I had not been trying this with a process limit specified in the user
profile. I haven't tried specifying a larger value in the user profile but
when I put a smaller value, I got different behaviour which would seem to be
a defect. Here is the limits display before the first FTP session logs on:
D OMVS,L,PID=83886237
BPXO051I 09.28.30 DISPLAY OMVS 026
OMVS 000D ACTIVE OMVS=(00)
USER JOBNAME ASID PID PPID STATE START CT_SECS
FTPD FTPD2 0060 83886237 39 1FI--- 09.28.15 .136
LATCHWAITPID= 0 CMD=/usr/sbin/ftpdns 0 0 27 1 80 128 256
PROCESS LIMITS: LIMMSG=NONE
CURRENT HIGHWATER PROCESS
USAGE USAGE LIMIT
MAXFILEPROC 6 9 2000
MAXFILESIZE --- --- NOLIMIT
MAXPROCUSER 25 30 NOLIMIT
Here it is again after an FTP logon (userid edited out):
D OMVS,L,PID=83886237
BPXO051I 09.28.44 DISPLAY OMVS 029
OMVS 000D ACTIVE OMVS=(00)
USER JOBNAME ASID PID PPID STATE START CT_SECS
nnnnnnn nnnnnnn 0060 83886237 39 1FI--- 09.28.15 .219
LATCHWAITPID= 0 CMD=/usr/sbin/ftpdns 2135760616
PROCESS LIMITS: LIMMSG=NONE
CURRENT HIGHWATER PROCESS
USAGE USAGE LIMIT
MAXFILEPROC 8 9 2000
MAXFILESIZE --- --- NOLIMIT
MAXPROCUSER 1 1 3
Then, we keep starting FTP sessions until we get:
BPXO051I 09.31.08 DISPLAY OMVS 054
OMVS 000D ACTIVE OMVS=(00)
USER JOBNAME ASID PID PPID STATE START CT_SECS
nnnnnnn nnnnnnn 0060 83886237 39 1FI--- 09.28.15 .220
LATCHWAITPID= 0 CMD=/usr/sbin/ftpdns 2135760616
PROCESS LIMITS: LIMMSG=NONE
CURRENT HIGHWATER PROCESS
USAGE USAGE LIMIT
MAXFILEPROC 8 9 2000
MAXFILESIZE --- --- NOLIMIT
MAXPROCUSER 4 4 3
which seems wrong. When you reach the process limit, this does appear to
inhibit starting processes from the shell, so there is a difference there.
(I went through this again with a slightly larger limit in the user profile
because I hit some problems running /etc/profile for a telnet session with a
process limit of 3.) If there isn't a limit set at the user level, then it
takes longer to hit the maximum, but then creation of either FTP and telnet
sessions or new processes is inhibited when we hit the process limit.
Bill
On Thu, 19 Oct 2006 13:40:50 -0500, Big Iron <[EMAIL PROTECTED]> wrote:
>The FTP server actually starts a new process running under the userid of the
>person logging on to FTP so that data accesses will happen using that user's
>identity.
>
>Bill
>
>On Thu, 19 Oct 2006 13:15:45 -0400, Tim Hare <[EMAIL PROTECTED]> wrote:
>
>>Correct me if I'm wrong, but maybe, since the process is created by the
>>FTP server, wouldn't the process in question be created by the user ID of
>>the FTP server? I haven't ready any FTP code, but I'm thinking it
>>creates the process, then maybe does something like 'su' to have it run
>>under the ID of the person logging in.
>>
>>IF (and it's a big if I guess) that is the case, then the maximum that
>>applies is the one set to the user ID of the FTP server and you probably
>>don't want to limit that one.
>>
>>Tim Hare
>>Senior Systems Programmer
>>Florida Department of Transportation
>>(850) 414-4209
>>
>
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