Hello Alex, On Tue, 17 Nov 2020 at 23:35, Ninnig, Alexander < alexander.nin...@rechnungshof.rlp.de> wrote:
> Hi Maxim, > > > > „working from home“ means lesser network speed (slower upload usually). > „In office“ means 100 Mbit/s upload and download between the sites > (different cities) and gigabit in our main-site (where I work). > > So, yes, working from home sometimes means a crappy connection. > > But – that’s the thing – OpenMeetings 4 and other videoconference-systems > seem to handle that way better. > > As I wrote: OpenMeetings 4 is useable. > > OpenMeetings 5 lets people (from home) join the meeting and after a few > seconds, they get this „media server got disconnected for user xy“-message. > You need TURN server :))) I guess all your "home users" have wifi routers and "grey" IP addresses, so TURN should help to establish MM connection > It’s not possible to use. > > > > We try to do what we can to improve the connection, maybe there’s > something we can do (could be the ssl-vpn-connection). > > But concerning OpenMeetings 5, I would really like it, if it worked > equally stable as OpenMeetings 4. > > > > > > What’s „demo-next“? > > > > Best regards, > > Alex > > > > > > *Von:* Maxim Solodovnik <solomax...@gmail.com> > *Gesendet:* Dienstag, 17. November 2020 16:48 > *An:* Openmeetings user-list <user@openmeetings.apache.org> > *Betreff:* Re: optimize performance > > > > Hello Alex, > > > > On Tue, 17 Nov 2020 at 21:29, Ninnig, Alexander < > alexander.nin...@rechnungshof.rlp.de> wrote: > > Hi Maxim, > > > > we're still havin huge problems with people working from home. > OpenMeetings 4 is useable, OpenMeetings 5 isn't - like, not at all. > > As soon as everyone is in office, OpenMeetings 5 is great, super quality > and much simpler to use (no crappy flash). > > > > What are the symptoms? > > What is the difference between "in office" and "from home"? (are they try > to use 3G at home?) > > > > Is it the same with demo-next? > > > > > > I asked people to perform network-test, and the results show 1 Mb/s upload > or even less. > > But since OpenMeetings 4 works, I'm not sure if the test is correct. > > Also people tell me, their spouses use videoconferencing (not an the same > time, but with a different system) and they don't have these problems. > > > > > > Since Flash will be end-of-life in 2021, I will not be able to offer > OpenMeetings 4 anymore. > > But OpenMeetings 5 just doesn't work from home-office. > > > > > > > > In case you have more suggestions, I would be really thankful. > > > > > > > > > > > > Here's our scenario: > > Ubuntu 20.04.1 LTS > > > > I would use 18.04 and native (non-dockerized KMS) > > (but I'm not sure why it depends on your user's location ...) > > > > Virtual Machine (VMware Version 11, 8 CPU cores, 8 GB RAM, 60 GB HDD <-- I > can upgrade those values without any problems) > > > > I usually recommend 16GB RAM, but again the main issue why it depends on > attendees location > > > > One OpenMeetings-Server, not accessible from external PCs, so no need to > get the central firewall right (users are either in the office or use vpn; > so everybody is coming from internal network) > > Clients use Firefox 78.4.1 ESR > > OpenMeetings 5 > > Version 5.0.1 > > Revision 3628ad7 > > Builddate 2020-09-19T04:50:54Z > > Installed using "Installation OpenMeetings 5.0.1 on Ubuntu 20.04 lts.pdf" > and "Installation SSL certificates and Coturn for OpenMeetings 5.0.1 on > Ubuntu 20.04.pdf", > > but with a domain certificate (instead of let's encrypt), so skipping 1-5 > from the second installation guide. > > Also skipping part 8 from the second manual, since OpenMeetings is not > behind a firewall (just used internally) anf ufw is not installed/activated. > > LDAP configured and working > > ldap_userdn_format=sAMAccountName=%s,OU=Users,DC=myfirm,DC=local > > ldap_provisionning=AUTOCREATE > > ldap_deref_mode=always > > ldap_use_admin_to_get_attrs=true > > ldap_sync_password_to_om=true > > ldap_group_mode=NONE > > ldap_group_query=(&(memberUid=%s)(objectClass=posixGroup)) > > ldap_user_attr_login=sAMAccountName > > ldap_user_attr_lastname=sn > > ldap_user_attr_firstname=givenName > > ldap_user_attr_mail=mail > > ldap_user_attr_street=streetAddress > > ldap_user_attr_additionalname=description > > ldap_user_attr_fax=facsimileTelephoneNumber > > ldap_user_attr_zip=postalCode > > ldap_user_attr_country=c > > ldap_user_attr_town=l > > ldap_user_attr_phone=telephoneNumber > > # optional attribute for user picture > > ldap_user_attr_picture=info > > # ldap_user_attr_picture=thumbnailPhoto > > ldap_group_attr=memberOf > > ldap_user_picture_uri=profile.png > > ldap_use_lower_case=false > > ldap_import_query=(&(objectCategory=person)(wWWHomePage=*)) > > Logs for LDAP activated > > sudo vi > /opt/open501/webapps/openmeetings/WEB-INF/classes/logback-config.xml > > <logger name="org.apache.directory" level="DEBUG" /> > > · I just deactivated that > > More memory > > cd /opt > > cd open501/ > > sudo vi openmeetings.service > > # Environment CATALINA_OPTS=" à -Xms2g -Xmx4g > > Change default resolution > > sudo vi > /opt/open501/webapps/openmeetings/WEB-INF/classes/org/apache/openmeetings/web/room/VideoSettings.html > > <option value="6" data-width="320" data-height="240" > selected="selected">320x240 [HVGA 4:3 (~56 KByte/sec)]</option> > > Some Icons > > Changed some logos/icons in /opt/open501/webapps/openmeetings/css/images > and /opt/open501/webapps/openmeetings/public/ > > Configuration/Administration > > document.dpi 150 > > document.quality 90 > > screensharing.default.fps 10 > > max.upload.size 104857600 > > mp4.audio.rate 22050 > > mp4.audio.bitrate 32k > > cam.fps 10 > > mic.rate 22 > > mic.echo.cancellation on > > mic.noise.suppression on > > ulimit > > # edit the following file > > user@ubuntu:~$ sudo vim /etc/security/limits.conf > > # add following lines to it > > * soft nproc 65535 > > * hard nproc 65535 > > * soft nofile 65535 > > * hard nofile 65535 > > root soft nproc 65535 > > root hard nproc 65535 > > root soft nofile 65535 > > root hard nofile 65535 > > # edit the following file > > user@ubuntu:~$ sudo vim /etc/pam.d/common-session > > # add this line to it > > session required pam_limits.so > > # logout and login and try the following command > > user@ubuntu:~$ ulimit -n > > 65535 > > reboot > > > > Best regards, > > Alex > > > > -----Ursprüngliche Nachricht----- > Von: Maxim Solodovnik <solomax...@gmail.com> > Gesendet: Dienstag, 17. November 2020 09:52 > An: Openmeetings user-list <user@openmeetings.apache.org> > Betreff: Re: optimize performance > > > > I would expect: the stability will be improved :) > > > > On Tue, 17 Nov 2020 at 15:39, Ninnig, Alexander < > alexander.nin...@rechnungshof.rlp.de < > mailto:alexander.nin...@rechnungshof.rlp.de > <alexander.nin...@rechnungshof.rlp.de>> > wrote: > > > > > > Hi Maxim, > > > > > > > > alright, no „fs.file-max“, but all the rest. Did it. Let’s see, i fit > positively affects the performance. > > > > > > > > Best regards, > > > > Alex > > > > > > > > > > > > Von: Maxim Solodovnik <solomax...@gmail.com <mailto:solomax...@gmail.com > <solomax...@gmail.com>> > > > Gesendet: Montag, 16. November 2020 16:02 > > An: Openmeetings user-list <user@openmeetings.apache.org < > mailto:user@openmeetings.apache.org <user@openmeetings.apache.org>> > > > Betreff: Re: optimize performance > > > > > > > > > > > > > > > > On Mon, 16 Nov 2020 at 21:00, Ninnig, Alexander < > alexander.nin...@rechnungshof.rlp.de < > mailto:alexander.nin...@rechnungshof.rlp.de > <alexander.nin...@rechnungshof.rlp.de>> > wrote: > > > > Hello Maxim. > > > > > > > > I did this here in order to permanently set the value to 65535: > > > > > https://medium.com/@muhammadtriwibowo/set-permanently-ulimit-n-open-files-in-ubuntu-4d61064429a > > > > > > > > After a reboot, the server displays the increased value after I enter the > command: > > > > su nobody --shell /bin/bash --command "ulimit -n" > > > > è 65535 > > > > > > > > > > > > Here’s the description of how to increase the values, according to the > website mentioned above: > > > > > > > > # To increase the available limit to say 65535 > > user@ubuntu:~$ sudo vim /etc/sysctl.conf > > > > # add the following line to it > > fs.file-max = 65535 > > > > > > > > # run this to refresh with new config > > user@ubuntu:~$ sudo sysctl -p > > > > > > > > > > > > I wouldn't do the changes above > > > > Ubuntu 20.04 has > > > > fs.file-max = 9223372036854775807 > > > > by default > > > > no need to decrease :)) > > > > > > > > below commands are correct > > > > this is the way I'm also using :)) > > > > > > > > # edit the following file > > user@ubuntu:~$ sudo vim /etc/security/limits.conf > > > > # add following lines to it > > * soft nproc 65535 > > * hard nproc 65535 > > * soft nofile 65535 > > * hard nofile 65535 > > root soft nproc 65535 > > root hard nproc 65535 > > root soft nofile 65535 > > root hard nofile 65535 > > > > # edit the following file > > user@ubuntu:~$ sudo vim /etc/pam.d/common-session > > > > # add this line to it > > session required pam_limits.so > > > > # logout and login and try the following command > > user@ubuntu:~$ ulimit -n > > 65535 > > > > > > > > > > > > > > > > Von: Maxim Solodovnik <solomax...@gmail.com <mailto:solomax...@gmail.com > <solomax...@gmail.com>> > > > Gesendet: Donnerstag, 12. November 2020 16:35 > > An: Openmeetings user-list <user@openmeetings.apache.org < > mailto:user@openmeetings.apache.org <user@openmeetings.apache.org>> > > > Betreff: Re: optimize performance > > > > > > > > It displays current value > > > > > > > > > > > > from mobile (sorry for typos ;) > > > > > > > > > > On Thu, Nov 12, 2020, 22:16 Ninnig, Alexander < > alexander.nin...@rechnungshof.rlp.de < > mailto:alexander.nin...@rechnungshof.rlp.de > <alexander.nin...@rechnungshof.rlp.de>> > wrote: > > > > Hi, > > > > > > > > uhm, ok, so it seems like my command didn’t really change anything but > just displayed the default-value? > > > > > > > > Best regards, > > > > Alex > > > > > > > > > > > > Von: Maxim Solodovnik <solomax...@gmail.com <mailto:solomax...@gmail.com > <solomax...@gmail.com>> > > > Gesendet: Donnerstag, 12. November 2020 13:50 > > An: Openmeetings user-list <user@openmeetings.apache.org < > mailto:user@openmeetings.apache.org <user@openmeetings.apache.org>> > > > Betreff: Re: optimize performance > > > > > > > > 1024 is the default > > > > and it seems to be not enough for 1 room with 5 users .... > > > > > > > > On Thu, 12 Nov 2020 at 19:16, Ninnig, Alexander < > alexander.nin...@rechnungshof.rlp.de < > mailto:alexander.nin...@rechnungshof.rlp.de > <alexander.nin...@rechnungshof.rlp.de>> > wrote: > > > > Hi, > > > > > > > > ok, got it. Ubuntu Server cannot use „root“, unless you activate it by > setting a password. > > > > So I typed sudo root passwd and set a password. > > > > Still, su nobody --shell /bin/bash --command "ulimit -n" was asking for a > password, and it wasn’t root nor the password of my linux-user. > > > > So I typed su and my new root-password. That worked. > > > > After that, I could use the command su nobody --shell /bin/bash --command > "ulimit -n". > > > > I got the response 1024, I hope that means all is well. > > > > > > > > Never used „su“ before, always used „sudo“, so I just learned something > new. > > > > > > > > Best regards, let’s see if „ulimit“ changes the behaviour. > > > > > > > > Alex > > > > > > > > > > > > Von: Maxim Solodovnik <solomax...@gmail.com <mailto:solomax...@gmail.com > <solomax...@gmail.com>> > > > Gesendet: Donnerstag, 12. November 2020 10:08 > > An: Openmeetings user-list <user@openmeetings.apache.org < > mailto:user@openmeetings.apache.org <user@openmeetings.apache.org>> > > > Betreff: Re: optimize performance > > > > > > > > > > > > > > > > On Thu, 12 Nov 2020 at 16:05, Ninnig, Alexander < > alexander.nin...@rechnungshof.rlp.de < > mailto:alexander.nin...@rechnungshof.rlp.de > <alexander.nin...@rechnungshof.rlp.de>> > wrote: > > > > Hello Maxim, > > > > > > > > sorry to bother again, but i wanted to check out this „ulimit“-option, > since it looks promising to me. > > > > Unfortunately I don’t seem to get it; I always get „su: Authentication > failure“ after the command: su nobody --shell /bin/bash --command "ulimit > -n" > > > > > > > > `su` is a way to run command as different user > > > > it works as `sudo` > > > > to use it you need to authenticate yourself i.e. enter your current Linux > password > > > > > > > > > > > > I am using username/password from the configuration file (sudo nano > /opt/open501/webapps/openmeetings/WEB-INF/classes/applicationContext.xml; > turnUser:userpassword) – copy & paste, so there can’t be a typo. > > > > > > > > Now, I am kind of stumped here. > > > > > > > > It should be username/password from the applicationContext.xml, right? > > > > > > > > this is the user/password for TURN, I doubt you can use it > > > > > > > > > > > > Best regards, > > > > Alex > > > > > > > > > > > > > > > > Von: Maxim Solodovnik <solomax...@gmail.com <mailto:solomax...@gmail.com > <solomax...@gmail.com>> > > > Gesendet: Donnerstag, 12. November 2020 03:43 > > An: Openmeetings user-list <user@openmeetings.apache.org < > mailto:user@openmeetings.apache.org <user@openmeetings.apache.org>> > > > Betreff: Re: optimize performance > > > > > > > > Hello Alex, > > > > > > > > On Wed, 11 Nov 2020 at 19:57, Ninnig, Alexander < > alexander.nin...@rechnungshof.rlp.de < > mailto:alexander.nin...@rechnungshof.rlp.de > <alexander.nin...@rechnungshof.rlp.de>> > wrote: > > > > Hello, > > > > again, I have to say, that I really like OpenMeetings 5. When using OM5 > inhouse, everything works really well. The webcam-picture is extremely > sharp and fluent. > > > > Problem is: because of Covid19, a lot of our employees are working from > their home and they don't have the best internet-bandwith (and sometimes, > they don't know it and blame the system). > > Using OM5 with people who are working from home seems to be a little bit > more unstable, than OM4. > > Somehow I guess, that OM5 transmits more data than OM4. > > So when using OM5, people get constantly disconnected from the media > server. > > > > > > > > Please ensure ulimit for the user who run OM/KMS/TURN on server > > > > since "everything is a file" it should be possible to open lot's of files > > > > > > > > here is an example command > > > > `su nobody --shell /bin/bash --command "ulimit -n"` > > > > > > > > > > Except for the webcam-videosize: is there anything more I can do to > decrease the transmitted data? > > Can I reduce the framerate? > > > > > > > > you can try cam.fps (Admin->Config > https://openmeetings.apache.org/GeneralConfiguration.html) > > > > > > > > Can I activate some sort of higher compression? > > > > > > > > unfortunately browser will "auto-deside" all these parameters and we can > only _try_to_change_anything_ > > > > > > > > > > Best regards, > > Alex > > > > > > > > > > > > > > -- > > > > Best regards, > > Maxim > > > > > > > > > > > > > > -- > > > > Best regards, > > Maxim > > > > > > > > > > > > > > -- > > > > Best regards, > > Maxim > > > > > > > > > > > > > > -- > > > > Best regards, > > Maxim > > > > > > > > -- > > > > Best regards, > > Maxim > > > > > > > -- > > Best regards, > Maxim > -- Best regards, Maxim
