- We fixed an issue where a warning was logged on startup about an already registered Jetty gauge when multiple listening addresses are specified. The connection metrics for Jetty are added per listening address and they now contain a tag `port` with the port number and a tag `host` if a host is specified. This is applicable to the metrics `jetty.connections.bytes.in`, `jetty.connections.bytes.out`, `jetty.connections.current`, `jetty.connections.max`, `jetty.connections.messages.in`, `jetty.connections.messages.out`, and `jetty.connections.request`. Be aware of the fact that there are usually two listening addresses when you specify **Open to current machine** for Runtime port security, for example 127.0.0.1 and ::1.
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