PG_COMM_STATUS

PG_COMM_STATUS displays the communications library status for a single DN.

**Table 1** PG_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 the node, in byte/s.
rxkbyte_rate	bigint	Receiving rate of the communications library on the node, in kbyte/s.
txkbyte_rate	bigint	Sending rate of the communications library on the node, in kbyte/s.
buffer	bigint	Cache size of the cmailbox.
memkbyte_libcomm	bigint	Communication memory size of the libcomm thread, in bytes.
memkbyte_libpq	bigint	Communication memory size of the libpq thread, 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.