > >
> > > > > > And while I know the following question (as an alternative)
> > > > > > might be considered ridiculous - can a multiple number of
> > > > > > OM installations (with multiple KMS etc) be conducted in
> > > > > > one server - which more ram, cpu power etc?
> > > > > >
> > > > > >
> > > > > >
> > > > > > It would be great if anyone out there has a successful
> > > > > > clustering model that they could share - even to test
> > > > > > across 2 instances. At present, I am using Ubuntu 18.04 on
> > > > > > AWS as described above.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Either way it seems the main obstacle at the moment seems
> > > > > > to be how Kurento and WebRTC can be set up to overcome
> > > > > > these limitations
> > > > > >
> > > > > >
> > > > > >
> > > > > > Apologies once again for the length of this email and for
> > > > > > taking so long to get back in touch.
> > > > > >
> > > > > >
> > > > > >
> > > > > > (I've added a few screenshots regarding my test below (one
> > > > > > computer's time is 2 hours behind for some strange reason)
> > > > > > :))
> > > > > >
> > > > > >
> > > > > >
> > > > > > All the best,
> > > > > >
> > > > > >
> > > > > >
> > > > > > Denis.
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > Virus-free.
> > > > > > www.avg.com
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > On Sat, Nov 14, 2020 at 12:26 AM Maxim
> > > > > > Solodovnik <[email protected]> wrote:
> > > > > >
> > > > > > >
> > > > > > >
> > > > > > > On Fri, 13 Nov 2020 at 14:24, Denis
> > > > > > > Noctor <[email protected]> wrote:
> > > > > > >
> > > > > > > > Hi there Maxim... I did a test with
> > > > > > > > 8 computers and 2 tablets last night (spread across 2
> > > > > > > > WiFis)... please don’t delete the logs on the OM demo
> > > > > > > > server (next)...
> > > > > > > >
> > > > > > >
> > > > > > > I just backup the logs
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > > I will come back to you all with some
> > > > > > > > feedback and pics later tomorrow (if that’s okay)...
> > > > > > > > however, for reference... I started the process in the
> > > > > > > > public room #7...start time around 8.22pm (12th Nov)
> > > > > > > > (México... 6 hrs behind) and end time 9.50pm... (if you
> > > > > > > > want to check the logs) .... the short
> > > > > > > > version is that 8 users experienced relatively stable
> > > > > > > > performance.
> > > > > > > >
> > > > > > >
> > > > > > > Looking forward to hear the full version
> > > > > > > :))
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > > Will
> > > > > > > > give you a more detailed feedback once I deal with a
> > > > > > > > personal issue. All the best, Denis.
> > > > > > > >
> > > > > > > > Sent from my iPhone
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > On Nov 11, 2020, at 9:09 PM, Maxim Solodovnik <
> > > > > > > > [email protected]> wrote:
> > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Hello All,
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > I'll try to answer in one email :)
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > On Wed, 11 Nov 2020 at 20:32, dww
> > > > > > > > > <[email protected]> wrote:
> > > > > > > > >
> > > > > > > > > > However, Denis, I think your experiment
> > > > > > > > > > with multiple devices would be
> > > > > > > > > >
> > > > > > > > > > valuable as then there is only one browser tab or
> > > > > > > > > > window with the OM
> > > > > > > > > >
> > > > > > > > > > room open as a guest on each device. Perhaps that
> > > > > > > > > > will make a
> > > > > > > > > >
> > > > > > > > > > difference.
> > > > > > > > >
> > > > > > > > > yes, this would be better test (even
> > > > > > > > > if "fake" camera is used)
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > Dennis
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > On Wed, 2020-11-11 at 08:24 -0500, dww wrote:
> > > > > > > > > >
> > > > > > > > > > > Thanks, Denis,
> > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > Back on Oct. 17 Maxim provided the following Bash
> > > > > > > > > > script to be run on
> > > > > > > > > >
> > > > > > > > > > > the machine with a client side browser for the
> > > > > > > > > > psuedo guest users. (
> > > > > > > > > >
> > > > > > > > > > > Use another machine to create the room
> > > > > > > > > > administratively and send
> > > > > > > > > >
> > > > > > > > > > > invitations) This is a far simpler way to stress
> > > > > > > > > > test the client side
> > > > > > > > > >
> > > > > > > > > > > browser.
> > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > Dennis
> > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > 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 Wed, 2020-11-11 at 01:53 -0600, Denis Noctor
> > > > > > > > > > wrote:
> > > > > > > > > >
> > > > > > > > > > > > Hi there everyone, this seems to be the
> > > > > > > > > > “elephant in the room”
> > > > > > > > > >
> > > > > > > > > > > > discussion, while there has been a HUGE amount
> > > > > > > > > > of development and
> > > > > > > > > >
> > > > > > > > > > > > progress in OM since March (thank you so much
> > > > > > > > > > @Maxim) ... there is
> > > > > > > > > >
> > > > > > > > > > > > the whole issue of, for example, the number of
> > > > > > > > > > users per room...
> > > > > > > > > >
> > > > > > > > > > > > which seems to be about 5-6 (and maybe even to
> > > > > > > > > > 7) when pushed to
> > > > > > > > > >
> > > > > > > > > > > > the
> > > > > > > > > >
> > > > > > > > > > > > limit... with both audio and video being
> > > > > > > > > > broadcasted from all
> > > > > > > > > >
> > > > > > > > > > > > users... and, something else.. if there are
> > > > > > > > > > simultaneous
> > > > > > > > > >
> > > > > > > > > > > > classes/sessions being held on the same
> > > > > > > > > > server... will this
> > > > > > > > > >
> > > > > > > > > > > > restrict
> > > > > > > > > >
> > > > > > > > > > > > things even further? Is this an overall
> > > > > > > > > > limitation
> > > > > > > > >
> > > > > > > > > Sebastian did some AWS based testing
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > And, if i'm not mistaken, the server
> > > > > > > > > with 4GB RAM was able to handle at least 3 rooms of
> > > > > > > > > 5 people
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > (5.1.0-SNAPSHOT should behave better
> > > > > > > > > than 5.0.1)
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > to increase the number of rooms you
> > > > > > > > > can use cluster
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > to using a
> > > > > > > > > >
> > > > > > > > > > > > browser
> > > > > > > > > >
> > > > > > > > > > > > based approach... or should we be taking
> > > > > > > > > > approach?
> > > > > > > > >
> > > > > > > > > well,
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > there is "The Limit"
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > KMS can handle only certain amount
> > > > > > > > > of multimedia connections
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > additionally there are other limits:
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > - bandwidth
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > - CPU
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > - RAM
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > - open files (network socket is a
> > > > > > > > > file)
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > "The Limit" is something I'm not sure
> > > > > > > > > how to deal with (yet)
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > It was my intention to test out the OM “demo
> > > > > > > > > > servers” over the last
> > > > > > > > > >
> > > > > > > > > > > > 2
> > > > > > > > > >
> > > > > > > > > > > > weeks but will take today off and try to test
> > > > > > > > > > 10 real device
> > > > > > > > > >
> > > > > > > > > > > > connections... with a combination of desktops,
> > > > > > > > > > laptops, android
> > > > > > > > > >
> > > > > > > > > > > > tablets and maybe even the odd iPhone or two.
> > > > > > > > >
> > > > > > > > > Apple devices has issues with sound
> > > > > > > > > (outgoing)
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > I'm still investigating this one
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > My million dollar question is... prior to
> > > > > > > > > > WebRTC and Kurento... was
> > > > > > > > > >
> > > > > > > > > > > > it possible to have 5-10 users in a room with
> > > > > > > > > > audio and video
> > > > > > > > > >
> > > > > > > > > > > > working
> > > > > > > > > >
> > > > > > > > > > > > seamlessly in previous versions (for example,
> > > > > > > > > > the old “flash” setup
> > > > > > > > > >
> > > > > > > > > > > > (which will be redundant after Christmas...
> > > > > > > > > > Chrome etc
> > > > > > > > > >
> > > > > > > > > > > > notifications)
> > > > > > > > > >
> > > > > > > > > > > > and if so, what has changed?
> > > > > > > > >
> > > > > > > > > Yes this was possible
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > OM_before_5 was based on Red5 media
> > > > > > > > > server
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Unfortunately it's open source version
> > > > > > > > > has no WebRTC support
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > If there is anyone out there that has no
> > > > > > > > > > problem with user numbers
> > > > > > > > > >
> > > > > > > > > > > > (using audio and vid)... exceeding a body of 7-
> > > > > > > > > > 10+, please let us
> > > > > > > > > >
> > > > > > > > > > > > know.
> > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > In the meantime, I’ll give you my feedback on
> > > > > > > > > > my tests.
> > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > I really appreciate everything that has been
> > > > > > > > > > done to date.
> > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > Thanks.
> > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > Sent from my iPhone
> > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > > On Nov 9, 2020, at 4:50 PM, dww <
> > > > > > > > > > [email protected]> wrote:
> > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > > Hello Maxim,
> > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > > A couple of weeks ago there was an email
> > > > > > > > > > thread about the 5 total
> > > > > > > > > >
> > > > > > > > > > > > > users
> > > > > > > > > >
> > > > > > > > > > > > > for one room, each user with video/microphone
> > > > > > > > > > under the
> > > > > > > > > >
> > > > > > > > > > > > > Subject: "docker container clustering
> > > > > > > > > > experiments #1".
> > > > > > > > >
> > > > > > > > > For whatever reason you love to start
> > > > > > > > > new mail threads :))))
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > In this
> > > > > > > > > >
> > > > > > > > > > > > > case
> > > > > > > > > >
> > > > > > > > > > > > > it
> > > > > > > > > >
> > > > > > > > > > > > > appears the bottleneck is the CPU usage on
> > > > > > > > > > the client machine
> > > > > > > > > >
> > > > > > > > > > > > > with
> > > > > > > > > >
> > > > > > > > > > > > > the
> > > > > > > > > >
> > > > > > > > > > > > > browser.
> > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > > In a response to Denis Noctor on a similar
> > > > > > > > > > thread you mentioned
> > > > > > > > > >
> > > > > > > > > > > > > to
> > > > > > > > > >
> > > > > > > > > > > > > try
> > > > > > > > > >
> > > > > > > > > > > > > the following:
> > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > > "please check allowed amount of opened files
> > > > > > > > > > for the user who
> > > > > > > > > >
> > > > > > > > > > > > > starts
> > > > > > > > > >
> > > > > > > > > > > > > OM/KMS/TURN
> > > > > > > > > >
> > > > > > > > > > > > > increasing it might help"
> > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > > Might this help with the issue we discussed?
> > > > > > > > > > Where approximately
> > > > > > > > > >
> > > > > > > > > > > > > do
> > > > > > > > > >
> > > > > > > > > > > > > I
> > > > > > > > > >
> > > > > > > > > > > > > set the allowed amount of opened files?
> > > > > > > > >
> > > > > > > > > KMS seems to drop connections when
> > > > > > > > > there is not enough files
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > (network socket is a file)
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > you can check the limit for current
> > > > > > > > > user using `ulimit -n` (`ulimit -a` to see all
> > > > > > > > > limits)
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > to check limit for `nobody` user `su
> > > > > > > > > nobody --shell /bin/bash --command "ulimit -n"`
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > to increase the limit i'm changing
> > > > > > > > > `/etc/security/limits.conf` file
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > https://github.com/openmeetings/openmeetings-docker/blob/48b72f4d0f38a0fab2021a0a2e4d6693c61c00be/scripts/om_euser.sh#L35
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > (seems to work at Ubuntu)
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > > Also are there any other things that can be
> > > > > > > > > > tried to improve this
> > > > > > > > > >
> > > > > > > > > > > > > scalability? Are there areas in the code that
> > > > > > > > > > can be examined to
> > > > > > > > > >
> > > > > > > > > > > > > investigate how to improve this?
> > > > > > > > >
> > > > > > > > > KMS cluster would be ultimate solution,
> > > > > > > > > I guess
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > > Thanks,
> > > > > > > > > >
> > > > > > > > > > > > > Dennis
> > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > >
> > > > > > > > > --
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Best regards,
> > > > > > > > >
> > > > > > > > > Maxim
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > >
> > > > > > > --
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > Best regards,
> > > > > > >
> > > > > > > Maxim
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > Virus-free.
> > > > > > www.avg.com
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > > > --
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > Best regards,
> > > > >
> > > > > Maxim
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> >
> >
> >
> > --
> >
> >
> >
> >
> > Best regards,
> >
> > Maxim
> >
> >
> >
> >
>
>
>
>
