In my environment , i had an additional polling engine.Some nodes were polled by that engine.When i click all the options in the orion platform it was so slow.
What the most weird is all the interfaces of those nodes polled by the additional polling engine were show the prompt "Displayed data is obsolete" ,But there is no alter about this polling engine, then i log in this polling engine,i found the dns was changed,then i modify the dns , all the interfaces recovered , i'd like to know how the dns or ad can impact the polling engine and npm
