My program has encountered “Too many open files” error when it spawns
processes. So I modify /boot/build/qnxbasedma.build file by adding the
option -F 1000 to procnto, and invoke mkifs qnxbasedma.build /.boot. And
reboot the system. But the problem remains. Can anyone tell me what I have
missed here? Am I modifying the right build file and command? Thanks.
Could you have a file descriptor leak in your program?
We had the same problem and it was due to a fd leak in our software. Use
something like spin to monitor the number of file descriptors.
–
Jens
“Johannes” <Jsukamtoh@infolink.co.id> wrote in message
news:biffh4$1ao$1@inn.qnx.com…
My program has encountered “Too many open files” error when it spawns
processes. So I modify /boot/build/qnxbasedma.build file by adding the
option -F 1000 to procnto, and invoke mkifs qnxbasedma.build /.boot. And
reboot the system. But the problem remains. Can anyone tell me what I have
missed here? Am I modifying the right build file and command? Thanks.
Sorry, I was wrong. The error was not due to opening file, but creating
socket. What is the maximum socket that a process can create? How to set it
to the maximum? spin shows 878 FDs on both client and server processes and
the total FDs is over 2 thousands. sysconf (_SC_OPEN_MAX) is 10000 because I
have added -F10000 in procnto.
Where can I find this and other system limitations on the document?
Thanks
“Jens H Jorgensen” <jhj@remove-nospam-videk.com> wrote in message
news:bifh5c$227$1@inn.qnx.com…
Could you have a file descriptor leak in your program?
We had the same problem and it was due to a fd leak in our software. Use
something like spin to monitor the number of file descriptors.–
Jens
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:biffh4$1ao$> 1@inn.qnx.com> …
My program has encountered “Too many open files” error when it spawns
processes. So I modify /boot/build/qnxbasedma.build file by adding the
option -F 1000 to procnto, and invoke mkifs qnxbasedma.build /.boot. And
reboot the system. But the problem remains. Can anyone tell me what I
have
missed here? Am I modifying the right build file and command? Thanks.
\
This should be fixed in 6.2.1B. The stack was enforcing
an artifically low limit.
-seanb
Johannes <Jsukamtoh@infolink.co.id> wrote:
Sorry, I was wrong. The error was not due to opening file, but creating
socket. What is the maximum socket that a process can create? How to set it
to the maximum? spin shows 878 FDs on both client and server processes and
the total FDs is over 2 thousands. sysconf (_SC_OPEN_MAX) is 10000 because I
have added -F10000 in procnto.Where can I find this and other system limitations on the document?
Thanks
“Jens H Jorgensen” <> jhj@remove-nospam-videk.com> > wrote in message
news:bifh5c$227$> 1@inn.qnx.com> …
Could you have a file descriptor leak in your program?We had the same problem and it was due to a fd leak in our software. Use
something like spin to monitor the number of file descriptors.–
Jens
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:biffh4$1ao$> 1@inn.qnx.com> …
My program has encountered “Too many open files” error when it spawns
processes. So I modify /boot/build/qnxbasedma.build file by adding the
option -F 1000 to procnto, and invoke mkifs qnxbasedma.build /.boot. And
reboot the system. But the problem remains. Can anyone tell me what I
have
missed here? Am I modifying the right build file and command? Thanks.
\
Hi, Sean, I am using PE 6.2.1B version. And I have double check that with my
QNX installed software.
“Sean Boudreau” <seanb@node25.ott.qnx.com> wrote in message
news:bil4n1$225$1@nntp.qnx.com…
This should be fixed in 6.2.1B. The stack was enforcing
an artifically low limit.-seanb
Johannes <> Jsukamtoh@infolink.co.id> > wrote:
Sorry, I was wrong. The error was not due to opening file, but creating
socket. What is the maximum socket that a process can create? How to set
it
to the maximum? spin shows 878 FDs on both client and server processes
and
the total FDs is over 2 thousands. sysconf (_SC_OPEN_MAX) is 10000
because I
have added -F10000 in procnto.Where can I find this and other system limitations on the document?
Thanks
“Jens H Jorgensen” <> jhj@remove-nospam-videk.com> > wrote in message
news:bifh5c$227$> 1@inn.qnx.com> …
Could you have a file descriptor leak in your program?We had the same problem and it was due to a fd leak in our software.
Use
something like spin to monitor the number of file descriptors.–
Jens
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:biffh4$1ao$> 1@inn.qnx.com> …
My program has encountered “Too many open files” error when it spawns
processes. So I modify /boot/build/qnxbasedma.build file by adding
the
option -F 1000 to procnto, and invoke mkifs qnxbasedma.build /.boot.
And
reboot the system. But the problem remains. Can anyone tell me what I
have
missed here? Am I modifying the right build file and command? Thanks.
\
Sorry, another mistake here. I forgot to increase -F in my boot image. It
works after I have done that with 6.2.1B. Thanks.
“Johannes” <Jsukamtoh@infolink.co.id> wrote in message
news:biu6uo$t17$1@inn.qnx.com…
Hi, Sean, I am using PE 6.2.1B version. And I have double check that with
my
QNX installed software.“Sean Boudreau” <> seanb@node25.ott.qnx.com> > wrote in message
news:bil4n1$225$> 1@nntp.qnx.com> …This should be fixed in 6.2.1B. The stack was enforcing
an artifically low limit.-seanb
Johannes <> Jsukamtoh@infolink.co.id> > wrote:
Sorry, I was wrong. The error was not due to opening file, but
creating
socket. What is the maximum socket that a process can create? How to
set
it
to the maximum? spin shows 878 FDs on both client and server processes
and
the total FDs is over 2 thousands. sysconf (_SC_OPEN_MAX) is 10000
because I
have added -F10000 in procnto.Where can I find this and other system limitations on the document?
Thanks
“Jens H Jorgensen” <> jhj@remove-nospam-videk.com> > wrote in message
news:bifh5c$227$> 1@inn.qnx.com> …
Could you have a file descriptor leak in your program?We had the same problem and it was due to a fd leak in our software.
Use
something like spin to monitor the number of file descriptors.–
Jens
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:biffh4$1ao$> 1@inn.qnx.com> …
My program has encountered “Too many open files” error when it
spawns
processes. So I modify /boot/build/qnxbasedma.build file by adding
the
option -F 1000 to procnto, and invoke mkifs qnxbasedma.build
/.boot.
And
reboot the system. But the problem remains. Can anyone tell me what
I
have
missed here? Am I modifying the right build file and command?
Thanks.
\
Now the problem turns to spawn function. I have set -F20000 to procnto, but
I still get EMFILE when I call spawn function. spin shows a total of 4079
FDs. Any ideas?
“Johannes” <Jsukamtoh@infolink.co.id> wrote in message
news:bivd4m$q9q$1@inn.qnx.com…
Sorry, another mistake here. I forgot to increase -F in my boot image. It
works after I have done that with 6.2.1B. Thanks.
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:biu6uo$t17$> 1@inn.qnx.com> …
Hi, Sean, I am using PE 6.2.1B version. And I have double check that
with
my
QNX installed software.“Sean Boudreau” <> seanb@node25.ott.qnx.com> > wrote in message
news:bil4n1$225$> 1@nntp.qnx.com> …This should be fixed in 6.2.1B. The stack was enforcing
an artifically low limit.-seanb
Johannes <> Jsukamtoh@infolink.co.id> > wrote:
Sorry, I was wrong. The error was not due to opening file, but
creating
socket. What is the maximum socket that a process can create? How to
set
it
to the maximum? spin shows 878 FDs on both client and server
processes
and
the total FDs is over 2 thousands. sysconf (_SC_OPEN_MAX) is 10000
because I
have added -F10000 in procnto.Where can I find this and other system limitations on the document?
Thanks
“Jens H Jorgensen” <> jhj@remove-nospam-videk.com> > wrote in message
news:bifh5c$227$> 1@inn.qnx.com> …
Could you have a file descriptor leak in your program?We had the same problem and it was due to a fd leak in our
software.
Use
something like spin to monitor the number of file descriptors.–
Jens
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:biffh4$1ao$> 1@inn.qnx.com> …
My program has encountered “Too many open files” error when it
spawns
processes. So I modify /boot/build/qnxbasedma.build file by
adding
the
option -F 1000 to procnto, and invoke mkifs qnxbasedma.build
/.boot.
And
reboot the system. But the problem remains. Can anyone tell me
what
I
have
missed here? Am I modifying the right build file and command?
Thanks.
\
This is a side question - but once again why do you that many open sockets?
–
Jens
“Johannes” <Jsukamtoh@infolink.co.id> wrote in message
news:bj76k9$jp9$1@inn.qnx.com…
Now the problem turns to spawn function. I have set -F20000 to procnto,
but
I still get EMFILE when I call spawn function. spin shows a total of 4079
FDs. Any ideas?“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:bivd4m$q9q$> 1@inn.qnx.com> …
Sorry, another mistake here. I forgot to increase -F in my boot image.
It
works after I have done that with 6.2.1B. Thanks.
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:biu6uo$t17$> 1@inn.qnx.com> …
Hi, Sean, I am using PE 6.2.1B version. And I have double check that
with
my
QNX installed software.“Sean Boudreau” <> seanb@node25.ott.qnx.com> > wrote in message
news:bil4n1$225$> 1@nntp.qnx.com> …This should be fixed in 6.2.1B. The stack was enforcing
an artifically low limit.-seanb
Johannes <> Jsukamtoh@infolink.co.id> > wrote:
Sorry, I was wrong. The error was not due to opening file, but
creating
socket. What is the maximum socket that a process can create? How
to
set
it
to the maximum? spin shows 878 FDs on both client and server
processes
and
the total FDs is over 2 thousands. sysconf (_SC_OPEN_MAX) is 10000
because I
have added -F10000 in procnto.Where can I find this and other system limitations on the
document?Thanks
“Jens H Jorgensen” <> jhj@remove-nospam-videk.com> > wrote in message
news:bifh5c$227$> 1@inn.qnx.com> …
Could you have a file descriptor leak in your program?We had the same problem and it was due to a fd leak in our
software.
Use
something like spin to monitor the number of file descriptors.–
Jens
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:biffh4$1ao$> 1@inn.qnx.com> …
My program has encountered “Too many open files” error when it
spawns
processes. So I modify /boot/build/qnxbasedma.build file by
adding
the
option -F 1000 to procnto, and invoke mkifs qnxbasedma.build
/.boot.
And
reboot the system. But the problem remains. Can anyone tell me
what
I
have
missed here? Am I modifying the right build file and command?
Thanks.
\
Because my application is interfacing with hundreds of devices which can
communicate on socket only, and also because I am using UDP for IPC instead
of QNX messaging for the sake of running the application on other O/S.
“Jens H Jorgensen” <jhj@remove-nospam-videk.com> wrote in message
news:bj7k58$t53$1@inn.qnx.com…
This is a side question - but once again why do you that many open
sockets?–
Jens
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:bj76k9$jp9$> 1@inn.qnx.com> …
Now the problem turns to spawn function. I have set -F20000 to procnto,
but
I still get EMFILE when I call spawn function. spin shows a total of
4079
FDs. Any ideas?“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:bivd4m$q9q$> 1@inn.qnx.com> …
Sorry, another mistake here. I forgot to increase -F in my boot image.
It
works after I have done that with 6.2.1B. Thanks.
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:biu6uo$t17$> 1@inn.qnx.com> …
Hi, Sean, I am using PE 6.2.1B version. And I have double check that
with
my
QNX installed software.“Sean Boudreau” <> seanb@node25.ott.qnx.com> > wrote in message
news:bil4n1$225$> 1@nntp.qnx.com> …This should be fixed in 6.2.1B. The stack was enforcing
an artifically low limit.-seanb
Johannes <> Jsukamtoh@infolink.co.id> > wrote:
Sorry, I was wrong. The error was not due to opening file, but
creating
socket. What is the maximum socket that a process can create?
How
to
set
it
to the maximum? spin shows 878 FDs on both client and server
processes
and
the total FDs is over 2 thousands. sysconf (_SC_OPEN_MAX) is
10000
because I
have added -F10000 in procnto.Where can I find this and other system limitations on the
document?Thanks
“Jens H Jorgensen” <> jhj@remove-nospam-videk.com> > wrote in
message
news:bifh5c$227$> 1@inn.qnx.com> …
Could you have a file descriptor leak in your program?We had the same problem and it was due to a fd leak in our
software.
Use
something like spin to monitor the number of file descriptors.–
Jens
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:biffh4$1ao$> 1@inn.qnx.com> …
My program has encountered “Too many open files” error when
it
spawns
processes. So I modify /boot/build/qnxbasedma.build file by
adding
the
option -F 1000 to procnto, and invoke mkifs qnxbasedma.build
/.boot.
And
reboot the system. But the problem remains. Can anyone tell
me
what
I
have
missed here? Am I modifying the right build file and command?
Thanks.
\
Hi Jen, any idea what is the maximum number of socket that Neutrino
supports? This is the question I have in mind, including other system
limitations that nobody from QNX cares to answer it
“Jens H Jorgensen” <jhj@remove-nospam-videk.com> wrote in message
news:bj7k58$t53$1@inn.qnx.com…
This is a side question - but once again why do you that many open
sockets?–
Jens
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:bj76k9$jp9$> 1@inn.qnx.com> …
Now the problem turns to spawn function. I have set -F20000 to procnto,
but
I still get EMFILE when I call spawn function. spin shows a total of
4079
FDs. Any ideas?“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:bivd4m$q9q$> 1@inn.qnx.com> …
Sorry, another mistake here. I forgot to increase -F in my boot image.
It
works after I have done that with 6.2.1B. Thanks.
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:biu6uo$t17$> 1@inn.qnx.com> …
Hi, Sean, I am using PE 6.2.1B version. And I have double check that
with
my
QNX installed software.“Sean Boudreau” <> seanb@node25.ott.qnx.com> > wrote in message
news:bil4n1$225$> 1@nntp.qnx.com> …This should be fixed in 6.2.1B. The stack was enforcing
an artifically low limit.-seanb
Johannes <> Jsukamtoh@infolink.co.id> > wrote:
Sorry, I was wrong. The error was not due to opening file, but
creating
socket. What is the maximum socket that a process can create?
How
to
set
it
to the maximum? spin shows 878 FDs on both client and server
processes
and
the total FDs is over 2 thousands. sysconf (_SC_OPEN_MAX) is
10000
because I
have added -F10000 in procnto.Where can I find this and other system limitations on the
document?Thanks
“Jens H Jorgensen” <> jhj@remove-nospam-videk.com> > wrote in
message
news:bifh5c$227$> 1@inn.qnx.com> …
Could you have a file descriptor leak in your program?We had the same problem and it was due to a fd leak in our
software.
Use
something like spin to monitor the number of file descriptors.–
Jens
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:biffh4$1ao$> 1@inn.qnx.com> …
My program has encountered “Too many open files” error when
it
spawns
processes. So I modify /boot/build/qnxbasedma.build file by
adding
the
option -F 1000 to procnto, and invoke mkifs qnxbasedma.build
/.boot.
And
reboot the system. But the problem remains. Can anyone tell
me
what
I
have
missed here? Am I modifying the right build file and command?
Thanks.
\
Hello Johannes
No unfortunatly I don’t.
Do you have an active support agreement with QSSL?
If that is the case send an email to support@"remove-nospam"qnx.com
–
Jens
“Johannes” <Jsukamtoh@infolink.co.id> wrote in message
news:bj8qr5$poj$1@inn.qnx.com…
Hi Jen, any idea what is the maximum number of socket that Neutrino
supports? This is the question I have in mind, including other system
limitations that nobody from QNX cares to answer it“Jens H Jorgensen” <> jhj@remove-nospam-videk.com> > wrote in message
news:bj7k58$t53$> 1@inn.qnx.com> …
This is a side question - but once again why do you that many open
sockets?–
Jens
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:bj76k9$jp9$> 1@inn.qnx.com> …
Now the problem turns to spawn function. I have set -F20000 to
procnto,
but
I still get EMFILE when I call spawn function. spin shows a total of
4079
FDs. Any ideas?“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:bivd4m$q9q$> 1@inn.qnx.com> …
Sorry, another mistake here. I forgot to increase -F in my boot
image.
It
works after I have done that with 6.2.1B. Thanks.
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:biu6uo$t17$> 1@inn.qnx.com> …
Hi, Sean, I am using PE 6.2.1B version. And I have double check
that
with
my
QNX installed software.“Sean Boudreau” <> seanb@node25.ott.qnx.com> > wrote in message
news:bil4n1$225$> 1@nntp.qnx.com> …This should be fixed in 6.2.1B. The stack was enforcing
an artifically low limit.-seanb
Johannes <> Jsukamtoh@infolink.co.id> > wrote:
Sorry, I was wrong. The error was not due to opening file, but
creating
socket. What is the maximum socket that a process can create?
How
to
set
it
to the maximum? spin shows 878 FDs on both client and server
processes
and
the total FDs is over 2 thousands. sysconf (_SC_OPEN_MAX) is
10000
because I
have added -F10000 in procnto.Where can I find this and other system limitations on the
document?Thanks
“Jens H Jorgensen” <> jhj@remove-nospam-videk.com> > wrote in
message
news:bifh5c$227$> 1@inn.qnx.com> …
Could you have a file descriptor leak in your program?We had the same problem and it was due to a fd leak in our
software.
Use
something like spin to monitor the number of file
descriptors.–
Jens
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:biffh4$1ao$> 1@inn.qnx.com> …
My program has encountered “Too many open files” error when
it
spawns
processes. So I modify /boot/build/qnxbasedma.build file by
adding
the
option -F 1000 to procnto, and invoke mkifs
qnxbasedma.build
/.boot.
And
reboot the system. But the problem remains. Can anyone tell
me
what
I
have
missed here? Am I modifying the right build file and
command?
Thanks.
\
6.2.1B is only limited by available memory. Any per process limits
are enforced by procnto. Does the process you’re spawning need to
inherit all these sockets? If not, set fcntl(sock, F_SETFD, FD_CLOEXEC).
Run multiple instances of the following if you want to test system wide
socket limits:
-seanb
#include <sys/socket.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
int
main(void)
{
int i;
for (i = 0; ; i++) {
if (socket(AF_INET, SOCK_STREAM, 0) == -1) {
fprintf(stderr, “socket # %d: %s\n”, i, strerror(errno));
break;
}
}
pause();
return 0;
}
Johannes <Jsukamtoh@infolink.co.id> wrote:
Hi Jen, any idea what is the maximum number of socket that Neutrino
supports? This is the question I have in mind, including other system
limitations that nobody from QNX cares to answer it“Jens H Jorgensen” <> jhj@remove-nospam-videk.com> > wrote in message
news:bj7k58$t53$> 1@inn.qnx.com> …
This is a side question - but once again why do you that many open
sockets?–
Jens
“Johannes” <> Jsukamtoh@infolink.co.id> > wrote in message
news:bj76k9$jp9$> 1@inn.qnx.com> …
Now the problem turns to spawn function. I have set -F20000 to procnto,
but
I still get EMFILE when I call spawn function. spin shows a total of
4079
FDs. Any ideas?