PG_COMM_DELAY¶
PG_COMM_DELAY displays the communication library delay status for a single DN.
Name | Type | Description |
|---|---|---|
node_name | text | Node name |
remote_name | text | Name of the node with the maximum latency in connecting to the peer end. |
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. |