Why do i need to restart after updating system to model changes to take effect?

[former_member669248]

I have observed in my system that whenever I do a schema change i.e change in items.xml, after i update system I need to do restfter that.
If I try to run just after the update it says something like, cannot get model from database.
This has to be done for every node in for that node to pickup mode changes.

Please suggest what could be wrong?

[geffchang]

"Update running system" needs to be done for all nodes, because each node has its own set of beans (or Type system). If the node is trying to access data from DB, but it isn't aware of the new Type changes, you will get an error.

Usually, you just need to do Platform Update for all nodes. You don't need to restart after that. I'm assuming your procedure is Build > Deploy > Platform Update.

[former_member696168]

Hi Raj

did you get solution for this problem?