>05/27/03   07:00:00     ANR9999D shmcomm.c(2255): ThreadId<35> Error
>                        attaching shared memory block: The process file
>                        table is full.
...

Bruce - This might be an internals issue in not closing obsolete file
        descriptors.  You might be able to circumvent it in your AIX.
>From my AIX notes:

File Table, maximum number              Per the AIX 4.3 doc, the default limit
                                        (per /etc/security/limits "nofiles") is
                                        2000 file descriptors for each process.
                                        That value is for compatibility with
                                        earlier releases, and may be boosted up
                                        to the /usr/include/sys/limits.h
                                        OPEN_MAX value (32767).
                                        Do 'ulimit -a' to inspect nofiles.

  Richard Sims, BU