PGXC_COMM_STATUS

PGXC_COMM_STATUS displays the communication library status for all the DNs.

**Table 1** PGXC_COMM_STATUS columns
Name	Type	Description
node_name	text	Node name
rxpck/s	integer	Receiving rate of the communication library on a node. The unit is byte/s.
txpck/s	integer	Sending rate of the communication library on a node. The unit is byte/s.
rxkB/s	bigint	Receiving rate of the communication library on a node. The unit is KB/s.
txkB/s	bigint	Sending rate of the communication library on a node. The unit is KB/s.
buffer	bigint	Size of the buffer of the Cmailbox.
memKB(libcomm)	bigint	Communication memory size of the libcomm process, in KB.
memKB(libpq)	bigint	Communication memory size of the libpq process, in KB.
%USED(PM)	integer	Real-time usage of the postmaster thread.
%USED (sflow)	integer	Real-time usage of the gs_sender_flow_controller thread.
%USED (rflow)	integer	Real-time usage of the gs_receiver_flow_controller thread.
%USED (rloop)	integer	Highest real-time usage among multiple gs_receivers_loop threads.
stream	integer	Total number of used logical connections.