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Full Discussion: problem with lots of open sockets
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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LEARN ABOUT DEBIAN

dbus-cleanup-sockets

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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