[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[LDM #NET-131221]: LDM is crashing my machine

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [LDM #NET-131221]: LDM is crashing my machine
  • Date: Mon, 11 Feb 2008 08:47:53 -0700
Gilbert,

> I also see this upon startup:
> 
> Feb 10 15:18:22 weather bigbird.tamu.edu[3520] ERROR: readtcp(): EOF on
> socket 4
> Feb 10 15:18:22 weather idd.unidata.ucar.edu[3524] ERROR: readtcp(): EOF
> on socket 4
> Feb 10 15:18:23 weather idd.unidata.ucar.edu[3521] ERROR: readtcp(): EOF
> on socket 4
> Feb 10 15:18:27 weather idd.unidata.ucar.edu[3524] ERROR: one_svc_run():
> RPC layer closed connection
> Feb 10 15:18:29 weather idd.unidata.ucar.edu[3524] ERROR: Disconnecting
> due to LDM failure; Connection to upstream LDM closed
> Feb 10 15:18:32 weather pqact[3507] WARN: write(6,,4096) to decoder took
> 29 s: xcd_runDDS
> Feb 10 15:18:32 weather bigbird.tamu.edu[3520] ERROR: one_svc_run(): RPC
> layer closed connection
> Feb 10 15:18:32 weather idd.unidata.ucar.edu[3521] ERROR: one_svc_run():
> RPC layer closed connection
> Feb 10 15:18:32 weather weather3.ca.uky.edu[5746] NOTE: Data-product with
> signature a6230299e36242cd37ab2b6b8f4eafc8 wasn't found in product-queue
> Feb 10 15:18:33 weather idd.unidata.ucar.edu[3524] NOTE: LDM-6 desired
> product-class: 20080210201821.195 TS_ENDT {{NEXRAD2,
> "L2.*(KLOT|KIWX|KDVN|KILX|KMKX|KDMX|KLSX|KMPX|KARX)"$
> Feb 10 15:18:33 weather weather3.ca.uky.edu[5747] NOTE: Data-product with
> signature 91669a4e7a91db96642f47d1558fb7d2 wasn't found in product-queue
> Feb 10 15:18:33 weather bigbird.tamu.edu[3520] ERROR: Disconnecting due to
> LDM failure; Connection to upstream LDM closed
> Feb 10 15:18:33 weather idd.unidata.ucar.edu[3521] ERROR: Disconnecting
> due to LDM failure; Connection to upstream LDM closed
> Feb 10 15:18:33 weather weather3.ca.uky.edu(feed)[5746] NOTE: Starting
> Up(6.7.0.0/6): 20080210200712.412 TS_ENDT {{UNIDATA,
> "(^[9A-OQ-X])|(^[YZ].[^HIJRU])"}}, SIG=a6230299e3624$
> Feb 10 15:18:35 weather idd.unidata.ucar.edu[3524] NOTE: Upstream LDM-6 on
> idd.unidata.ucar.edu is willing to be an alternate feeder
> Feb 10 15:18:35 weather weather3.ca.uky.edu(feed)[5747] NOTE: Starting
> Up(6.7.0.0/6): 20080210200712.415 TS_ENDT {{UNIWISC,  ".*"}},
> SIG=91669a4e7a91db96642f47d1558fb7d2, Primar$
> Feb 10 15:18:35 weather bigbird.tamu.edu[3520] NOTE: LDM-6 desired
> product-class: 20080210201832.066 TS_ENDT {{NIMAGE,  ".*"},{NONE,
> "SIG=dd8a0a3edcc5c926953439dc57dd76bd"}}
> Feb 10 15:18:35 weather idd.unidata.ucar.edu[3521] NOTE: LDM-6 desired
> product-class: 20080210201832.082 TS_ENDT {{NIMAGE,  ".*"},{NONE,
> "SIG=dd8a0a3edcc5c926953439dc57dd76bd"}$
> Feb 10 15:18:36 weather weather3.ca.uky.edu(feed)[5746] NOTE: topo:
> weather3.ca.uky.edu {{UNIDATA, (.*)}}
> Feb 10 15:18:36 weather weather3.ca.uky.edu(feed)[5747] NOTE: topo:
> weather3.ca.uky.edu {{UNIWISC, (.*)}}
> Feb 10 15:18:39 weather bigbird.tamu.edu[3520] NOTE: Upstream LDM-6 on
> bigbird.tamu.edu is willing to be an alternate feeder
> Feb 10 15:18:47 weather idd.unidata.ucar.edu[3521] NOTE: Upstream LDM-6 on
> idd.unidata.ucar.edu is willing to be an alternate feeder
> Feb 10 15:19:50 weather weather3.ca.uky.edu(feed)[5746] ERROR: Couldn't
> flush connection; nullproc_6() failure to weather3.ca.uky.edu: RPC: Unable
> to receive; errno = Connection$
> Feb 10 15:19:52 weather rpc.ldmd[3503] NOTE: child 5746 exited with status
> 6
> Feb 10 15:19:53 weather weather3.ca.uky.edu(feed)[9442] NOTE: Starting
> Up(6.7.0.0/6): 20080210201033.080 TS_ENDT {{UNIDATA,
> "(^[9A-OQ-X])|(^[YZ].[^HIJRU])"}}, SIG=7479e5df47344$
> Feb 10 15:19:53 weather weather3.ca.uky.edu(feed)[9442] NOTE: topo:
> weather3.ca.uky.edu {{UNIDATA, (.*)}}
> Feb 10 15:20:52 weather weather3.ca.uky.edu(feed)[9442] NOTE: feed or
> notify failure; COMINGSOON: RPC: Unable to receive; errno = Connection
> reset by peer
> Feb 10 15:20:52 weather rpc.ldmd[3503] NOTE: child 9442 exited with status
> 6
> Feb 10 15:20:53 weather weather3.ca.uky.edu(feed)[9834] NOTE: Starting
> Up(6.7.0.0/6): 20080210201134.257 TS_ENDT {{UNIDATA,
> "(^[9A-OQ-X])|(^[YZ].[^HIJRU])"}}, SIG=f354f1521d632$
> Feb 10 15:20:53 weather weather3.ca.uky.edu(feed)[9834] NOTE: topo:
> weather3.ca.uky.edu {{UNIDATA, (.*)}}
> 
> -----------------------------------------------------------------------------
> Sorry, meant to include that before!

The LDM is designed to handle the errors you describe (and does so every
day).  It's, therefore, very unlikely that they are causing the problem
with the kernel's paging system.

> Gilbert
> 
> *******************************************************************************
> Gilbert Sebenste                                                     ********
> (My opinions only!)                                                  ******
> Staff Meteorologist, Northern Illinois University                      ****
> E-mail: address@hidden                                  ***
> web: http://weather.admin.niu.edu                                      **
> *******************************************************************************

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: NET-131221
Department: Support LDM
Priority: Normal
Status: Open