BridgeVIEW 2.1.1. Suddenly: "Error Accessing Historical Database! Error Code: -7900"

[ulrik.jarno@knowit.se]

All of a sudden our BridgeVIEW 2.1.1 couldn't log data.
The button "Log Data" in BVEngine Manager went to OFF-status.
If we tried to press it to ON and start logging data again, it only came back to OFF-status.

The error message was this:
Error Accessing Historical Database! Error Code: -7900

Anyone having any idea what happened?

In the syslog-file following was logged:
(The error came up at March 3, 2003. The log before this was generated November 21, 2002, so the system is very stable usually)
EVENT 11/21/2002 10:17:36 Server Event from Server: Remote BridgeVIEW. Server Message: Connected to engine on snuggles.umeaenergi.se.
ERROR 03/02/2003 09:56:15 Error Acces
sing Historical Database! Error Code: -7900
ERROR 03/02/2003 09:56:15 Historical Logging Queue Overflow! Error Code: -7900
EVENT 03/02/2003 09:56:15 Historical data logging turned off.
EVENT 03/02/2003 09:56:17 Historical data logging turned on.
ERROR 03/02/2003 09:56:18 Historical Logging Queue Overflow! Error Code: -7900
EVENT 03/02/2003 09:56:19 Historical data logging turned off.
etc.

Regards,
Ulrik Jarno, Sweden

[andreoliveira 47]

Hi Ulrik,

This error has never been reported to National Instruments before, so since BridgeView has been out there for a while chances are that this behavior was caused by something very specific in your system.
The first thing you should try to do is to reproduce the problem consistently if you can.
Try to run the system in another machine and if that does not help call Natioanal Instruments technical support.

Best Regards

Andre Oliveira
Applications Engineer
National Instruments

[ulrik.jarno@knowit.se]

Well it will be hard to reproduce the problem when the machine has been running for 4 years 24-7 and this was the first time this error occured.
We have now been running a bit more than a month since the error occured without regetting the error.

-Ulrik