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20030610: Native support of LDM on HPUX-11i

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  • Subject: 20030610: Native support of LDM on HPUX-11i
  • Date: Tue, 10 Jun 2003 08:59:54 -0600
Gregory,

> To: address@hidden
> From: "Gregory Grosshans" <address@hidden>
> Subject: Native support of LDM on HPUX-11i
> Organization: NOAA

The above message contained the following:

> Its my understanding that HP will no longer be supporting HPUX 10.20 at 
> the end of June this year.  Various National Centers within NCEP (e.g. 
> SPC, AWC, TPC, NCO (i.e. HPC/MPC)) use LDM on a number of HP machines. 
>  Can you tell me when LDM will have native support for HPUX-11i (i.e. 
> its compiled and will run)?

The LDM 6 package builds under HP-UX 11 but the LDM fails shortly after 
startup with a out-of-memory error that is not seen on any other
platform:

    $ uname -a
    HP-UX tweety B.11.00 E 9000/785 2004553471 8-user license
    $ rpc.ldmd -vl- -q data/ldm.pq etc/ldmd.conf 
    Jun 10 14:43:11 rpc.ldmd[25494]: Starting Up (version: 6.0.12; built: May 
21 2003 13:11:59)
    Jun 10 14:43:11 emo[25495]: Starting Up(6.0.12): emo.unidata.ucar.edu: 
TS_ZERO TS_ENDT {{EXP,  ".*"}}
    Jun 10 14:43:11 emo[25495]: Desired product class: 20030610134311.946 
TS_ENDT {{EXP,  ".*"}}
    Jun 10 14:43:11 emo[25495]: Connected to upstream LDM using protocol 
version 6
    Jun 10 14:43:11 emo[25495]: Upstream LDM is willing to feed
    Jun 10 14:43:11 emo[25495]: svc_fd_create: No memory!
    Jun 10 14:43:11 emo[25495]: ERROR: requester6.c:134: Couldn't create RPC 
service for emo.unidata.ucar.edu
    Jun 10 14:43:11 emo[25495]: Exiting
    Jun 10 14:43:11 rpc.ldmd[25494]: SIGCHLD
    Jun 10 14:43:17 rpc.ldmd[25494]: SIGINT
    Jun 10 14:43:17 rpc.ldmd[25494]: Exiting
    Jun 10 14:43:17 rpc.ldmd[25494]: Terminating process group
    Jun 10 14:43:17 rpc.ldmd[25494]: child 25495 exited with status 1
    $

This might be due to the limit on the size of the data segment under
HP-UX 11:

    $ ulimit -a
    core file size (blocks)     0
    data seg size (kbytes)      65536           # this is the one
    file size (blocks)          unlimited
    max memory size (kbytes)    unlimited
    open files                  60
    pipe size (512 bytes)       16
    stack size (kbytes)         8192
    cpu time (seconds)          unlimited
    max user processes          76
    virtual memory (kbytes)     unlimited

This parameter is unlimited on all our other systems.  Unfortunately,
the kernel must be rebuilt in order to change this parameter and we've
been unsuccessful in our attempts to do this so far.

Any help you can give with this problem would be appreciated.

Just FYI, the LDM 6 package runs successfully on the following systems
(which we have in-house): AIX 5.1, AIX 4.3, FreeBSD 4.5, FreeBSD 4.7,
IRIX 6.5, IRIX64 6.5, Linux 2.4.18, OSF1 V5.1, SunOS 5.8 (sparc), SunOS
5.8 (i86pc).

> Thanks,
> Gregg Grosshans
> NCEP/Storm Prediction Center

Regards,
Steve Emmerson