It seems to me that there are 2 separate stress points. 1. Maximum number of KMS streams (this can be addressed with clustering).2. Maximum number of users with video and audio that can showing live on the client browsers (This may require addressing layout on the browsers). Also when you did your tests were smart phones and tablets allowing fewer users showing on the browser compared to laptops and desktops? Dennis
On Mon, 2020-11-23 at 15:43 -0600, Denis Noctor wrote: > 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 < > solomax...@gmail.com> wrote: > > I just have fixed "refresh" buttonSo 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 <da...@vcrp.de> 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 < > > > > solomax...@gmail.com> > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Thanks for very detailed report Denis > > > > > > > > > > > > > > > > > > > > couple of thoughts inline: > > > > > > > > > > > > > > > > > > > > On Mon, 23 Nov 2020 at > > > > > 13:59, Denis Noctor <denisnoc...@gmail.com> > > > > > 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 < > > > > > > solomax...@gmail.com> > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Fri, 13 Nov > > > > > > > 2020 at 14:24, Denis Noctor < > > > > > > > denisnoc...@gmail.com> > > > > > > > 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 < > > > > > > > > solomax...@gmail.com> > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Hello All, > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > I'll try to > > > > > > > > > answer in one email > > > > > > > > > :) > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On > > > > > > > > > Wed, 11 Nov > > > > > > > > > 2020 at 20:32, dww > > > > > > > > > < > > > > > > > > > dwort...@mykolab.com> > > > > > > > > > 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 > > > > > > > > > > <dwort...@mykolab.com> > > > > > > > > > > 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 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
