On Wed, Nov 28, 2007 at 03:03:30PM -0500, Guy Boisvert alleged:
> Hi all!
>
> I have a problem with CentOS 4.4 and Communigate Pro 5.0.9. As our
> user number grows, we are seeing "too many files open" error messages in
> Communigate logs.
>
> I spoke with Communigate tech support and they asked me to increase
> the number of file descriptors which i did. I put 128000 as a script i
> made to check Communigate open files reported as high as 99000. As i
> checked the Communigate log file, it reported that it "sees" 1024
> "available" file descriptors.
>
> Reporting that to Communigate tech support, the guy answered:
>
> "CommuniGate gets this number via getdtablesize() system call. Probably
> in CentOS the table has a fixed size so you need to recompile the kernel
> to expand it. Try upgrading CentOS to 4.5 (or whatever later version is
> available) "
>
>
> I'm a little afraid of upgrading the server right away, i don't want
> to worsen the problem. Or maybe it's safe to do it. I dunno.
>
> Is there anybody on the list that can comment on what the
> Communigate tech support guy said about the "getdtablesize" thing ?
As usual, commercial support is just making things up. This one is easy to actually test.
#include <unistd.h>
#include <stdio.h>
int main (void) {
printf("current file limit: %d\n",getdtablesize);
exit (0);
}
Compile it, run it, viola!
$ gcc getdtablesize.c
$ ./a.out
current file limit: 134513392
(results will vary).
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