On Sun, Feb 15, 2009 at 9:48 PM, Bryan Christ <bryan.christ@xxxxxxxxx> wrote: > I am writing a multi-threaded application which services hundreds of > remote connections for data transfer. Several instances of this > program are run simultaneously. The problem is that whenever the > total number of active user connections (cumulative total of all open > sockets tallied from all process instances) reaches about 700 the > system appears to run out of file descriptors. I have tried raising > the open files limit via "ulimit -n" and by using the setrlimit() > facility. Neither of these seem to help. I am currently having to > limit the number of processes running on the system to 2 instances > allowing no more than 256 connections each. Have you tried editing /etc/security/limits.conf (or equivalent file on your system) to increase the max number of open files? perhaps something like: * - nofile 524288 is what you want? joe -- To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
