On Mon, 16 Nov 2020 at 21:00, Ninnig, Alexander < [email protected]> 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* > > > > > > Mit vielen freundlichen Grüßen, > > > > Alexander Ninnig > > Rechnungshof Rheinland-Pfalz > > > > Gerhart-Hauptmann-Straße 4 > > 67346 Speyer > > > > Phone: +49(0)6232/617-285 > > Fax: +49(0)6232/617-100 > > Mail: [email protected] > > Web: https://rechnungshof.rlp.de/ > > > > *Von:* Maxim Solodovnik <[email protected]> > *Gesendet:* Donnerstag, 12. November 2020 16:35 > *An:* Openmeetings user-list <[email protected]> > *Betreff:* Re: optimize performance > > > > It displays current value > > > > > > from mobile (sorry for typos ;) > > > > > On Thu, Nov 12, 2020, 22:16 Ninnig, Alexander < > [email protected]> 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 <[email protected]> > *Gesendet:* Donnerstag, 12. November 2020 13:50 > *An:* Openmeetings user-list <[email protected]> > *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 < > [email protected]> 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 <[email protected]> > *Gesendet:* Donnerstag, 12. November 2020 10:08 > *An:* Openmeetings user-list <[email protected]> > *Betreff:* Re: optimize performance > > > > > > > > On Thu, 12 Nov 2020 at 16:05, Ninnig, Alexander < > [email protected]> 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 <[email protected]> > *Gesendet:* Donnerstag, 12. November 2020 03:43 > *An:* Openmeetings user-list <[email protected]> > *Betreff:* Re: optimize performance > > > > Hello Alex, > > > > On Wed, 11 Nov 2020 at 19:57, Ninnig, Alexander < > [email protected]> 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
