PGXC_COMM_DELAY¶
PGXC_COMM_DELAY displays the communication library delay status for all the DNs.
Column | Type | Description |
|---|---|---|
node_name | Text | Node name |
remote_name | Text | Name of the peer node with the maximum connection latency. |
remote_host | Text | IP address of the peer |
stream_num | Integer | Number of logical stream connections used by the current physical connection |
min_delay | Integer | Minimum delay of the current physical connection. The unit is microsecond. |
average | Integer | Average delay of the current physical connection. The unit is microsecond. |
max_delay | Integer | Maximum delay of the current physical connection. The unit is microsecond. Note If its value is -1, the latency detection has timed out. In this case, re-establish the connection between nodes and then perform the query. |