Shared Network Variable timeout?

[Wayne.C]

Is there such a thing as a timeout when trying to read a TCP based Shared Network Variable?  Just how long does the Shared Variable Read wait before returning an error if the variable/variable engine are not available?   If so, does anyone know what the default is and if it can be changed?

I'm troubleshooting a problem that involves a cFP hosting the SVE and a program deployed on a host pc.  I believe the problem is related to network response times being very slow at certain times of the day.  Particularly first thing in the AM when everyone is logging in, checking E-mail etc.  

[Karunya_R]

Centerbolt,

Do you get an error message on your host computer? This kb might be helpful.

[Wayne.C]

Karunya,

Just getting started with this.  Due to the nature of the application the error handling is a bit different and I will have to modify it so I can see what is happening in the host and target executables.  I will probably have to start logging them to a .txt file.  If I'm not standing right there when the problem occurs, the operator is going to reset the cFP and continue on. 

I asked about the timeout because I know the network has been experiencing BW issues at certain times of the day and this would explain the behaviour I'm seeing.   All I do know at this time is that it appears that the SVE remains up and running on the cFP.   

[Karunya_R]

Hey centerbolt,

I am not familiar with what a BW issue is. Educate me?

[RavensFan]

I believe he is using BW as abbreviation for bandwidth.  In other words, too much network traffic during that time of day causing interruptions in the communication.

[Karunya_R]

BW never crossed my mind as the abbreviation for BW. Anyway to answer the time out question, shared variables don't have a timeout. Once they are deployed, they are going to wait until there is an update. But if there is high network traffic, the update might take a while but it will happen at somepoint.

[Karunya_R]

Centerbolt,

Once you troubleshoot some more, check for errors from the SVE on the host computer.