How to set some nodes on pause/hold/noop?

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http://serverfault.com – is there an option to set a node on hold (set it on noop), on the puppetmaster side? i am looking for a setting like in the example below. every node which has a variable called noop set to true in it's definition, won't be updated. so example1.node.com will not have the test1 file after multiple puppet client runs but example2.node.com will have the file. is there such an option? does another approach exist? (of course i can simple add a "_" to the node name and it will stop matching. i am looking for the official way. node "example1.node.com" { $noop = true file { "/r (HowTos)