I'm using a nagios script monitor to do a more detailed web check against one of our servers and getting "Test failed with "Unknown" status on hostname. Invalid unit." It's a simple curl call to a web page and looking for the string "Overall test passed: true".
This is only failing in one of the two nodes in a high availability pair. Works just fine on the other one.
Anyone seen this before and know what causes it? Script runs perfectly fine if I run it manually on the node as well.