Updated on 2023-10-23 GMT+08:00

GLOBAL_SESSION_MEMORY

GLOBAL_SESSION_MEMORY collects statistics about memory usage at the session level on each node in the unit of MB, including all the memory allocated to Postgres and stream threads on DNs for jobs currently executed by users.

Table 1 GLOBAL_SESSION_MEMORY columns

Name

Type

Description

node_name

name

Node name

sessid

text

Thread start time and ID

init_mem

integer

Memory allocated to the currently executed job before the job enters the executor

used_mem

integer

Memory allocated to the currently executed job

peak_mem

integer

Peak memory allocated to the currently executed job