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20030429: LDM not getting data

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  • Subject: 20030429: LDM not getting data
  • Date: Tue, 29 Apr 2003 16:53:08 -0600
>From: William C Klein <address@hidden>
>Organization: Valparaiso
>Keywords: 200304292212.h3TMC57U015256 LDM

Hi Bill,

>We are not getting any incoming data here at Valparaiso.
>I've checked on ldm and it seems to be working fine:
>
>[ aeolus : ldm : ~/etc ]
>[ 61 ] > ldmadmin ps
> F S      UID   PID  PPID  C PRI NI     ADDR     SZ    WCHAN    STIME TTY
>TIME CMD
> 8 R      ldm 21939 21926 12  66 20        ?  49891          22:03:21 ?
>0:30 rpc.ldmd -q /home/ldm/data/ldm.pq /
> 8 R      ldm 21932 21926 11  66 20        ?  49891          22:03:20 ?
>0:30 rpc.ldmd -q /home/ldm/data/ldm.pq /
> 8 R      ldm 21931 21926 11  66 20        ?  49874          22:03:20 ?
>0:30 rtstats -h rtstats.unidata.ucar.edu
> 8 R      ldm 21930 21926 12  67 20        ?  49869          22:03:20 ?
>0:30 pqbinstats
> 8 R      ldm 21929 21926 11  67 20        ?  49874          22:03:20 ?
>0:30 pqact -f NNEXRAD /home/ldm/etc/pqac
> 8 S      ldm 21928 21926  0  56 20        ?    430        ? 22:03:20 ?
>0:00 startxcd.k
> 8 R      ldm 21936 21926 12  66 20        ?  49891          22:03:21 ?
>0:31 rpc.ldmd -q /home/ldm/data/ldm.pq /
> 8 S      ldm 21926     1  0  41 20        ?  49917        ? 22:03:20 ?
>0:00 rpc.ldmd -q /home/ldm/data/ldm.pq /
> 8 R      ldm 21927 21926 12  67 20        ?  49876          22:03:20 ?
>0:31 pqact
> 8 S      ldm 21951 21928  0  40 20        ?    430        ? 22:03:23 ?
>0:00 startxcd.k
> 8 S      ldm 21952 21951  0  41 20        ?    547        ? 22:03:24 ?
>0:00 DMSFC
> 8 S      ldm 21955 21951  0  41 20        ?    551        ? 22:03:25 ?
>0:00 DMMISC
> 8 S      ldm 21954 21951  0  41 20        ?    545        ? 22:03:24 ?
>0:00 DMSYN
> 8 S      ldm 21956 21951  0  41 20        ?   2587        ? 22:03:25 ?
>0:00 DMGRID
> 8 R      ldm 21934 21926 12  66 20        ?  49891          22:03:21 ?
>0:30 rpc.ldmd -q /home/ldm/data/ldm.pq /
> 8 S      ldm 21953 21951  0  41 20        ?    518        ? 22:03:24 ?
>0:00 DMRAOB
>
>I've tried to stop and start the server and am still not getting anything
>in:
>
>[ aeolus : ldm : ~/etc ]
>[ 62 ] > ldmadmin watch
>
>And I get a blank return.
>
>Notifyme is working:
>
>[ aeolus : ldm : ~/etc ]
>[ 63 ] > notifyme -vxl- -f ANY -o 3600 -h ldm.meteo.psu.edu
>Apr 29 22:08:49 notifyme[21974]: Starting Up: ldm.meteo.psu.edu:
>20030429210849.169 TS_ENDT {{ANY,  ".*"}}
>        NOTIFYME(ldm.meteo.psu.edu) returns RECLASS
>Apr 29 22:08:49 notifyme[21974]: NOTIFYME(ldm.meteo.psu.edu): reclass:
>20030429210849.169 TS_ENDT {{NNEXRAD|DIFAX|FNEXRAD|FSL2|UNIDATA,  ".*"}}
>        NOTIFYME(ldm.meteo.psu.edu) returns OK
>Apr 29 22:08:49 notifyme[21974]: NOTIFYME(ldm.meteo.psu.edu): OK
>^CApr 29 22:08:49 notifyme[21974]: Interrupt
>Apr 29 22:08:49 notifyme[21974]: exiting

'notifyme' is showing that ldm.meteo.psu.edu is willing to feed you.
Perhaps you did not wait long enough to see if it had products.

So, if you let your notifyme example run for a bit and do see products,
then it is likely that your LDM queue somehow got corrupted.  In this
case, you should delete it, remake it, and then restart your ldm:

ldmadmin stop
<wait for LDM processes to exit>
ldmadmin delqueue
ldmadmin mkqueue
ldmadmin start

We could snoop around if the above doesn't work.  We would need the password
for the 'ldm' account.

Tom

>From address@hidden Tue Apr 29 20:01:46 2003

Tom,

I rebuilt the queue.  Looks like that did the trick!

Thanks for your help!
Bill