When an upstream node fails to handle a request, a second node receives the request. In this instance. the upstream_response_time field will contain 2 numbers separated by a comma and space. The match: %{NUMBER:upstream_response_time} will thus not match thus the whole pattern will likely fail.
When an upstream node fails to handle a request, a second node receives the request. In this instance. the upstream_response_time field will contain 2 numbers separated by a comma and space. The match: %{NUMBER:upstream_response_time} will thus not match thus the whole pattern will likely fail.