Re: [noaaport] noaportIngester does not read incoming data

• To: George Trojan <george.trojan@xxxxxxxx>
• Subject: Re: [noaaport] noaportIngester does not read incoming data
• From: Steve Emmerson <emmerson@xxxxxxxx>
• Date: Thu, 11 Jun 2015 11:45:01 -0600

George,

The tcpdump(1) output indicates that UDP packets are being multicast to
address 224.0.1.3. The LDM configuration-file, however, doesn't execute a
program that listens to that address.

Incidentally, the "-x" (debug) option will likely result in too much
logging.

Regards,
Steve Emmerson

On Thu, Jun 11, 2015 at 10:57 AM, George Trojan <george.trojan@xxxxxxxx>
wrote:

>  It must be something stupid, but I am lost...
>
> Installed ldm-6.12.14 on Centos 6.6. Novra box sends data:
>
> # tcpdump -i eth1 -nn
> 16:37:34.094084 IP 10.0.9.54.38135 > 224.0.1.3.1203: UDP, length 4032
> 16:37:34.094286 IP 10.0.9.54 > 224.0.1.3: udp
> 16:37:34.094390 IP 10.0.9.54 > 224.0.1.3: udp
> 16:37:34.094539 IP 10.0.9.54.38135 > 224.0.1.3.1203: UDP, length 4032
> 16:37:34.094674 IP 10.0.9.54 > 224.0.1.3: udp
> 16:37:34.094825 IP 10.0.9.54 > 224.0.1.3: udp
> ^C
> # ifconfig eth1
> eth1      Link encap:Ethernet  HWaddr 00:25:B3:E2:5E:4E
>           inet addr:10.0.5.12  Bcast:10.0.5.255  Mask:255.255.255.0
>           inet6 addr: fe80::225:b3ff:fee2:5e4e/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:151147 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:9 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:40382553 (38.5 MiB)  TX bytes:734 (734.0 b)
>
> In ldmd.conf I have:
> # NMC
> EXEC    "noaaportIngester -x -b 8096 -m 224.0.1.1 -u 1"
> # GOES
> #EXEC   "noaaportIngester -n -b 8096 -m 224.0.1.2 -u 2"
> EXEC    "dvbs_multicast -x -m 224.0.1.2"
> EXEC    "readnoaaport -m 224.0.1.2 -u 2"
>
> After starting ldm the only entries in the log files are:
> # tail ldmd.log
> Jun 11 16:42:20 dvb1-aawu ldmd[12831] NOTE: Starting Up (version: 6.12.14;
> built: Jun 10 2015 17:34:55)
> Jun 11 16:42:20 dvb1-aawu ldmd[12831] NOTE: Using local address
> 0.0.0.0:388
> Jun 11 16:42:20 dvb1-aawu dvbs_multicast[12834] DEBUG: shmfifo_create():
> Got semaphore: pid=12834, semid=393219
> # tail nmc.log
> Jun 11 16:40:55 dvb1-aawu noaaportIngester[12714] NOTE:
> Number        0
> Jun 11 16:40:55 dvb1-aawu noaaportIngester[12714] NOTE:
> %             -nan
> Jun 11 16:40:55 dvb1-aawu noaaportIngester[12714] NOTE:         Full FIFO:
> Jun 11 16:40:55 dvb1-aawu noaaportIngester[12714] NOTE:
> Number        0
> Jun 11 16:40:55 dvb1-aawu noaaportIngester[12714] NOTE:
> %             -nan
> Jun 11 16:40:55 dvb1-aawu noaaportIngester[12714] NOTE:         Products:
> Jun 11 16:40:55 dvb1-aawu noaaportIngester[12714] NOTE:
> Inserted      0
> Jun 11 16:40:55 dvb1-aawu noaaportIngester[12714] NOTE:             Mean
> Rate     0/s
> Jun 11 16:40:55 dvb1-aawu noaaportIngester[12714] NOTE:
> ----------------------------------------
> Jun 11 16:42:20 dvb1-aawu noaaportIngester[12833] DEBUG: Mapping 2004615168
>
> Output from strace:
> 12833 is noaaportIngester
> # strace -p 12833
> Process 12833 attached - interrupt to quit
> futex(0x7fb9597bc9d0, FUTEX_WAIT, 12837, NULL
>
> and, for dvb_multicast:
> # strace -p 12834
> Process 12834 attached - interrupt to quit
> recvfrom(4,
>
> Any hints what should I check? I have noaaport 1.7.1 with ldm-6.9.8
> getting data from the same Novra receiver.
>
> George
>
>
>
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  • [noaaport] noaportIngester does not read incoming data
    • From: George Trojan