Can I just replace the contents of /opt/open500 with those from apache- openmeetings-5.1.0-SNAPSHOT.tar.gz and restart or is there anything else I need to do?Dennis
On Fri, 2020-10-23 at 16:55 +0700, Maxim Solodovnik 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 > > > > > > > >
