PGXC_WAIT_EVENTS
PGXC_WAIT_EVENTS displays statistics on the waiting status and events of each node in the cluster. The content is the same as that displayed in GS_WAIT_EVENTS. Only users with system administrator permissions can access this view.
Column |
Type |
Description |
---|---|---|
nodename |
name |
Node name. |
type |
text |
Event type, which can be STATUS, LOCK_EVENT, LWLOCK_EVENT, or IO_EVENT. |
event |
text |
Event name. For details, see PG_THREAD_WAIT_STATUS. |
wait |
bigint |
Number of times an event occurs. This column and all the columns below are values accumulated during process running. |
failed_wait |
bigint |
Number of waiting failures. In the current version, this column is used only for counting timeout errors and waiting failures of locks such as LOCK and LWLOCK. |
total_wait_time |
bigint |
Total duration of the event. |
avg_wait_time |
bigint |
Average duration of the event. |
max_wait_time |
bigint |
Maximum wait time of the event. |
min_wait_time |
bigint |
Minimum wait time of the event. |
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