By the way, using server_pool, is there a way to know which user of the notebook is using a user of the server_pool?
El sábado, 26 de noviembre de 2016, 11:50:12 (UTC+1), Enrique Artal escribió: > > I forgot to mention we use server_pool (there is one master-server and the > ssh connections go to accounts in both the master-server and the > secondary-server). All the users have unlimited ulimit, we put the ulimit > as an option for the notebook. > For one notebook we put limits on the users, the problem is that if they > reach the limit, their process are stopped but no one can access anymore > the notebook. This is what happens also if will kill manually the big > processes in the notebooks where the users have no limits. > > Any help will be welcome. If we put no limits we may loose any access to > the computer and the only option is turn off and on; if we put, we do not > loose access, but the notebook is stopped too soon. > Enrique. > > El sábado, 26 de noviembre de 2016, 2:49:09 (UTC+1), Nils Bruin escribió: >> >> On Friday, November 25, 2016 at 2:24:49 PM UTC-8, Enrique Artal wrote: >>> >>> In my University, most math labs are done using Sagemath; for this >>> purpose we have two PC's with sagenb service to which students access >>> remotely. In general, it works smoothly; three classrooms with 20 students >>> each, and people working at home simultaneously does not saturate the >>> servers. Sometimes, students program some infinite loops or try heavy >>> computations. The notebook is launched with ulimits but they do not seem to >>> work, and 30GB process (resident memory) arise, and they usually hang the >>> notebook; killing the process is not enough, one must restart the notebook. >>> >> >> Unless >> >> https://trac.sagemath.org/ticket/9398 >> >> has reared its head again, ulimits should be respected. However, you >> probably run the notebook setup in a "server pool" setup. You need to >> configure those accounts to set the ulimit in order to limit the memory use >> of the computer processes. >> >> > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
