Forum Discussion

Dan_Wood's avatar
Dan_Wood
7 years ago

Tracking null system.category

I'm doing a moderately large new install of logicmonitor in multiple datacenters and found that if I come across a system that's being firewalled or blocked in general, it has a null system.categor...
  • Sarah_Terry's avatar
    Sarah_Terry
    7 years ago

    @Dan_Wood You should be able to check for devices with an empty system.categories property using this dynamic group query: 

    !system.categories

     

Dan_Wood's avatar
Dan_Wood
7 years ago
6 minutes ago, Dan_Wood said:

I'm doing a moderately large new install of logicmonitor in multiple datacenters and found that if I come across a system that's being firewalled or blocked in general, it has a null system.category.

I've been fiddling with using Dynamic Groups and have hit on a problem where I can't actually determine if system.category is null. I've tried hasCategory(""), system.category =~ "" , system.category !~ "*", and join(system.category,",") =~ ""

Any guidance would be appreciated.

 

Gah, I typo'd in my post; s/category/categories/