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v3.0

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PG_COMM_STATUS

PG_COMM_STATUS displays the communication library status for a single node.

Table 1 PG_COMM_STATUS columns

Name Type Description
node_name text Node name
rxpck_rate integer Receiving rate of the communication library on the node, in byte/s
txpck_rate integer Sending rate of the communication library on the node, in byte/s
rxkB_rate bigint Receiving rate of the communication library on the node, in kbyte/s
txkB_rate bigint Sending rate of the communication library on the node, in kbyte/s
buffer bigint Size of the buffer of the Cmailbox
memKB_libcomm bigint Communication memory size of the libcomm process, in bytes
memKB_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.
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