Updated on 2024-11-05 GMT+08:00

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.

Table 1 PGXC_WAIT_EVENTS columns

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.