PGXC_COMM_STATUS¶
PGXC_COMM_STATUS displays the communication library status for all the DNs.
Column | 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. |