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[LDM #JUD-871181]: Slow write times or missing data

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  • Subject: [LDM #JUD-871181]: Slow write times or missing data
  • Date: Thu, 11 Sep 2014 10:06:17 -0600
Gilbert,

Glad we could help. :-)

> Hello Steve and Tom,
> 
> I need you to help me solve a vexing problem.
> 
> Here at AllisonHouse, we have a full Level 2 feed. We request it like so:
> 
> request CRAFT "K[A-D]" server
> request CRAFT "K[E-K]" server
> request CRAFT "K[L-R]" server
> request CRAFT "K[S-Z]" server.
> request CRAFT "P[A-Z]" server
> request CRAFT "T[A-Z]" server
> 
> And when we do an ldmadmin watch, I see:
> 
> Sep 10 23:07:09 pqutil INFO:   213301 20140910230708.215 NEXRAD2 623003
> L2-BZIP2/KILX/20140910230701/623/3/I/V06/0
> Sep 10 23:07:09 pqutil INFO:    41979 20140910230708.526 NEXRAD2 700059
> L2-BZIP2/KPUX/20140910230357/700/59/I/V06/0
> Sep 10 23:07:09 pqutil INFO:    39608 20140910230708.081 NEXRAD2 79055
> L2-BZIP2/TJUA/20140910230333/79/55/I/V06/0
> Sep 10 23:07:09 pqutil INFO:    77555 20140910230708.561 NEXRAD2 693052
> L2-BZIP2/KEAX/20140910230407/693/52/I/V06/0
> Sep 10 23:07:09 pqutil INFO:     6604 20140910230708.837 NEXRAD2 129001
> L2-BZIP2/KMHX/20140910230707/129/1/S/V06/0
> Sep 10 23:07:09 pqutil INFO:    28370 20140910230708.452 NEXRAD2 103062
> L2-BZIP2/KEOX/20140910230320/103/62/I/V06/0
> Sep 10 23:07:09 pqutil INFO:    93646 20140910230708.088 NEXRAD2 231014
> L2-BZIP2/KABX/20140910230421/231/14/I/V06/0
> Sep 10 23:07:09 pqutil INFO:    46856 20140910230708.712 NEXRAD2 3052
> L2-BZIP2/KTLH/20140910230428/3/52/I/V06/0
> Sep 10 23:07:09 pqutil INFO:   136626 20140910230708.301 NEXRAD2 448056
> L2-BZIP2/KIND/20140910230345/448/56/I/V06/0
> Sep 10 23:07:09 pqutil INFO:    35347 20140910230708.943 NEXRAD2 449012
> L2-BZIP2/KILN/20140910230639/449/12/I/V06/0
> Sep 10 23:07:09 pqutil INFO:    33578 20140910230709.137 NEXRAD2 762070
> L2-BZIP2/KPAH/20140910230246/762/70/I/V06/0
> 
> But we're missing data  And sometimes, the feed has been, on some
> individual sites, up to an hour delay when it writes. Do you have any
> thought as to what is wrong? ldmd.log shows no I/o errors, no
> feed-switching between servers. Date/time is fine on the local servers.
> 
> Gilbert
> 
> --
> ----
> 
> Gilbert Sebenste
> Chief Meteorologist
> AllisonHouse, LLC
> 
> From address@hidden  Wed Sep 10 17:41:50 2014
> 
> By the way, our pqact.conf entry to write these to disk is:
> 
> CRAFT
> ^L2-BZIP2/(....)/([0-9][0-9][0-9][0-9][0-1][0-9][0-3][0-9])([0-2][0-9][$
> FILE    l2data/nexrad/craft/\1/\1_\2_\3
> 
> 
> From address@hidden  Wed Sep 10 21:11:38 2014
> 
> Never mind. The stupid clock is way off on KCLE's Doppler radar. And we need
> to have a bigger Q so that it will transmit the data that's 15 minutes old
> from them.
> 
> Gilbert


Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: JUD-871181
Department: Support LDM
Priority: Normal
Status: Closed