[WT-support] Network problem, explosion of duplicates

[Braco OE1EMS]

we @ E7DX had few times in past that 2 people logged same QSO at same time on 2 different PC
there was no problemm except that this QSOs wasnt marked as dupe!

no idea about ES9C problemm Tonno!

73s
Braco

  ----- Original Message ----- 
  From: Tõnno Vähk 
  To: support at win-test.com 
  Sent: Friday, November 02, 2012 8:14 PM
  Subject: Re: [WT-support] Network problem, explosion of duplicates


  Tnx Bob,

   

  yes, it is a very serious issue especially as the reason is unclear and I have never heard anything like it.

   

  WT version 4.9.1 on all computers.

  All wired through Router in simple Ethernet network.

  No remote connections or anything else unsual. The same setup we have had for a while and nothing was really changed apart from running CQWW SSB MS for the first time.

   

  I don’t believe in RF being an issue also as nothing was changed and it has been RF free, can’t rule out though.

   

  I think there is some conflict in logging QSOs and network synchronization.

   

  Does anyone know what causes the „double QSO identifier, network will be disabled“ error? This might help to find the issue. Can it be that two QSOs are logged in two computers at exactly the same moment? What is the QSO identifier? 

   

  What causes the UDP packets 10035 (?) error, what does that mean?

   

  tonno

   

  From: support-bounces at f5mzn.org [mailto:support-bounces at f5mzn.org] On Behalf Of Bob Wilson, N6TV
  Sent: Friday, November 02, 2012 4:52 PM
  To: support at win-test.com
  Subject: Re: [WT-support] Network problem, explosion of duplicates

   

  Sorry to hear this report.  This does sound like a serious bug caused by a bad network connection.  But I don't recall hearing other reports of the same thing happening anywhere else.

   

  Which version of Win-Test?

  All computers running exactly the same version?

  All wired Ethernet or were some computers using Wireless (WiFi) or cell phone modem cards (Huawei)?

  Any remote (distant shack) connections via wtTunnel or equivalent?

   

  The text commands SYNC/NOSYNC will enable/disable network synchronization on any specific computer.


  73,

  Bob, N6TV

   

  On Fri, Nov 2, 2012 at 7:41 AM, Tõnno Vähk <tonno.vahk at gmail.com> wrote:

  Something strange and very troubling happened at ES9C MS this weekend. I was not there so I have tried to put the picture together. Maybe someone can figure it out...

   

  5 computers/stations were in the network. At some point error messages „Lost UDP packets“ and I guess number 10035 (or 10034?) appeared. Also error message „double QSO identified, network will be disabled“. After one of those messages at one computer when RELOAD was done to restore network the last QSO by that station was multiplied by thousands of times and synchronized to other computers!

   

  So I believe one QSO appeared over 90 000 (!) times (number of dupes exploding thus in summary window) and the whole network and all computers got very slow till Win-Test became totally not responsive.

   

  In general 100,000 QSOs could be OK in log (I saw 200,000 was ok on Ducie) so in addition to just QSO number something else severely loaded the network and computers, some continuous syncronization of something or I don’t know. It took a while now for QSOs to reach other computers (before network totally froze).

   

  The only way to get back to normal was to export Cabrillo log, clean it, delete the old log and import the cabrillo back!

   

  When doing Cabrillo it did not export all the QSOs  - is there a limit on 100 000 or so?? Last hour was gone.

   

  Also, a new row appeared into Summary window before Band row with big numbers. This column has not been shown anywhere in manual.

   

  We have had this „double QSO identified, network will be disabled“ often before. I would say on average 5 times in every 48 hour multi op operation on some computer. But always RELOAD has restored the network and all fine.

   

  Can anyone have any idea how this excessive multiplication of one QSO and total paralyzing of the network can happen? What can be the reason?? It happened two times during this contest and ruined any chances to compete for top in EU. The thing is a mess but I tried to write everything I heard...

   

  tonno



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