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. In this configuration the sever will run for days without failure until I stop it. If I try to add a third process or restart one of the process with a higher connection limit, bad things will start happening at about 700 open sockets. Thanks in advance to anyone who can help. -- Bryan <>< -- 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
