There is a facility that is running 7.9.13 that was doing a windows OS upgrade on the primary gateway yesterday and the engineer pointed out to me that he could not force a fail over to the backup gateway. I was not in the position that day to take a look but he sent me the following screenshots.
Can anyone shed some light on what these errors mean? This is what the client showed when he restarted the primary gateway to finish the OS upgrade. He told me that no vision clients ever switched over to the backup gateway.
Just for some context. I am looking into the issue today and I have done the following steps:
- Forcing a resync to the backup machine which completed without errors.
- Tried to force the failover from the primary which did nothing
- Tried to force the failover from the backup which caused all clients to reset but they reconnected to the primary gateway after the reset.
The following is a portion of the gateway log on the primary gateway:
As you can see a second after the primary gateway switched to the ‘cold’ state the backup sent that it’s activity was cold which seems wrong to me…
Then the primary gateway switched back to active which caused the vision projects to restart which is what I seen happen in real time watching the process.
Any help or troubleshooting advice would be much appreciated!