20040516: Error in using interactive gempak programs

Gerry,

When you recieve errors with message queue, its likely t hat you have
gplt and device drivers that weren't shut down with gpend (either
interactively, or in one of your crons).

The command "cleanup -c" runs a script in $NAWIPS/bin/scripts to automate
the process, but you can accomplish  the same with finding the process IDs
of gplt, xw, gf etc using "/bin/ps -eaf" and killing those,
and then using the "ipcs" cammand to list open
message queues and remove them with the "ipcrm" command.

The cleanup script mentioned above tries to automate the process,
but since the /bin/ps output format varies so much between different
systems, you may have to do it manually as above.

Steve CHiswell
Unidata User Support

On Sun, 16 May 2004, Gerry Creager N5JXS wrote:

> No, That was the first, and obvious thought.  Declan and Daryl both came
> up with a plausible starting point.  In looking at IPC resources, I had
> problems.  A number of the processes were failing and leaving resources
> hanging.
>
> df -h
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/hda2              36G  5.4G   29G  16% /
> /dev/hda1              99M  6.3M   88M   7% /boot
> none                  248M     0  248M   0% /dev/shm
> bigfoot.xxxx.xxxx:/data/gempak/nexrad/craft
>                        935G  467G  469G  50% /data/craft
> xx.xx.xx.xx:/data       151G   63G   80G  44% /data/ldm
>
> There was a reference Chiz had penned in 2000, recommending killing,
> explicitly, running Gempak programs accessing gplt, based on an
> examination using 'ps -efw' and then manually deleting the hanging IPC
> message queues ('ipcs') using 'ipcrm' which cleared the issue.
>
> I had attempted to duplicate a machine for gempak processing and had
> failed to get some of the target/output subdirectories right. As the
> scripts using those target directories couldn't write to 'em, the
> scripts failed improperly, rather than gracefully.
>
> So, rather than an easy-to-identify hard-disk error, it was a little,
> but not much, more esoteric failure caused, as most of these things are,
> by operator error.
>
> Thanks for the suggestion, though.  Good thought.
>
> Regards,
> Gerry
>
> Michael W Dross wrote:
> >
> >
> >
> > Not to state the obvious but are any of your filesystems full?
> >
> > Mike
> > ________________________________________________________
> > Michael Dross                             address@hidden
> > Duke Power Company                  Meteorologist/Scientist
> > 9700 David Taylor Dr.               Voice: 704-594-0341
> > Charlotte, NC 28269                       Mobile: 980-722-0756
> >
> >
> > |---------+----------------------------->
> > |         |           Gerry Creager     |
> > |         |           N5JXS             |
> > |         |           <gerry.creager@tam|
> > |         |           u.edu>            |
> > |         |           Sent by:          |
> > |         |           owner-gembud@unida|
> > |         |           ta.ucar.edu       |
> > |         |                             |
> > |         |                             |
> > |         |           05/15/2004 05:37  |
> > |         |           PM                |
> > |         |                             |
> > |---------+----------------------------->
> >   
> > >-------------------------------------------------------------------------------------------------------------------------------|
> >   |                                                                         
> >                                                       |
> >   |       To:       "'address@hidden'" <address@hidden>                     
> >                                     |
> >   |       cc:                                                               
> >                                                       |
> >   |       Subject:  Error in using interactive gempak programs              
> >                                                       |
> >   
> > >-------------------------------------------------------------------------------------------------------------------------------|
> >
> >
> >
> >
> > Can anyone shed some light on the following error message?
> >
> > [gerry@gemdata2 ~]$ gpnexr2
> > msgget: No space left on device
> > Error in message send = 22
> > itype, ichan, nwords,1,-1,2
> > msgget: No space left on device
> > Creating process: gplt for queue -1
> > msgget: No space left on device
> > msgget: No space left on device
> > Error in message send = 22
> > itype, ichan, nwords,1,-1,2
> > Error in message send = 22
> > itype, ichan, nwords,1,-1,3
> >   [GEMPLT -1]  NMBRER - Mailbox read.
> >   [GPNEXR2 -3]  Fatal error initializing GEMPLT.
> >
> >
> > TIA, gerry
> > --
> > Gerry Creager -- address@hidden
> > Texas Mesonet -- AATLT, Texas A&M University
> > Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.847.8578
> > Page: 979.228.0173
> > Office: 903A Eller Bldg, TAMU, College Station, TX 77843
> >
> >
> >
>
> --
> Gerry Creager -- address@hidden
> Texas Mesonet -- AATLT, Texas A&M University
> Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.847.8578
> Page: 979.228.0173
> Office: 903A Eller Bldg, TAMU, College Station, TX 77843
>