I didn’t as I was testing on the open meetings demo next website. Probably in the logs if they have not been cleared. If it is possible to view that info I could schedule and conduct another test.
Sent from my iPhone > On Nov 25, 2020, at 11:10 AM, dww <dwort...@mykolab.com> wrote: > > Denis, > > Did you check the CPU usage on the server and on at least one of the client > devices when you got to 8 devices.? > > Thanks, > Dennis > >> On Mon, 2020-11-23 at 16:56 -0600, Denis Noctor wrote: >> Comment below.... >> >>> On Mon, Nov 23, 2020 at 4:13 PM dww <dwort...@mykolab.com> wrote: >>> 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). >>> >> >> >> Tablets (Android based with Chrome) - all video pods were visible, with the >> exception of the problems when I exceed 8. I did not test iOS devices as >> mine cannot be update to the latest iOS version / Safari. >> >> However, one of my students (Android phone) (who is in a small group (5)) >> has been able to view everyone's cam with no problem... though I would >> really only recommend a smartphone as a last resort. >> >> Picture below: >> <tablet_view (2).JPG> >> >> >> >> >>> >>> 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" 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 <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 >>>>>> >>>>> >>>>>
