Mux

<server_label>/mux/draining A counter of the number of times the server has initiated session draining.

<server_label>/mux/leased verbosity:debug A counter of the number of leases issued by the server when the session is is in a state other than draining or drained.

<client_label>/mux/draining A counter of the number of times a server initiated session draining.

<client_label>/mux/drained A counter of the number of times server-initiated draining completed successfully.

<server_label>/mux/duplicate_tag A counter of the number of requests with a tag while a server is processing another request with the same tag.

<server_label>/mux/orphaned_tdiscard A counter of the number of Tdiscard messages for which the server does not have a corresponding request. This happens when a server has already responded to the request when it receives a Tdiscard.

<server_label>/mux/request_context_bytes A stat of the size of the received context per request.

clienthangup A counter of the number of times sessions have been abruptly terminated by the client.

serverhangup A counter of the number of times sessions have been abruptly terminated by the server.

<label>/mux/framer/write_stream_bytes A histogram of the number of bytes written to the transport when mux framing is enabled.

<label>/mux/framer/read_stream_bytes A histogram of the number of bytes read from the transport when mux framing is enabled.

<label>/mux/framer/pending_write_streams A gauge of the number of outstanding write streams when mux framing is enabled.

<label>/mux/framer/pending_read_streams A gauge of the number of outstanding read streams when mux framing is enabled.

<label>/mux/framer/write_window_bytes A gauge indicating the maximum size of fragments when mux framing is enabled. A value of -1 means that writes are not fragmented.

<label>/mux/transport/read/failures/ A counter indicating any exceptions that occur on the transport read path for mux. This includes exceptions in handshaking, thrift downgrading (for servers), etc.

<label>/mux/transport/write/failures/ A counter indicating any exceptions that occur on the transport write path for mux. This includes exceptions in handshaking, thrift downgrading (for servers), etc.

<label>/mux/tls/upgrade/success A counter of the number of times the client or server has successfully upgraded a connection to TLS.

<label>/mux/tls/upgrade/incompatible A counter of the number of times a client or server failed to establish a session due to incompatible TLS requirements or capabilities.

<label>/mux/handshake_latency_us verbosity:debug

A histogram of the mux handshake latency.