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Top Forums Programming problem with lots of open sockets Post 302315136 by jim mcnamara on Monday 11th of May 2009 03:47:53 PM
Old 05-11-2009
Okay. There is a limit to the number of open "fd" file descriptors that a process can have. What closes those file descriptors?

If your process is hanging it has to have reached some resource limit. Or there is a race condition.

There is getrusage()/getrlimit() - they let you track and report all of the resources the process is using. I would suggest instrumenting your code with that, have it report all of the resources getrusage will show on your system - write it to a file with timestamps for each entry.

Start there.
 

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dbus-cleanup-sockets(1) 				      General Commands Manual					   dbus-cleanup-sockets(1)

NAME
dbus-cleanup-sockets - clean up leftover sockets in a directory SYNOPSIS
dbus-cleanup-sockets [DIRECTORY] DESCRIPTION
The dbus-cleanup-sockets command cleans up unused D-Bus connection sockets. See http://www.freedesktop.org/software/dbus/ for more informa- tion about the big picture. If given no arguments, dbus-cleanup-sockets cleans up sockets in the standard default socket directory for the per-user-login-session mes- sage bus; this is usually /tmp. Optionally, you can pass a different directory on the command line. On Linux, this program is essentially useless, because D-Bus defaults to using "abstract sockets" that exist only in memory and don't have a corresponding file in /tmp. On most other flavors of UNIX, it's possible for the socket files to leak when programs using D-Bus exit abnormally or without closing their D-Bus connections. Thus, it might be interesting to run dbus-cleanup-sockets in a cron job to mop up any leaked sockets. Or you can just ignore the leaked sockets, they aren't really hurting anything, other than cluttering the output of "ls /tmp" AUTHOR
dbus-cleanup-sockets was adapted by Havoc Pennington from linc-cleanup-sockets written by Michael Meeks. BUGS
Please send bug reports to the D-Bus mailing list or bug tracker, see http://www.freedesktop.org/software/dbus/ dbus-cleanup-sockets(1)
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