I had a problem today where Ignition wasn’t working properly.
Some of the problems were:
1. Tag Quality cycling between good and bad every 10 seconds from multiple Scan Classes
2. Lots of errors to do with failing database connections and Timeouts.
2. Gateway web pages very slow to update and get status info
3. Designer not responding and failed to open project.
This is only a small system with about 600 tags. And it has only one Client.
I checked the resources on the Gateway PC and it was using 20% CPU (Processor is a i7-2710QE) and about 80% Memory (of 8GB). Although high memory usage, I thought this was ok.
I though I would have to restart the gateway but tried just restarting the Client and it fixed all the problems. After restarting the Client, CPU usage dropped to 5% and java.exe memory usage dropped from about 3GB to 1GB.
What could cause these problems and how can I prevent it happening again?
Could it be to do with viewing long term trends?
My main concern is that many Transactions and Tag Change Scripts failed and these are used for reporting, so the data for this period will be wrong.
Any help is appreciated.
Below are some of the faults I had for your info: