PGXC_COMM_STATUS

PGXC_COMM_STATUS displays the communications library status for all the DNs.

**Table 1** PGXC_COMM_STATUS columns
Name	Type	Description
node_name	text	Node name.
rxpck_rate	integer	Receiving rate of the communications library on the node, in byte/s.
txpck_rate	integer	Sending rate of the communications library on a node, in bytes/s.
rxkbyte_rate	bigint	Receiving rate of the communications library on the bigint node, in KB/s.
txkbyte_rate	bigint	Sending rate of the communications library on the bigint node, in KB/s.
buffer	bigint	Cache size of the cmailbox.
memkbyte_libcomm	bigint	Communication memory size of the libcomm process, in bytes.
memkbyte_libpq	bigint	Communication memory size of the libpq process in bytes.
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.