Help with import/export

[Kyle R. Jones]

Hi All,

      I have a remote earthworm system collecting data from Geotech and Reftek digitizers that is then trasmitting that data to me via the export_scnl and import_gen modules. I have been having issues with the two modules crashing/reconnecting frequently, resulting in dropouts (See attached screenshot). I have looked through the forum and tried many different combinations of heartbeat, etc. I was hoping someone could take a look and see how I might clear this up.

The only tricky thing is that the data coming in from the Geotech system doesn't seem to be experiencing the same dropout pattern. So it's possible that I have two issues. One with the rtp2ew and possibly the export_scnl module. I'd still like to get confirmation on the export/import settings.

 I have attached all files just for completeness. 

List of attachments:

Screenshot (seismic Reftek)

Screenshot (infrasound Geotech)

export_scnl.d

import_gen.d

rtp2ew.d

earthworm.d (remote machine)

Thanks

Kyle

________________________________________________

Kyle R. Jones
Sandia National Laboratory
Infrasound Geophysicist
Ground-Based Nuclear Monitoring R&E (Org. 5736)
Bldg 758/1029a
PO Box 5800 / MS: 0404
Albuquerque, NM 87125-0404
Phone
Office:     (505) 284-2621
iPhone:  (505) 401-3556
Email: krj...@sandia.gov

________________________________________________

 

[mwit...@memphis.edu]

I think there's a problem in your import_gen.d

Your export looks ok, its sending alive messages every 30 seconds and is
expecting to receive alive messages every 150 seconds. But your import
is sending alive message every 150 seconds and expecting to receive
them every 30 seconds. Switch that to sending every 30 and receiving
every 150.

in import_gen.d change to this
MyAliveInt 30
SenderHeartRate 150

The idea is that a module always sends at least 3 or 4 times more often than
the other end is expecting to receive so that you can drop one or two without
killing the connection.

Mitch

Center for Earthquake Research and Information (CERI)
University of Memphis Ph: 901-678-4940
Memphis, TN 38152 Fax: 901-678-4734

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[Paul Friberg]

Kyle,

For the import/export, a log file would help in the future....but......

However, the problem is quite obvious, you have your connection HEARTBEAT rates set identical to what the reciever is sending. You should make them 2x what the sender is sending!! We teach this in our EW course every year BTW :)

No clue on your rtp2ew and rtpd without log file to go on...that stuff is pretty solid if the comms are good.

Cheers,

Paul

[Kyle R. Jones]

Thanks Mitch,

      After changing this so many times I was a bit confused. I've changed it and will give it a try. Are the gap messages on the remote machine related to this issue too? "5 gaps; largest 14249 for <R2A.BHZ.PA.01>"

-- Paul, I know, I should really try to attend one of those courses. It would help greatly. Here are the logs I forgot to include.

Kyle