[sage-support] Re: Processes followup
The symptom of twisted going nuts is exactly what happened in the wiki. Which kernel are you using? Can you check kern.log (or is it kernel.log) in /var/log for any oddities? Linux sage 2.6.17-12-386 #2 Tue Dec 18 02:08:33 UTC 2007 i686 GNU/ Linux No oddities in kern.log. - kcrisman --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Processes followup
Your Sage notebook is probably seriously misconfigured. Not knowing anything further and not having access, I have no idea how. I've never seen the actual problem you're describing though. Just for reference, is there any file or command that would give a complete list of server configuration options as current while the server is running? I honestly don't think we did anything unusual or not by the wiki when setting up, but we are trying several alternate things in a quest to track it down. - kcrisman --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Processes followup
On Thu, Apr 9, 2009 at 8:26 AM, kcrisman kcris...@gmail.com wrote: Your Sage notebook is probably seriously misconfigured. Not knowing anything further and not having access, I have no idea how. I've never seen the actual problem you're describing though. Just for reference, is there any file or command that would give a complete list of server configuration options as current while the server is running? The file sage_notebook/twistedconf.tac gives all twisted-related configuration information. I honestly don't think we did anything unusual or not by the wiki when setting up, but we are trying several alternate things in a quest to track it down. - kcrisman -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Processes followup
On Wed, Apr 8, 2009 at 12:14 PM, kcrisman kcris...@gmail.com wrote: You probably don't have nearly enough RAM to support running several Sage processes. Perhaps your use of ulimit to limit resource consumption isn't setup very well. It's hard to give you any information at all though, given that your email question doesn't clearly summarize all the details about your current Sage notebook install. There are infinitely many ways to configure a Sage notebook server. Just as a postscript, this (very new) problem we are having turns out to have nothing to do with memory etc, at least not directly. Instead, the following process in the virtual machine seems to be the problem: python /usr/local/sage/local/bin/twistd --pidfile=sage_notebook/ twistd.pid -ny sage_notebook/twistedconf.tac That process is the Sage notebook server. It consumes between 99% and 100% of all CPU on the VM whenever one attempts to evaluate, e.g., 2+2. For minutes on end, with no other users doing anything. Eventually, when people give up or the calculation ends or is interrupted, it goes back to a quiescent state. It starts up immediately upon starting the machine, which is done with the additional instruction Your Sage notebook is probably seriously misconfigured. Not knowing anything further and not having access, I have no idea how. I've never seen the actual problem you're describing though. I hope you figure it out. William su - notebook but everything else is the same as anywhere else. For instance each new worksheet or user or whatever is via bash -c ulimit -v 50; sage -python -u On my own installation of 3.4 I have similar extremely slow issues in the notebook, e.g. checking whether a Legendre symbol is + or -1 takes around two minutes, with a huge amount due to this process. - kcrisman -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Processes followup
On Apr 8, 1:11 pm, William Stein wst...@gmail.com wrote: On Wed, Apr 8, 2009 at 12:14 PM, kcrisman kcris...@gmail.com wrote: You probably don't have nearly enough RAM to support running several Sage processes. Perhaps your use of ulimit to limit resource consumption isn't setup very well. It's hard to give you any information at all though, given that your email question doesn't clearly summarize all the details about your current Sage notebook install. There are infinitely many ways to configure a Sage notebook server. Just as a postscript, this (very new) problem we are having turns out to have nothing to do with memory etc, at least not directly. Instead, the following process in the virtual machine seems to be the problem: python /usr/local/sage/local/bin/twistd --pidfile=sage_notebook/ twistd.pid -ny sage_notebook/twistedconf.tac That process is the Sage notebook server. It consumes between 99% and 100% of all CPU on the VM whenever one attempts to evaluate, e.g., 2+2. For minutes on end, with no other users doing anything. Eventually, when people give up or the calculation ends or is interrupted, it goes back to a quiescent state. It starts up immediately upon starting the machine, which is done with the additional instruction Your Sage notebook is probably seriously misconfigured. Not knowing anything further and not having access, I have no idea how. I've never seen the actual problem you're describing though. I hope you figure it out. William The symptom of twisted going nuts is exactly what happened in the wiki. Which kernel are you using? Can you check kern.log (or is it kernel.log) in /var/log for any oddities? The issue on the old sagemath.org was with some probability a hardware issue, i.e. wonky RAM, even though that was never 100% verified. Cheers, Michael --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
