Transport

Netty Transporter <<<<<<<<<<<<<<<<<

connect_latency_ms A histogram of the length of time it takes for a socket connection (including SSL/TLS handshake) to succeed, in milliseconds.

failed_connect_latency_ms A histogram of the length of time it takes for a socket connection (including SSL/TLS handshake) to fail, in milliseconds.

cancelled_connects A counter of the number of attempts to connect that were cancelled before they succeeded.

ServerBridge <<<<<<<<<<<<

read_timeout A counter of the number of times the netty channel has caught a ReadTimeoutException while reading.

write_timeout A counter of the number of times the netty channel has caught a WriteTimeoutException while writing.

ChannelRequestStatsHandler <<<<<<<<<<<<<<<<<<<<<<<<<<

connection_requests verbosity:debug A histogram of the number of requests received over the lifetime of a connection.

ChannelStatsHandler <<<<<<<<<<<<<<<<<<<

connects A counter of the total number of successful connections made.

closes A counter of the total number of channel close operations initiated. To see the total number of closes completed, use the total count from one of the "connection_duration", "connection_received_bytes", or "connection_sent_bytes" histograms.

connection_duration verbosity:debug A histogram of the duration of the lifetime of a connection, in milliseconds.

connection_received_bytes verbosity:debug A histogram of the number of bytes received over the lifetime of a connection.

connection_sent_bytes verbosity:debug A histogram of the number of bytes sent over the lifetime of a connection.

received_bytes A counter of the total number of received bytes.

sent_bytes A counter of the total number of sent bytes.

tcp_retransmits verbosity:debug A counter of the number of TCP retransmits that have occurred.

tcp_send_window_size verbosity:debug A histogram of the TCP send window size (in bytes) per channel.

writableDuration verbosity:debug A gauge of the length of time the socket has been writable in the channel.

unwritableDuration verbosity:debug A gauge of the length of time the socket has been unwritable in the channel.

connections A gauge of the total number of connections that are currently open in the channel.

exn/<exception_name>+ A counter of the number of times a specific exception has been thrown within a Netty pipeline.

tls/connections A gauge of the total number of SSL/TLS connections that are currently open in the channel.

tls/snooped_connects A counter of the number of TLS connections that were detected via snooping.

IdleChannelHandler <<<<<<<<<<<<<<<<<<

disconnects/{READER_IDLE,WRITER_IDLE} A counter of the number of times a connection was disconnected because of a given idle state.

SSL/TLS <<<<<<<

handshake_latency_ms A histogram of the SSL/TLS handshake latency in milliseconds.

failed_handshake_latency_ms verbosity:debug A histogram of the failed SSL/TLS handshake latency in milliseconds.