Susan
On Unix at least you can use the "fuser -u <<filename>>" command.
e.g.
find dir_path -exec fuser -u {} \;>>/work/pidlog
The pidlog file will contain an entry for every file and each file will have
the list of PIDs that have the file open. You can use the text file to
collate a counted total of files open by each process. The PID then relates
to the UV (or UDT) process in the usual way.
The usual culprits for "too many files" if you have kept an eye on the
kernel 9MFILES/MAXFILES/maximum inodes etc) and udtconfig are:
1. Failing to close O/S level files (OPENSEQ etc or file handles for API
calls (e.g. socket))
2. Program recursion via EXECUTEs or similar
3. (not in your case) setting the maximum number of files > 240 or
thereabouts on Sun. (Solaris has a hard upper limit of 256 file handles for
a 32-bit application.
4. GCI//CALLC functions leaking memory handles
5. Message queues take file handles too....
Take a look at the output from "kp" and match it against the kernel and your
udtconfig (post them if you want and we can look):
/etc/system
"kp" output
udtconfig
Hope some of this helps.
Regards
JayJay
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Susan Joslyn
Sent: 13 December 2006 15:30
To: u2-users@listserver.u2ug.org
Subject: [U2] Managing open files
Greetings group,
I have a problem at a new installation of PRC on a Unidata/Windows system.
There are a couple of occasions where I get an announcement that "too many
files" are open, and my program bombs. I think it's the combination of
files that the application software has open as well as the ones I have open
at that moment, plus SB+.
The most helpful thing for me would be some function that will tell me at
any given time how many files I have open and what files they are. I can't
find anything like that. I have ways that I can determine what files I have
open, and SB+ keeps a list of the ones it has open. But I don't know what
the limit is.
I guess I'm going to have to take the "known places" where this is occurring
(as they occur) and close all of my files that I don't need and hope it's
enough.
Anyone know of anything that will help me solve this problem? All advice
appreciated!
Cheers,
Susan Joslyn
p.s. I'm a digest subscriber so I'll either see responses later (which is
fine, I'm in no hurry) or you can copy me directly at [EMAIL PROTECTED] if
you like.
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